Showing posts with label spring. Show all posts
Showing posts with label spring. Show all posts

Tuesday, June 20, 2017

MGB - Front Suspension Refresh (Part 3)

I'm continuing the front end rebuild I started in Parts 1 (See MGB - Front Suspension Refresh Part 1) and 2 (See MGB - Front Suspension Refresh Part 2). At this point, the front beam is stripped and removed from the car. We've evaluated the parts, and made determinations about which to keep and which to replace. Today starts the work of putting it all back together again. WooHoo!

Pivot on the Swivels
There some things really are best left to a shop. I want to do as much as I possibly can myself, but it's not a religion. It's just a strong preference because I want to learn and because I find it fun. I read through the process for removing and replacing the king pins and bushings within the swivels (wheel assemblies). This requires a shop press, which I don't have nor do I have the space for, and a trained eye for determining the viability of the wheel assembly as a whole. So, I contracted the fine folks at British Auto Works to do it. Like so many things, I expanded the job from just swapping the king pins and bushings to also include replacing and grease-packing the wheel bearings. Doing the wheel bearings didn't really increase the cost, and it gave me the peace of mind that the entire front end had been updated. British Auto Works completely strips, and then chem-tanks all of the wheel assembly. after testing and measuring everything, they assemble the wheel and finishes the job with fresh paint. All told, it took them three days, and most of that was because they wanted extra time in the chem-tank. The finished product looks fantastic and delivered that piece-of-mind that they were properly done.

Paint
While the swivels were at British Auto Works, I started working on the beam. For being exposed to the elements, and road debris for almost 40 years, I would have expected more damage or rust. In truth, it was in pretty good shape. So, I cleaned it up, first with a power washer, then by hand with Simple Green. Once cleaned, I could see a few scratches, but it was in really fine shape. I threaded the rusty old bolts which held the front shocks back in. I did that so paint wouldn't gum up the threads. Then I sanded it, wiped it down with mineral spirits and shot it with high-gloss black paint. Since I had the time, I let the paint cure for a week, light sanded it, wiped it down and shot another coat. At this point, I removed the old shock bolts so the paint would cure without them. While I had the materials out, I cleaned up the spring pans and springs, sanded and painted them too. Truth be told, I had lots of other parts around that I intend to re-install, so I cleaned them up, sanded, wiped and shot them too. I'll share some of the tear-down and re-assembly of those things in other posts. Everything got high-gloss black except the springs. Those I shot burnt orange which from afar looks like the vermilion on the body, but its not an exact match. I decided it wasn't a deal-breaker so I also sanded, wiped and shot the underside of the frame where the front beam mounts to it. I figured I wouldn't have that exposed again any time soon so why not?

Beam Me Up
Once the paint has been shot and cured, I was able to start assembling things. First, was the re-install of the bare beam. Since I was working on this by myself, this was a great deal harder than the removal. Why? The beam is held on with 4 bolts. Each bolt has a nut on both ends, and it passes through 2 poly/graphite (or rubber of simply poly) bushings, one on either side of the beam. The drawing on the side, here, with parts labelled 1 through 7 show the front bolt. The rear is similar. Note the orientation of the bolt in the drawing: the lump is on the bottom. This is important since the thinner stretch of the bolt runs up into the frame. If you try to send the lump up, it will not make it through the frame. Yes, I did try it that way. If you're doing this on your own, I fumbled my way into a process that works:

Get the beam onto your jack, and roll it under your front bumper. Looking from above, roughly align the rear of the beam with the rear frame holes, but still a few inches below it.
Pick a side. It doesn't matter which. Take the shorter, rear bolt, and load the bolt, stacking from the bottom: nut, plate, bushing. twist the nut onto the bolt a few turns. Slide the bolt up through the rear hole from the bottom of the beam, placing the top bushing onto the bolt. I found that these bushings sort of held the bolt in place.

With the bolt held in with friction, get more precise with your alignment, but just worry about that one hole and bolt. Raise the jack and re-check. Repeat until you have the bolt and hole lined up. Then, while holding the bolt to the beam, raise the jack, pressing the bolt into the frame. Once the bolt peers through the top of the frame, put the top nut on. Again, thread the nut on just a few turns so the bolt can hold the beam, but there is still a couple of inches between the top of the beam and the bottom of the frame.
The one bolt creates a pivot point so you can align another hole. I did the other rear bolt, following the same routine. With the rear bolts loosely in, the fronts are much easier. Stack the front bolts again from the bottom: nut, plate and bushing. Set the upper bushing, and set the bolt through the frame hole. Thread on the top bolt.
Now you can start tightening the nuts. On all 8 nuts you want some threads to peek out from the nut. If you don't see threads, you may not have enough bite on the nut to withstand the pressures during intense driving. Then, torque to spec (54 to 56 ft/lbs).

Shock Me
Once I had the beam in, I shifted to installing the front shocks. If you remember, the removal was only difficult for the rear bolts because of how close they are to the wheel well. The install is also challenged by this. If you painted your beam, did you paint with the bolts out? I accidentally left one out: the one I took to the hardware store. That bolt hole was a real pain to get a bolt into at this stage. The others just took a little windex on the bolt, and it threaded right in. Once finger tight, it doesn't take much to torque it down... except getting a torque wrench in there is impossible. You'll need to feel it, as you're aiming for 43 to 45 ft/lbs. I actually came back and torqued after I did the lower control arms because the torque settings are so close, I got a good feel for what 45ft/lbs is supposed to feel like.

Lower Control Arm
Now for the fun part. Whether you bought new arms or cleaned up your originals, there are two different arm shapes: one for the rear and one for the front. The "front" has a hole specifically for the sway bar that's reinforced. Pick a side. Grab a spring pan, three sets of spring pan fasteners (1/2" nut-washer-bolt combinations) and your lower control arm bushings. If you got the fender washers like I did, grab them too. You don't need the lower trunnion kit nor the spring yet. On each arm, press in the bushing. If you got the poly bushings, this may require a press. The rubber and poly/graphite fit in without much difficulty.

Slide a fender washer onto each front-back side of the pivot (the thing on the beam that the lower arms attach to). Then fit the rear and front arms on that same side, making sure to have them pointing towards each other and making sure you're using a front and a rear arm in the right spots (rear on rear, front on front). Yeah, that sounds obvious and all, but once you get on the ground all those arms start to look the same. Consider that the flat side on the arm faces the pan (see the picture).

Let the arms hang down and grab the spring pan and one set of fasteners. Holding the pan with the dish facing towards you, lightly thread the bolt through from the outside of the arm through to the pan. Set a washer on the bolt and then finger a nut onto the bolt. Do not tighten yet. Do the other 2 fastener set the same way: 2 on the rear, one on the front. With the spring pan loosely held to the arms, slide the other fender washers on and follow with the castle nuts. Once everything is on, but loose, start tightening things, moving from castle nuts to spring pan fasteners so no bolt gets hung up because it has been left untouched for too long. When everything is snug, torque to spec: 22 ft/lbs for the spring pan fasteners and 45 ft/lbs for the castle nuts.

For the castle nuts, align the castle with the cotter-pin hole and put in the cotter pin (or bailing wire, if you're like me). Better to torque a little too much than not enough, IMHO, but you shouldn't need to go higher than 50 ft/lbs. If you do, re-check your work. Maybe something is hanging up.

That's it for this time. I should be able to finish this up in just one more post. I'll get the swivels and springs on, and then the major efforts are completed. Thanks for following along. This has been an incredibly rewarding effort.

Tuesday, June 13, 2017

MGB - Front Suspension Refresh (Part 2)

Continuing from my last post, I'm focusing this group of posts on the rebuild of the MGB front end. Today, we get down to the beam, and get it removed from the car. I'll evaluate parts, and talk about replacement bushing options. Part I can be found here.

Shocking
While the beam is in, and you have access to your front shocks is the best time to evaluate them. On the right side, the shock responded relatively well to my efforts to move the arm up and down. It resisted in both directions, but not as much as I would have liked. Still, I probably could have left it alone. The shock on the left (driver) side, however, offered virtually no resistance to my attempts to move it. In fact, I could push it to the top of it's motion and it would slowly drop down. That shock is shot. Suspension shops usually recommend replacing both fronts and/or both rears at the same time. For a front-end like this one, where the shock absorber is also playing the part of the upper control arm, it is all the more important. These are held in place by 4 bolts. The two against the inner wheel well can be difficult to get to, but you can address them with the most basic spanners and ratchet/sockets. Similar to the engine mount replacement (see MGB - engine mounts), a good supply patience is welcomed here.

Set the shocks aside with the lower arms and pans. To protect the threaded holes, finger the old bolts back into the holes. I took one with me to Orchards and found replacement grade 8 stainless steel ones for the reassembly. I strongly recommend replacing fasteners with stainless steel or zinc coated to reduce the rusted-on effect.

Beam Down
image swiped from 'net,
but that's a stock beam
Now, the front beam should only be connected to the car by 4 bolts. Nothing else should be tying them together. No brake lines, steering bits, etc. but it never hurts to stupid-check (so-called for those moments when you don't check, something bad happens and call yourself stupid for not checking).

I used an ATV / transmission jack, but a more standard wheeled floor jack should work; it will just take more patience with balance. The ATV / transmission jack is nice in that it has two long arms to spread the weight, and improve the balance. Still, with the front end way in the air, and the rear on the ground, the bottom of the beam is not parallel to the floor. So, I slid a 2x4 under the front of the beam when the ATV / transmission jack reached the underside of the beam to make uniform contact. Raise the jack until it is holding some weight, but not much. You want the car stable on it's jack stands.

Relieve the torque on the 4 bolts by cracking the 4 bolts on top. you shouldn't need to hold the bottom nuts at all for this. I used the breaker bar with an assortment of extensions. Once cracked, do the same on the bottom nuts, just so they are not rusted in place. Whether you remove the nuts on top or the bottom or a mixture doesn't really matter. In the end, all 4 bolts need to be un-nutted on both ends. You would think that once the nuts have been removed from the bolts, they would just fall out. Fat chance. How about lowering the jack a little bit? Nope. To free the bolts, the top nut needs to be removed. Then, using a socket extension so you can address the bolt, rap the bolt from above with a rubber mallet. When this doesn't work, use a framing hammer, but be very careful with those bolts. They are not normal and if the threads are damaged, you'll need to order new ones.

Once the bolts fall out, either through banging or playing with your jack or maybe you got lucky and they just fell out... you'll see that these bolts are 2 different lengths and that the longer bolts (that fell out of the front) have a lump in the middle like a poorly rolled spliff. I retained all of this hardware, choosing to not try to find replacements, though I thought about it. Simply lower the jack, and the beam will lower with it. Pull out the front under the radiator and bumper.

Parts and More Parts
At this point, I was pretty spent. From the start of the prior posting to the beam on the ground was at least 2 days. Now that I've done it once, though, I could do it again in 1/3 of the time or faster. As I set with a beer, I looked at the pile of parts and the zip-lock baggies of fasteners. The fasteners were all bare steel, and they had plenty of rust on them. I chose to replace all of them except the beam-to-frame nuts and bolts. I added 4 fender washers to fit between the beam and the lower control arms. I felt this would help the bushings last longer. The fasteners probably put me back $50. Then, I turned to the pile of parts:

front shock absorber /
upper control arm
Front Shock Absorbers (2) New, these are crazy expensive. Moss has them for over $330 each. Instead, I found World Wide Auto Parts in Madison, WI who rebuilds originals. After some research I bought a pair from them at $99 each plus core which was returned when I sent my old ones back to them. They really look great, and if they work as well as they look, I just may go back for replacements of the rears instead of doing the swap-out for non-MGB rear shocks that so many folks do. The paint chips off without much effort, so if you're going for a show-car experience, I'd recommend repainting them.

Lower Control Arms (4) These looked okay, but without tight tolerance measuring tools, I couldn't tell if any of the important holes on the ends were out of round. Replacements for all 4 was $70 with OEM British steel, and the originals could have been worn from the bad seals, so I coughed up the $70.

lower control arms
Spring Pans (2) Like the arms, I couldn't tell for sure if the mounting holes were out of round, but on very close examination none of the holes looked oval. Since no pivoting happens with these pan holes, even a little out of round probably wouldn't matter so I chose to keep the spring pans, and just clean them up instead. New-steel replacements are $32 each at Moss, so they're a little steep cost-wise compared to some of the other bits. Still, if the spring pan won't firmly attach to the arms, your suspension won't be safe, so spend the $64. In the end, there was 0 play after everything was put back together, so my assessment was correct.

Front End Rebuild Kit (1) This was the whole point of this work. I found a few different suppliers for this kit, and resolved to buy from British Parts Northwest for $120. While their return policy is crap, their price is $35 less than Moss. These kits include:
- king-pin set and bushings. These run vertically between the arms and through your swivels
- upper control arm nut/bolts. They call them "fulcrum pin and hardware" and they attach the top of the swivel to the control arm / front shock absorber.
- upper control arm bushings (rubber or all-poly). These pair with the upper control arm nut/bolts to complete the set. I ended up swapping out the kit-supplied ones with some Poly/Graphite bushings I got from a new friend, Basil, in California ($6)

- lower control arm to swivel bolt/nut and bushings. They call these "Lower Trunnion Kits".
- lower control arm to beam ("A-Arm") bushings and bolts (rubber or all-poly). Again, I went with Poly/Graphite ($20) from Basil instead of the kit-supplied ones.

To do the front end rebuild, that's really all you need. I decided, though, that as long as its open, replace the beam-to-frame bushings.... and the sway bar bushings. Again, I sourced these from my friend in California. frame bushings ran $23 and the sway bar bushes were $10. When I consider there was no extra labor for the beam bushings, and very little on the sway bars, this was a very low cost to get the front end as rock-solid stable as possible.

Rubber, Poly and Poly/Graphite
Just for an aside, I wanted to touch on the differences between these three types of bushing. As a general rule, it's best that you pick one and stick with it through the front end. Since they behave a little differently from each other, the front end could be less predictable if your lowers and uppers are not the same material and respond to stresses differently.

Rubber - this is what you had originally. When squeezed between two pieces of steel which want to twist, the rubber twists with it. This smooths out the twisting motion, giving an easy, forgiving ride. For a cruiser, this is great material.


beam to frame bushings
Poly - this is the more common "upgraded" bushing. Unlike the rubber, the poly does not twist with the steel; it resists the twisting motion. This resistance reduces the degree of the twist, allowing more of the force through to the ride. This is a much less forgiving ride, but gives you a much stronger "sense of the road". Installing these bushings can be very difficult, requiring water-based lube or other tricks, maybe the use of a shop press. Once installed, most owners report loving them.

Poly/Graphite - this is in-between the Poly and Rubber in terms of road feel and difficulty of install. Basil described this far better than I could, so I will quote: They look like black plastic that has some give to them. You can put one between your thumb and forefinger and feel it give a little. The polyurethane matrix has a slippery substance called "graphite" (a crystalline form of carbon) in the polymer matrix so a slippery bit is always exposed and thus self-lubricating the bushing. No special install efforts needed.

This post got long again, so I'll continue in another post. At this point, we have the front beam completely torn down, our parts are ordered, and fasteners sourced at the local hardware store. We'll start next time with some painting and then assembly. Thanks, as always, for following along...

Tuesday, June 6, 2017

MGB - Front Suspension Refresh (Part 1)

Before I took the little British car to a shop for review, I did the brakes on all 4 corners (See MGB - Brake Job). While I had the front end on jack stands, I noticed some weirdness with the front end suspension. Today's post starts the documenting of that work.

Well, That's Not Right
weather stripping?
So, I had the front end in the air and the front wheels off, trying to get after the bolts which hold the calipers onto the front swivels. On my back, lying under the front right (passenger) fender, or wing in British car parlance, I noticed that the front of lower control arm was attached to the front beam, but it looked like the bushing had been replaced with a strip of window insulation. Huh? I pushed and pulled up and down on the arm and it wiggled. Yikes. I looked at the point where the front shock attached to the top of the swivel, and that bushing looked old and tired: brittle and cracked. The top connection didn't wiggle, but something that brittle was at end-of-life. I slid around to the left (driver) side. There, I found more dust and more surface rust, but both the top and bottom bushes on the swivels looked like the top of the passenger side: old, brittle and tired. This front end needed a complete re-bushing before being driven very hard.

Getting Down to the Beam
I had a few weeks between jobs around the holidays, so I thought it was a perfect window of opportunity to do the front end. I did spend some focused time during those weeks, but I also took advantage of an amazing snow season by hitting the mountain a few times, I visited with family, etc, so I didn't exactly get this done within the window. As usual, this took me longer than it would probably take most folks to do.

Since we're working on the front end, we start with loosening the lug nuts and then putting the front end on jack stands. This time, get the front end as high as you can get it without getting nervous about how high it is. The key here is having it high enough so the lower control arms can hang straight down once disconnected. Figure, that's at least 16 inches at the rear of the lower control arm. Once on the stands, remove the wheels and stow them out of your way.

Disconnect the brakes. Start with loosening and then removing the calipers. You may need to pull the pads before the calipers will come free. I was able to remove everything as a unit but I just did these pads. I ultimately needed to disconnect the front brake lines so I'd suggest you completely remove the calipers from the car now. Once the calipers are free, disconnect the brake hard-line from the front beam. Remember that brake fluid is corrosive, so wear gloves, use a catch-pan and dispose of safely. Its nasty stuff on your paint too, so basically, have it avoid everything but the pan.
get it way up in the air

Remove the steering rack. I already had mine off (See MGB - Steering Rack), which was one reason why I jumped into this over the winter.

Disconnect the front sway bar from the control arms. In the picture above, you can see them still connected to the lower control arms out near the wheels. Once the nut is removed on each end, coax the threaded end out the front. Sounds easy, and the second side is. The first side can be a bear.

Orienting on the Lower Control Arms
If you have ideas about doing more than just replacing the beam-to-frame mounting rubber, there's more to do. If not, I get to dropping the beam in my next post. Since I aim to refresh the whole front end, I kept going.

First, pick a side. If you are space-constrained like I usually am, pick the side where you have more room first so you get a feel for the work and don't lose your patience as quickly. If you consider the lower control arm is a capital "V" lying on its face, there are 2 bolts holding it on: one at the bottom and one across the top. The one at the bottom attaches the arms to the wheel assembly (often referred to as the swivel). The one at the top attaches them to the front beam. Extending our capital letter metaphor, the spring comes from above and lands into the middle of that "V", making it more of an "A". Where the spring reaches the arm there is a round cup for the spring to sit in. It is not held in place by any fasteners; this last bit is an important safety consideration during removal.

Pop Goes the Front Spring
bottom of the "V"
Start with putting your floor jack under the spring cup in the lower control arm. Set it far enough to the outside where it will grab the cup edge but not so far out that you can't get a spanner or socket onto the bolt/nut because the jack is in the way. Raise the jack just enough to take some of the energy out of the springs. There is a debate on the internet about how pressurized these springs are and whether there is reason for concern for them launching when the arm is removed. They are under reasonable pressure and there is reason for concern. Take a couple of zip-ties and zip-tie the top of the spring to the beam. If you don't, it will take off in an unpredictable direction when the lower arm is lowered.

Back to the removal... there is a cotter pin running through the castle nut, so remove that. Take note that replacement cotter pins are NOT included in any of the rebuild kits available out there, so either get some independently or do like I did and use bailing wire at install-time. Crack, loosen and then remove the nut/bolt that runs across the bottom of the "V" I described above in Orienting on the Lower Control Arms. The bolt can be hard to remove. Unlike the cotter pins, replacement castle nuts are included in the kit so you can use your old castle nut on the end of the bolt as a target for your hammer. The castle nut doesn't take punishment as well as a standard nut, so you still need to be careful: once the bolt breaks free, you still need to be able to thread the castle nut off the bolt to get it completely out. With the bolt out, the jack is all that is holding the spring under pressure. Make sure the top is zip-tied to the front beam! Slowly lower the arm until the spring pops out of the cup. If you raised the car high enough, you will be able to completely lower the jack and the arm will hang straight down. Sometimes the swivel gets hung up in the arm, so you may need to coax the 2 pieces apart. If you find this necessary, be mindful of how much spring tension is supported by the jack. It will unload quickly if not contained by the jack.

Once the arm is hanging free, cut the zip-ties and move the spring out of the way. You may choose to paint or powder coat them as long a they're out. I shot mine with paint, thinking I didn't have time (nor money, the paint was free leftover in my cabinet) to powder coat.

Spring Pan
Removing the rest of the arm assembly isn't terribly difficult, even for me. The spring pan is held to the arm with 3 nut:bolt combinations. If I remember correctly, they are all 1/2" drive. There are two on the rear and one facing front. The front one was paired with a threaded end of the sway bar which we removed earlier. With the bolt:nut combinations removed, the arms and spring pan should fall to pieces. Set the spring pan aside.

Remove the Lower Control Arms
The inner end of the control arms are held to the front beam with large castle nuts. The nuts are held in place with cotter pins. Like the pins at the other end of the arm, these do NOT appear in any of the kits available out there, so either acquire some elsewhere (local hardware store) or use bailing wire like I did for install. So, remove the cotter pins that hold the castle nuts, then remove the nuts. There are replacement nuts and washers in the kit. Set the arms with the spring pan for inspection.

Upper Control Arm... Er.. Shocks
left swivel top
Unlike lots of other cars, these little British cars don't have a traditional upper control arm and piston-style shock absorber. Instead, the shock and upper control are are one kinda weird unit, but it works. They are oil-filled, and for space purposes, it makes the most of what's available. The top of the swivel is attached in a similar way to all of the others in this job: castle nut, cotter pin,
long-ish bolt that needs to get banged out with a hammer. The rebuild kits also provide parts the same way: all bolts, washers and nuts are provided. NO cotter pins. The swivel is kind of heavy, so put something kind of soft to catch it when you get the bolt removed. If your experience is like mine, you'll be banging away on the bolt and then without any real sign it will suddenly pop out and the swivel will topple. Without something to cushion it's fall, a drop onto the concrete of your garage could damage something.

Now, do the other side. Whee!

At this point, your lower control arms are removed, and your front swivels are as well. Your front shocks are still on the beam, and the beam is still in the car. This is when I will pick it up next time where I'll cover removing the front shocks, evaluating them, the spring pan, and control arms for re-use, buying parts and of course, lowering the front beam.

Thanks for following along. This series of posts represents one of the longest, biggest things I've done since I rebuilt the front end on the bus: the post that launched this blog.

Friday, November 20, 2015

Daily Driving

At some point after my trip to Boston, the clunking noise coming from the front end of my 2001 TDI Jetta (Flash) started to really get to me. I don't know if it was the weather changing or the car's growing desire to turn right, but I knew something was going sideways. Today's post covers that saga.

Rebuild Parts
from MetalMan Parts
I trolled around the internet and found some good pub on this rebuilding kit from MetalMan Parts. So, I hit the site, and made some decisions. First, I got the fuller kit with the TT rear bushings. While that cost a little more, I figured this was a replacement I probably wouldn't be doing again. I also got new front struts (COFAP for comfort, recognizing the TT rear bushings will stiffen the ride) and new strut mounts. I had read good things about a 1" lift kit from Evolution Import, and I got that too. A few days later both shipments had arrived.
Upon inspection, the MetalMan kit was pretty fantastic. Every fastener that needed to be removed had a replacement. They sent both sway-bar bushing sizes and replacement clamps. It looked great.
The Evolution Import kit wasn't as impressive, but it looked like what I expected from the instructions online. It was shiny and relatively simple. I ended up not putting the rear lift in, and the Jetta sits flat with out it.

Destroyed My Arms on My Arms
I set aside the weekend to install everything, with the recognition that I would need to take the strut assemblies somewhere to get the springs moved from the old set to the new set. I'd also need to get the alignment done somewhere. Otherwise, I felt I could do everything else. 9:AM Saturday morning, I pulled Hapy out of the garage bay where he'd been resting since our active Summer and put Flash in his place. By 11:AM, his was on stands, the Panzer plate was off and I had my plan of attack. I'd start with removing the control arms. Once the old ones were off, I could easily get at the sway bar bushings as well as get the struts out.  The sway bar links came out with little trouble, but the 2 18mm bolts with point towards the rear were a little tight. I had to work them pretty hard, and I found my arms started to get sore. But that was nothing compared to the 2 bolts which fed up from below. I tried PB Blaster. I tried a propane torch. I tried this stuff from Amsoil called "toolbox helper". I went back to the torch. By late-afternoon, it was clear I wasn't going to get either of them off so I soaked them with the Amsoil stuff and let it sit overnight.

Sunday morning, I ate well, enjoyed coffee with Boo and then went back to the bolts. Within 30 minutes, I'd concluded that the soaking hadn't helped and I was stuck. My arms were really aching from the day before, so I started looking for options. Since the front end was in pieces, I couldn't easily take the car to someone to get the bolts off, so I hit craigslist for someone willing and able to do the work in my garage. I found a father-son team, and they were happy for the work.

MobilePDX
now that's a breaker bar
MobilePDX is a father and son team who have worked on cars for years. Courtney is around my age (dirt is older, the internet is not) and has been wrenching on cars since he was a kid. They were organized, clean and left my garage in better shape than they found it. I'd originally intended to have them just get the 2 bolts off and swap the struts, but once they got going, it was just easier / faster to have them finish the job. They were able to get the passenger side bolt off with a breaker bar and youthful strength. The driver-side had to get ground down with an angle grinder. I'm not exactly sure how they got the bolt out after that. They followed my original plan from there, verifying my thinking... which is always nice.

Aw Nuts
After MobilePDX got everything back together, they discovered that the front caliper bolts were not grabbing into the hubs. Upon inspection, the threaded holes weren't threaded anymore. Neat. The proper repair is to over-drill the holes and thread in a helicoil (or something similar). That is what Courtney said and the chat-rooms agree with him. Others have used an oversized bolt that is so widely available both on the internet and the FLAPS (friendly local auto parts store), I'm inclined to think it is becoming a widely endorsed solution as well. While I sort this out, Flash sits on jack-stands and I am driving Hapy every day.

Hapy Hapy Joy Joy
I'm sure if I look back into this blog, I have many references of going back to driving the bus after a period of not driving him and expressing the pure joy of driving the bus. It really is awesome. The smiles, waves and conversations happen as much in the wind and rain as they do in warm summer. That's pretty neat.
I have continued my experimenting with the shift-point, shifting now around 3400RPM. This allows for the engine speed (when dropped into gear) to still have some turbo influence. So, he's got even more zip than the old 1700 had from the bottom to the top.
I just put 10 gallons into the tank, and I got over 28mpg since the last fill. Since there's a lot of city driving in there, I think I could have a viable city/highway mix guess: 27 city / 33 highway. Pretty fantastic. It hasn't been all smooth sailing though.

Fix-It List
On an exceptionally cold morning, I discovered that the dash vents weren't quite aligned properly. When I went to fix it, I accidentally pulled the wiper electricals out of the switch. Turns out, that bundle of wires needs to go through the hitch in the center of the plastic "Y", not around it.
After fixing that in the parking lot at work, the heat is suitable for clearing the windscreen from mist or fog, but it smells like diesel exhaust. I need to locate a source for fresh air before I drive Hapy into real cold weather.
The fuel gauge needs to be replaced. I still don't know the actual capacity of the tank and guessing based on the mileage when I last filled isn't a reliable measure. Cold wet weather isn't the time to guess if you need fuel.
I didn't re-install the door seals after I painted the top 1/3 of the bus. This creates a pretty good breeze when travelling over 35mph. I need to install them. Of course, the old ones were pretty beat up, so I need to order another set.
The bus still has some rattles, and I think one of the door skins is the main culprit for most of it. Also, the other jalousie window is now making the noise the rebuilt one used to make. Perfect. Time to rebuild the other window.
Last, the brake warning light flickers at me. This usually happens when I remove or do something around the battery. Since I had to charge the battery before moving him out of the garage, this was self-inflicted. I think there's a fluid leak near the master cylinder, though, so I may have to do a fuller brake overhaul soon. Either way, I'd like so much for the flicker to go away, or just never happen.

That's it for today. Like usual, if I'm not posting, its because I'm working on one of the cars.... or traveling. Once the front brakes / hubs are solved, Flash will be driving again and I'll start knocking down the list above for Hapy. The good times never end. As always, thanks for following along, and please pray for snow. I'd really like to get some gravity testing in this winter and our farmers need the snow-pack for summer irrigation-

Tuesday, May 20, 2014

Whatcha Hiding?

I realized that I hadn't posted about the screens I have been working on, or at least I can't find a post where I did.  So, I'll get remedial and cover that today.

Screens
In the later year campers, there is a closet blocking most of the left-rear window (on the driver's side, but all the way to the rear).  The driver couldn't see out this window anyway, so it doesn't create a blind spot.  I thought it would be neat to create a few screens to put over the window since the only thing a passing motorist would see otherwise is the backside of a closet.  When I built the ski rack (see Rack 'em, Snow Bum), I realized that I needed a screen if for no other reason to hide the equipment.
snow-themed screen lying on my garage floor
In the interests of spending no money, I went digging through my supplies.  I found the ceiling panel from the donor bus from which I got the Riviera Top.  It didn't fit my bus, and I didn't need it anyway, so I didn't bother with it.  Some careful measuring later, and I had 3 equal-sized screens that each completely blocked the rear window.  I set them on top of one another, and drilled mounting holes through so they would all mount the same.  Last, I held one against the inside of the window and marked drill holes in the steel.  A few minutes with the drill later and I had 3 interchangeable screens.

work in progress. top screen is the "Furthur" one
bottom screen was 1st draft layout
I base coated 2 of the screens with the same bright white that I painted the front bumper (see Front Bumper  part 4), thinking I'd use them as a landing zone for themes of stickers.  I hadn't really thought about what all of the themes would be, but I figured I'd have at least the one about snow.  For that one, I drew mountains based on pictures of various resorts around the Pacific NorthWest (the top picture).  Whatever stickers I had, or acquired, for snow would go on that screen.  I used the other white one first, just to block out the sun last Fall when I went to Eugene to see Furthur (see A Tale of Two Trips).  I just taped a picture and some inspiring words on there as a placeholder.  This Saturday, I completed my vision for a screen dedicated to music and music festivals: completely covered with images of ticket stubs plus the VW-your-face that was on the original screen when we went to Furthur.  I don't yet have a plan for that last screen.  Maybe, I'll use that as a spot for stickers, pictures, etc dedicated to camping, for those trips we take that aren't music-venue focused.

installed screen viewed from the outside.
That's it for today.  I've been driving the bus to work lately.  With the mufflers on the pop-top springs (see Spring Sprang Sprung), its conversationally quiet at idle.  With the window rebuilt (see Jalousie Window rebuild), its quiet enough to have an "outdoor volume" conversation while driving.  Its pretty fantastic.

Wednesday, April 16, 2014

Spring Sprang Sprung

I played with the bus a little bit this past weekend.  I made some headway on a few things, but only really completed one thing, so I'll post about that today.

What's that Racket?
sprang-sprang-sprang
Now that the jalousie / jealous window in the sliding door has been rebuilt, I thought the noise in the bus would have been greatly improved.  It isn't.  Okay, well, it isn't as improved as I thought.  When I'm at idle at a stop light, the engine drops to around 900RPM.  At any speed, there's an harmonic vibration, but at 900, the helper-springs in the Riviera pop top really get going.  They bang against the scissor supports and make a terrible racket.  It sounds like "sprang-sprang-sprang...".

Silence the Din
muffling the noise-maker
Now, I could remove the springs.  That would make the pop top much harder to lift.  The pop top has 6 springs, though only 2 are easily visible.  The other four are way up near the top, but still on the outside of the scissor supports.  There are no springs on the front or rear.  They are all just less than 1" in diameter and just less than 2' long when the top is up (and springs at their shortest length).  I've seen pictures of pop tops where the spring over the slider door had a cover that looked like it was made of cloth, which got me thinking about other options.

It was a beautiful Spring day and Boo had been spending the afternoon waging
slight bowing over drip rail
 a war on the dandelions in our yard while I clowned around in the garage.  About the time I was considering the springs she realized she needed some grass seed for the holes she was making, so we headed for Home Depot.  She headed for the lawn/garden stuff and I had this spring-silencer idea and headed for pipe insulation.  I got 2 6' lengths of the cheapest pipe-insulation they had for 1" pipe, costing about $2.25.  I figured I could cut them into 2-foot lengths and wrap the springs so they wouldn't make that racket any more.  I simply cut them into thirds, and slit their lengths so they could slide on.  I quickly had a muffler for each spring.  They installed in a couple minutes, and very effectively stopped the noise.  I didn't have the time to make a full test drive, but simply idling the engine in the driveway was much quieter.

The one drawback I've noticed is that the pop top doesn't sit as cleanly between the drip rails as it used to.  I may experiment with removing the covers on the the lower springs to see if the loss of noise reduction is made up for by the top sitting properly.

That's it for today.  Thanks for following along-