Hi guys,
Here's an update on my last visit down to Carl which was a couple of weeks back. I spent a week down there again and managed to get the brake system finished, just needs bleeding.
On my last visit, I decided to bring the calipers home with me so I could strip and rebuild them. When Carl first drove my bus in to his workshop, he commented on how hard my brake pedal was and he said there is obviously something wrong somewhere. This came to light when I came to refurbish the calipers as the pistons were stuck in the bore. These calipers were renewed in the 90's as I have the bill from one of the previous owners and hadn't done a tremendous amount of miles but I think they'd just stood around for a while. The first thing we noticed when we removed the calipers from the bus about a year ago was that the dust seals around the edges of the pistons had disintegrated so this is one for you all to check next time you have your pads out! Two pistons came out easy, the third was reasonably difficult and the forth after lots of penetrating oil, I slid a 3mm punch through the brake pipe drilling in the back of the caliper, laid the caliper flat on the bench and very carefully with just the weight of the hammer head, tapped the piston free without any damage.
The next stage was the clean all the exterior of the calipers which I did using one of those heavy duty wire brushes that go on your angle grinder. If you're using this type of wire brush any time, whatever you do, make sure you wear safety goggles which I did, but still got a few of the wires breaking off and hitting me in the face! Once cleaned up, I then honed out the housings with a honing tool, (you can use scotchbrite and WD40 or wet & dry) then completely washed and blew out the airwaves, making sure everything was spotlessly clean inside.
I then scouted around the shed to find some paint to use on the calipers. I found a tin of gold jap laq, must have been something my dad bought years ago! I then gave them two coats of the gold and they came up really nice and period looking. The next stage was to put the seals on to the pistons which is just a matter of sliding the seal over the edge of the piston carefully in to the groove. I then slid the dust cap over the edge of the piston next and lubricated the bore and the piston with brake fluid and made sure the piston was sitting square in to the bore before carefully pushing the piston back in, taking care not to damage the seal. The outer part of the dust cap then just sits up against the body of the caliper. I then replaced the two seals which fit in the housing to seal the caliper when it's bolted back together. I reused these two seals because they looked ok, but the only place I know that supplies these are JustKampers, if you should need them.
The two halves were then put back together and torqued up (I think it was 25lb, without checking). All in all, it took me a couple of days, taking my time. A very simple job to do, well in the scope of everybody on here.
There does seem to be a vast price difference in price from dealer to dealer in the caliper seal rebuild kit. Mine came from Heritage and cost nearly £40 for the two kits which I thought was a hell of a lot of money considering you just get two seals and two dust covers per kit. I think the same rebuild kit from the likes of Mega Bug was around about the £28 mark so please shop around to get the best deal!
I then returned on my last visit to Carl with the completed calipers and refitted them to the bus. I was really pleased wit the end result. It'll be interesting to see now once the bus is finally back on the road, what the brake system will be like with a completely refurbed system all round plus a Harry Harpic remote servo conversion. I will keep you posted on what this system performs like. If it's as good as I hope then this should be a really cheap brake upgrade.
Here are some pictures of the calipers being refurbed and fitted (if you need anymore info on doing this, feel free to ask):
Another reason for this visit was to push on once again with the Pop Top. Carl had already applied several coats of primer which he then sprayed with guide coat a number of times and flatted, even though no ones going to see this unless you're in a low flying aircraft, but this is typical of Carls standard, it just has to be right.
Once this was all flatted, we then loaded it on to the roof rack on Carls bus and went off to a spray booth which Carl hires from a garage in Braunton. Carl then cleaned the top, ready for spraying whilst I cleaned the booth up. Once all was ready and the roof had been cleaned for the final time, I then left the booth whilst Carl sprayed on the black which has a satin finish. Because we didn't have a lot of the black metallic paint left with the red fleck, it was first given a few coats of satin black as a base and then finally finished with the metallic paint (see photos below). Once this was then dried, Carl then sprayed three coats of clear laquer and was left in the booth to harden overnight. We then went back to the booth the following morning and collected the Pop Top, carefully wrapping it and strapping it back on to Carls roof rack, very nerve racking! Once we arrived back at Carls place, we then set the Pop Top up on two work mates upside down ready for Lee who was coming at 1030 to put the final vinyl around the outside edge of the Pop Top and fit the trim around the black velor area. When the black vinyl was applied, it tucks underneath where the velor finishes so you do not see the edge and then the outside edge was finished by Lee lifting the existing rubber around the outside edge of the Pop Top and applying the vinyl underneath so we ended up with the perfect finish. Where the four corners meet, Lee had prestitched these to give a nice edge and then bonded to the roof cap so it looks like the four pieces of vinyl are machine stitched all around. Very neat as usual (see photos below).
We then decided the best place to store the Pop Top was back on top of the bus for safe keeping so Carl and I then very carefully dropped it back on and could wait to look inside to see the effect of everything in black! It looks absolutely fantastic! We haven't lined it up properly in the pictures but you'll get an idea and be able to see the black vinyl around the edge of the inside. This area will also house the lifting mechanism which has been powerdercoated in satin black but even though the bus isn't finished, it's amazing how quiet it is inside when you speak now the interiors back in with the sound deadining.
Here are the pictures of the Pop Top:
Lee also brought down the cushion for the parcel shelf which he has done in plain black vinyl to match the rest of the boot area. Really pleased. The only part Lee has left to finish now is to make the spare wheel cover in black carpet and finish the carpet in the cab area. All the interior is just loosely fitted at the moment as it's all got to be removed to be fully wax proofed. The roof area was done before it went to Lee and Lee wax proofed the floor area for us so it's just the sides and door areas to be done. Snapped a couple of extra pictures of the doors open to show off the door cards.
One of the next big jobs will be to spray the dash in the same colour as outside. The top section of dash will be done in satin black. Carl has also got to design and build a mechanism for operating the heater controls and air vent so the sliders will protrud down below the dashboard, out of sight but still fully operational. Can't wait to see this dash put back in with all the gauges!
My next visit will probably be just after Christmas where the next stage will be to polish the laquer on the Pop Top and refit all the mechanism with the uprated springs. Just hoping that the springs are man enough to keep the Pop Top in the up position! It works fine on one of my mates but not so good on another mates! Fingers crossed. If these springs are not man enough, then I will have some more made by a company I know.
We are getting very close now to the final big push. It's got to be done by March 2012 because we missed VolksWorld last year but we are now back in again for 2012 so this will then bring the total of the restoration to three years nine months!
Here's one for you Andy, as you suggested last time, it'd be nice to see some round LED lights in the Pop Top, if you look carefully on the side sections of what was done previous, you'll see where the wires hang out which is where my lighting system will go. Would look quite nice in the Pop Top as well but there's no way you can do it without showing any cables but your comment was appreciated.
Just like to take this chance to wish everybody a very Merry Christmas and a Happy New Year.
Regards.
Steve