17 August, 2019
Trevor finally has all the parts he needs for the Baja Bug "Type 4" engine rebuild; the cam has been the holdup for weeks and he finally cancelled the original order after repeated delays and promises that came to nothing. He ordered his cam from another vendor and it was shipped and received the following day...... Now that we have all the necessary parts, we spent today reassembling the engine. We were able to build it to a little more than a "short block" condition before we had to call it a day (we were only able to devote about a half day to it and we had some clean up and machining to do in addition to assembly) - we'll finish it up with a few hours' work next time and we'll post photos then.
16 August, 2019
I just got home from a week of "you bet your job" in the B767 simulators in Memphis this morning - my last training event before I retire in December. That's a relief, but I had to hit the ground running when I got off the airplane after being up all night; we bought a Bridgeport mill and it's being delivered today so no nap for me! I headed to the shop to await its arrival - it finally arrived a couple of hours later than promised but that's life in the big city and I'm just happy to have it in the shop! We set it in place and I started getting it wired and ready for use - it's not new but in great shape and usable as is but I'll be cleaning it up, getting it "trammed in" and adjusting all the gibs to get rid of as much "slop" as possible. Given its age and history, it'll never be as "tight" as it once was but it'll be fine for our needs. We may still adjust its location but for now it sits next to our Logan lathe along our "machine shop wall".
The machines are sitting on wood blocks for now; I'll make adjustable feet for them so we can level them and ensure that there is no "twist" being introduced by the uneven floor they're sitting on.
11 August, 2019
We spent the day at the shop finishing up the rear bumper on Trevor's Baja Bug along with re-plumbing the clutch slave cylinder and the fuel lines. Trevor added a selector valve so that he can choose which fuel tank to use - the stock fuel tank for normal street driving or the fuel cell for long distance off road trips. The fuel cell will normally be empty for street driving but would become the primary fuel tank and the stock tank a reserve supply when off road. We also rearranged a portion of our shop to make room for a Bridgeport mill that we expect to acquire in a week or so.
04 August, 2019
Trevor and I spent today at the shop - designing, fabricating and installing a new rear bumper for his Baja Bug update. The new transaxle/engine location requires that a new bumper be fabricated and Trevor wanted to change to an "old school" look anyway.
The photo above shows the basic structure of the new bumper tack welded in place - we'll add side impact protection tubes once we completely "mock-up" the engine and exhaust so we can see what's needed. It took us most of the day to get to this point; designing, bending, hand fitting, aligning and making new upper and lower bumper mounts required problem solving at every step......
02 August, 2019
I spent a little time at the shop today - finalizing the brakes and wiring the fuel cell quantity gage. The interior is now complete and if the engine was ready, we could drive the car tomorrow..... We still have a rear bumper to fabricate along with the details that go with it - new brake/turn signals, license plate and skid plate mounting provisions.
20 July, 2019
We spent most of the day at the shop working on the Baja Bug update. I had done a preliminary brake "bleed" during the week and wanted to see how they felt today; not good - we immediately saw that the left rear caliper was leaking from the body somewhere. We checked all the fittings and bleed screws - no leaks there. It appears that the caliper body is leaking somewhere, one of the piston seals is the most likely problem. This is a bit frustrating - these are new SACO calipers. I guess we'll have to remove it and see what we find.
On a positive note, we finalized the fuel cell installation with the plumbing and wiring complete and routed through the body. Once that was complete, we reinstalled the rear glass; we had removed all three windows for access during the cage construction. Moving along, we fabricated an aluminum cover for the exposed shift linkage then reinstalled the carpet in the rear seat area. Next came reinstallation of the newly refurbished front seats - that required that we make some spacers to install under the seat frame rear legs to adjust the seat angle to a more upright position for both driver comfort and cage clearance. Photos to come.
14 July, 2019
Trevor and I spent a half day at the shop working on his Baja Bug update. We finished prepping the CV's for better performance, then assembled, greased and installed the axle assemblies. We were pleased to find that with the rear suspension on the bottom stops, we had no binding of the CV's and don't need to limit the rear suspension travel. We may still install "limit straps" but only to keep the suspension from banging onto the bottom stops when it "unloads". We also began designing the new rear bumper.
06 July, 2019
Trevor and I have worked on the car several times since my last entry and we've made considerable progress; The roll cage is complete and painted, the fuel cell is installed, the shocks are installed and the brakes are plumbed and ready to bleed. We've prepped and polished the new CV's, inspected and polished the axles (race care parts that had been replaced and then used for spares) and are ready to install them next time. With the cage and fuel cell installations complete, we can reinstall all the glass we removed and begin the process of plumbing and wiring the fuel cell, followed by reinstallation of the interior and seats. Once those things are done, there will be a bunch of little finishing details to attend to but the majority of the udpate will be complete. The only thing left will be to rebuild the engine and reinstall it. Nearly done! Photos to follow.
22 June, 2019
Trevor and I spent a half day at the shop today, fabricating and installing the roll cage to frame horn support structure. That completes most of the fabrication portion of the Baja Bug update; now it's simply a matter of painting the roll cage, reinstalling the glass, reassembly and installation of the engine and building a new rear bumper. I forgot to get any photos today.
20 June, 2019
Spent today working on the Baja Bug update shifter installation; with the Bus transaxle in a beetle body, it's necessary to run the shift tube above the "tunnel" and that requires some adapting of the actual shifter to make it all mate up properly. I also spent some time doing a little shop clean-up; my tools were scattered all over the floor and we were spending more time looking for tools than actually making progress......
8 June, 2019
Good progress today; we picked up the rebuilt transaxle yesterday and spent today fabricating mounts for and installing it. We didn't go "full race" with the installation; it's destined to be a pre-runner so we dialed back our ambitions a bit..... We've tried to make the installation as secure and off-road capable as possible but didn't attempt to optimize it for racing. There are performance gains to be realized but their price (in time) isn't justified in a pre-runner.
5 June, 2019
Since our last update, Trevor has disassembled his Baja Bug Type 4 engine for overhaul and dropped the parts that need some machine shop attention at Paradise Motor Sports. He has a new cam and lifters on order - hopefully he'll have everything ready for reassembly in the next couple of weeks. His transaxle is nearing completion at "Power Box" so we should be able to begin designing and fabricating the mounts and shift mechanism soon.
I've been working on a recent shop acquisition - a 12" Logan Lathe. Mechanically, it's in great shape - I just wanted to clean it up, change the gear oil, adjust the gibs, lubricate everything properly, replace the drive belts and do a little re-wiring. As received, the 3-phase motor was wired to use the forward/reverse selector as the start/stop switch - it was bypassing the "Furnas" magnetic starter completely. This meant that the normal start button and brake switches were not functional and the fwd/rev selector was carrying electrical loads it wasn' really meant to handle all the time. In addition to installing a phase converter to provide the necessary 3-phase power, I replaced the old magnetic starter (it was set up for 440 volts and wouldn't actuate with 240 volts - given its age, I chose to replace rather than tinker with adapting it) with a newer 240 volt unit and rewired the start button and brake lever switches to provide the correct start/stop functions. Now, the fwd/rev selector does only that and the magnetic starter carries the big electrical surges encountered when starting and stopping - it all works correctly now. We'll need to rearrange the shop a little to make a permanent place for it; it's currently just sitting where we unloaded it.
25 May, 2019
Today was "roll cage fabrication day" on Trevor's Baja Bug update; we cut, bent, fitted, welded and gusseted the entire roll cage today. We now have a safe structure to protect the occupants and to carry the rear suspension shock loads. It's really nice to have the right tools to do this job - when we built the 5/1600 car, we used hack saws and a manual tube bender..... With our hydraulic tube bender, plasma cutter and hydraulic press brake we were able to do in one day what took several days previously. Having done this before may also have helped......
18 May, 2019
Trevor and I wrapped up the microstub install today; we greased the stub axle splines, torqued the axle nuts then installed split pins to secure them. Following that, Trevor fabricated and installed the IRS pivot pin locks. With the rear IRS conversion complete, it was time to move on to creating openings for the new shocks in the wheel well areas then fabricating and installing the roll cage structure. We have a good start on the roll cage with the "B" pillar, rear diagonal hoop and its support tubes. We have much more to do on the cage structure but we ran out of tubing.....
11 May, 2019
Big day at the shop - Trevor and I were able to final install all the IRS suspension components (less the shocks) and get the car back on the tires. We were able to get the component blasting done during the week and I painted everything immediately afterwards so the paint was dry for final assembly today.
04 May, 2019
Trevor and I worked on the Baja Bug update project today; we finished the IRS inner pivot installation, crack checked the IRS spring plates (old race car spares) and repaired the drive's side rear trailing arm we are using (a race car part that was damaged at the 2012 Baja 500 roll-over and used as a spare afterwards). Next, we'll take the old "spares" to Custom Aircraft Parts (my brother's shop) to bead blast them in preparation for paint. Once the paint is dry, we can begin the actual final install of all the new rear suspension components and get the car back on the wheels! Next will be the installation of the new "bus" transaxle - that will require fabricating new mounts and running a new shift linkage above the "tunnel" (we're not going to use a "10 degree mount" for several reasons).
27 April, 2019
Trevor and I spent the day removing the engine and "swing-axle" transaxle, then began fitting the driver's side IRS inner pivot before calling it a day. The project is moving along fairly quickly - we've done much of this previously when we built the race car so not much we haven't already seen....
15 April, 2019
Trevor and I spent all day on Saturday finalizing the front end on his Baja Bug update - the steering is installed and adjusted and we modified the fuel tank to fit around the new steering box. Trevor test drove the car around the shop area and says the steering works great - just like the race car before power steering. The fuel tank mods were challenging: we wanted to retain as much capacity as possible while eliminating the interference issues and we need it to be "leak free". In the end, we were able to fit the tank in the stock location with minimal loss of capacity. We leak checked all the welds before adding any fuel; it took several tries to close up all the little leaks but now, after a couple of days with fuel in the tank, we don't see any leaks. This is an area that we'll keep our eyes on for a while.....
I picked up our "new" shop lathe today - a 1960's vintage Logan Lathe. I need to wire in a "phase converter" so we can run the 3-phase motor off our "single phase" 220 power at the shop. Hopefully, that'll be fairly easy......
We've had a bit of a break from the Baja Bug update project - I spent nearly the entire month of March in Memphis learning a new airplane for work (Boeing 767) and we were waiting on SACO to manufacture and ship our somewhat unusual "offset input" steering rack. We could have purchased a standard "center steer" rack off the shelf but that would have forced some fairly acute steering shaft angles and the resulting potential for binding and excess "slop"..... The rack finally arrived just as I returned home from Memphis so we're back at work on the project.
17 February, 2019
Trevor and I have been steadily making progress on his yellow Baja Bug conversion; the link pin suspension conversion portion is essentially complete but we are waiting for the new steering rack to arrive so we can finalize the steering geometry. We are also awaiting the arrival of new front wheels/brakes so we can get the car back on the tires - his existing wheels will not work with "combo spindles". Soon, we'll have enough spare parts left over to build another car.....
04 February, 2019