On Time

I bribed Bennett with a T-shirt. Well, a T-shirt and an R-series doorhandle. Actually, a T-shirt, doorhandle, and donuts.

Realizing I’m way over my head trying to sort out the timing issue on Darth Haul, I figured it was time to bring in the big guns. Bennett has years of experience with all manner of different vehicles, and I figured that knowledge was what I needed to figure out what the hell is happening. I got all of my tools prepared, pulled the Scout forward and was finishing up installing a replacement hydraulic line to the clutch when Bennett walked down the driveway. I already had the engine monitor and my timing light hooked up, and over our first donut I explained all of the symptoms and what I’d done to date. We puzzled over things for a bit, and he wisely suggested starting with the basics: verifying the #8 cylinder was at TDC, then making sure the rotor was pointed in the right direction. We used my compression tester to bump the engine, and then went to the old-school method where I laid underneath and turned the crank bolt by hand until we hit the compression stroke.

When we found that, we looked at the timing mark on the flywheel and found that where it should have been pointing at 0, it was actually somewhere past 25˚ advanced, which was….very wrong. We verified we were at TDC again, made sure to mark where the rotor was pointing, verified the plug wires were all in the right order, and scratched our heads a bit. Then we tried cranking the truck over to see where the timing was. It was, of course, very bad, and running choppier than it had been before, blowing clouds of white smoke.

Shutting it down, we considered pulling the distributor and moving it back a tooth, figuring maybe the balancer had slipped or the distributor had been stabbed erroneously, but Bennett scratched his head a little more and started looking at the carburetor. We verified all the connections were correct, put a hose on the EGR valve (which was plugged off, as was the port on the back of the carburetor) and started the truck again. This made it happier, and while it was still choppy, it ran a little better. Bennett messed with the distributor while I read out the RPM, but we couldn’t get it to smooth out or calm down.

We then started fooling with the metering jets on the carb, and Bennett was puzzled at the fact that they were only open a half a turn while the engine was obviously running very rich. He then asked me if I knew how much pressure the electric pump was putting out, which I didn’t. He thought about that for a minute and suggested that maybe the electric pump was overfilling the bowl, which was why the engine was running rough. He’d had this very problem in a Mustang years ago, and knew that the Holley 2300 doesn’t like anything above 4 lbs. of pressure. So we rigged up a vacuum feed to the carb with a squeeze bottle full of gas and used that to fill the bowl. That seemed to make a difference, and then we carefully started dialing in the proper metering and the idle circuit. In a couple of minutes, we had the RPM down to about 800 and the engine running smoothly. He put the timing light on it and found that it was only 15° advanced, which was a huge improvement over where it had been before. Letting it idle off the gravity feed, I was amazed at how much better it sounded and smoother it ran.

Grinning, we both stood back and let it run for a bit until it ran out of gas. He had work to do at home, so he took off at about 2 o’clock, and I got Finn to help me bleed the brake system one more time. Then I went to the basement, set up my tools on the workbench, and started rebuilding the Carter fuel pump. This is the original pump off the truck, and should allow for the proper fuel pressure going to the carb. I followed the directions in a YouTube video posted by the company who made the kit, and found it very easy—almost meditative. With the football game on over my workbench and a cold beer next to the toolbox, it was a nice way to spend a Sunday afternoon. The whole pump is now ready to go, minus a fuel filter, which is at the local Napa to pick up. Hopefully tomorrow afternoon it’ll dry out and I can stick it in place during my lunch break.

Posted on   |   by bill   |   2 Comments on On Time  |  Posted in Carburetor, Friends, Travelall

Brakes: Check

After a couple of weeks of fits and starts, I focused on the front brakes of the Scout Saturday morning. I’ve been held up to date by incorrect or missing directions on how to disassemble the locking hubs on the front axle, the roemoval of which is required for getting the rotor assembly off the truck. All of the various service manuals talk about a particular snap ring that needs to come out before pulling the hub assembly out (at the risk of dropping a handful of roller bearings all over the driveway, a terrifying thought) but I could not identify or find this snap ring anywhere. Finally, I decided to chance it and gingerly pulled the hub assembly off—and found that there was no snap ring and that the inner gears came off with the outer assembly.

With this out of the way, it was easy to remove the caliper, pull the rotor/hub assembly off, and pounded the studs out from the back side of the old rotors. With a hammer and socket extension I pounded the studs into the new rotor assembly, and put everything back on the truck. The driver’s side went just as easily, although the locking hub mechanism there didn’t have the same washer/snapring holding the gears to the outer assembly. Looking it over, I don’t think that makes a difference, so I put it back the way I found it (it’s worked just fine for 17 years) and buttoned up the wheels.

Out on the road, the brakes feel very good: they’re even and don’t immediately pull to the left side, which is a huge improvement. There’s a noticable difference in the pedal feel—before, the brakes were very close to the top of the pedal, where now there’s more throw before they engage—but I like that. It’s going to take a little getting used to, but I’m really happy I tackled this and did it myself.

In other news, I posted four new designs to the Threadless store. I’ve been sitting on the two Scout 800 designs for a year or more, for reasons I can’t remember. The Slowflake design is in honor of Brian’s Scout project, and the Dugan’s Beer bottlecap is for myself. I’m noodling with some new ideas for Slowflake after the EV conversion, at which time I’ll create another design.

 

Posted on   |   by bill   |   Leave a Comment on Brakes: Check  |  Posted in Brakes, Design

Project Slowflake: Day Five

Here’s the fifth video in the Project Slowflake series, where I went over to Brian’s for two days to hook up the battery to the power pack with the aftermarket wiring harness, and test it out to see if it would run. When we sorted that out, we cracked the battery pack open and pulled the wiring harness apart from there. With that done, we made a bunch of measurements and started planning out how to organize the batteries in the truck.

Posted on   |   by bill   |   Leave a Comment on Project Slowflake: Day Five  |  Posted in EV Swap, Friends

Weekend Update

I got the driveshaft back for the Travelall on Thursday. They wound up completely rebuilding what I brought them: they put a new yoke on either side of a larger driveshaft and connected that to the original slip shaft from my truck. The old driveshaft was 2 1/2″ in diameter and this new one is 3″ so there’s some extra beef. I hit it with some self-etching primer and black paint on Friday afternoon and let it cure in the sunlight. Saturday morning, after running some errands, I crawled under the truck and put it back in. This was straightforward, and when it was done I took her for a run around the block. I wound her up as fast as I could close to the house and it looks and feels like the vibration is gone—which is excellent news. I felt so good about it, I took the truck out three times over the weekend to run errands.

Then I put the Scout up on jack stands and started tearing into the hub on the passenger side in order to swap the rotors. All of the videos that I have seen talk about taking the faceplate off, then pulling a snap ring out before removing the outer section of the housing. None of the videos show exactly where that snap ring is, and I don’t see it on my hub anywhere. I pulled the driver’s side off to see if I was missing something, but that looks exactly the same as the passenger side. My spare hub is a completely different design, so I can’t use that as a baseline. So I put the whole thing back together to cogitate on it a little longer.

Doing some organizing in the garage during the weekend, I went looking for some weatherstripping and stumbled on something I forgot I had: a used speedometer cable from the green truck. As soon as I saw it, I wanted to slap myself in the head, because it would only make sense that I would save something like this. Brand new, these cables are $60, so this was a great find. I cleaned the grease off it, filled it with silicon spray and put it in the truck. The needle hops around a bit, but it’s working, and the odometer spins, which is great news, because now I can track gas usage again.

Another quick thing I looked at were the locks on the lockbox under the rear seat in Darth. I’ve had these finger-tight since I put them in, and now that the truck is on the road I need some secure storage. Both sides have needed adjustment since I put them in. The driver’s side needs a new slot to be cut into the side of the box for proper alignment with the key, and the passenger side needs a longer catch made for the lock mechanism. I think I’m going to draw up a design and have SendCutSend cut me two new ones instead of trying to cut and fabricate one here. Along with that, I have two modifications to make to the C-series cupholder I designed—I want to increase the diameter of the cup cutouts by at least 1/2″ to allow for some rubber bumpers around the edge, add a little more height to the gusset at the bottom, and have them cut the two bolt holes for the seat hoop. So I’ll gang those two orders up and maybe save a little on shipping.

Posted on   |   by bill   |   Leave a Comment on Weekend Update  |  Posted in Brakes, Repairs, Travelall

Wednesday Musings

Back at work, I’m sitting through some training sessions for new operations software and multitasking while they go through stuff I’ll never need to know, so I’ll list out some updates here while I’m thinking about them.

I dropped the driveshaft for Darth off at a shop in Baltimore on Monday. The quote to fix it is a bit more than I was expecting, but I’m not going to find one of these just laying around a junkyard, so you gotta do what you gotta do. The shop caters to the large trucks in this area and the guy I talked to was sitting in front of an industrial lathe the size of my car, which gave me a good vibe.

The next big thing I want to tackle are the front brakes on Peer Pressure. I can’t find a shop around here who will touch her— I keep hearing, “We don’t work on anything over 20 years old,” which makes me nervous for the 19-year-old CR-V in our driveway, but I digress: I’m gonna have to figure this out myself. There are YouTube videos, of course, in varying degrees of quality, for removal and installation, and I’ll have to study these for a while before attempting this myself. I think the only thing I’d really need is a large 2-1/16″ socket to take the big retainer nuts off, and I found one on Amazon for $14 which will be here Friday.

Something I’ve been curious about ever since I got the new PT Cruiser seats is a little switch on the driver’s side. I’ve never known what this thing could be, so I did a little sleuthing this morning and found that the seat height is adjustable.

Which makes me wonder if it’s locked in a higher position than normal. I’m gonna put 12 volts to the switch and see if it will go down at all.

 

Posted on   |   by bill   |   Leave a Comment on Wednesday Musings  |  Posted in Repairs, Seats