overdue weekly update
I had been getting it ready for a trip out to Utah and had it packed when I decided to look under the hood one more time after I got home from work. I found the old 6-groove belt I had on it was starting to separate from the backing. I reused the old belt because I found a new 8-groove pulley and it was a little bigger so with the old belt being stretched it was a little bigger than the new 8-groove belt I was using. I knew it wouldn't last the trip so I tried getting the new 8-groove belt to fit again. After several tries I did get it on by removing the tensioner, slipping on the belt and reinstalling the tensioner by threading the bolt and turning the tensioner until the catch pin dropped in the alignment hole on the mounting bracket. I started it and found the belt jumping off the other pulleys and rubbing on the engine cover.
You can see in this pic where it would jump and rub.
Bummer... still wanting to leave that night I packed the car and we took off. I did get some great mileage in the car so the money I saved from fuel cost can go to fixing the problem. I got home and the next day I put my head under the hood to take a look. I thought the tensioner might be going bad but the spring still has good resistance and I had just replaced the bearings in it's roller last week right before the trip. There were two of them, sealed, and easy to knock out and pound in. The old bearings were a little rough and the new ones are smooth to spin. The only other factor is the new 8-groove pulley on the alternator. Only way to find out was to pull the alternator and have a look. I got the new pulley off (required a vice, allen head wrench, a 15/16" socket and vice grips) and got the old pulley from the original alternator and compaired.
The old one has a build in spacer that pulls it out from the fan face. The new one was flush so I needed to space it. This is the new pulley flush against the fan face.
When I pulled the new pulley I saw they (I had the alternator shop where I bought the pulley test my junkyard cs-144 to make sure it was good and they put the pulley on to do that) had put the smaller washers under the pulley to get it flush with the fan since the fan has a recess. I found a thick washer laying around that happened to fit and that happened to be similar in heigth to the build-in spacer on the old pulley.
Here's the pulley spaced off the fan face so that it aligns with the other pulleys on the engine.
I put the alternator back in and visually tested the belt without the tensioner in place and it looked better than before. I also picked up the next size larger belt so I went from a 080537 to a 080545 (Napa numbers) which was about 3/4" longer.
I put it all back together and started it up. Didn't slip off and seems to work fine now. I tested for charge and got 14.15V so the alternator excites fine. To improve that voltage I could make a direct line from the Battery terminal on the alternator to the positive terminal on my main battery
CS-144 Delco-Remey alternator installed on the Cummins 4BT.
I cheated for wiring and just purchased an adapter (SI to CS) since I had already interfaced the toyota wiring with the SI stuff. Since the FJ60 has a charge light I used the adapter WITHOUT the resister in it. I read that LEDs don't provide enough resistance so I pulled the bulb and put in a regular bulb to get the right resistance so that the CS alternator would charge. The blue and green wires are the adapter. Wiring it isn't difficult but the adapter was only $13 and I had thought I was on a time crunch to get it ready for the trip so it made it very easy to hook up. If you haven't converted the toyota to an SI series alternator this adapter will do you no good and you might as well wire it up yourself. There is plenty of support on the web to figure it out.
Here's a pic of the speakers in back. Since I'm lifted and the majority of my rear window looking is downward the small amount they hang down doesn't impede my view.
When drilling I found I actually went through the back side. If I were to do it again I'd make a mounting plate that spans the the whole width with a cut out for the light and mount the speakers to that. There is a gap between the inside and outside sheetmetal and if you go high enough with shorter screws and more of them it would make a stronger mount then my set-up. I'll need to put some goop on the screws to keep the water out. These aren't normally visible. I had to move the weather stripping on the top hatch out of the way to get the pic.
I cleaned up the hydroboost unit and MC I got from the JY and got it installed. I had to cut off the eye and thread the shaft for the clevis to attach it to my brake pedal just like I did with the first HB unit. When I pulled this from the junkyard I made sure it had the same o-ring fittings on the booster so that I could reuse my o-ring to AN adapters. I knew the MC was a 1 1/8" bore and figured I could try it out. Just reiterating that I'm replacing the booster because my old one was starting to leak. Bench bled the MC and got everything else bled and adjusted. This was the difference I was looking for. The brakes are MUCH better now and slow down is great. I have more than enough pedal travel so this works well.
My
official brake opinion due to my experience with this brake system: Front 4runner calipers, rear discs using front FJ60 rotors and calipers, running no proportioning valve using a hydroboost unit from a chevy astrovan with a 1 1/8" MC, stopping a lifted FJ60 riding on 38" mud tires.
1 1/8" MC bore offers great braking with good pedal feel and minimal to normal travel on the brake pedal.
For those who want more touchiness and grab could opt for a 1 1/16" MC as there is enough travel on the brake pedal to accomodated the needed throw in a system set up like mine.
I may try out a 1 1/16" bore (if it can be found) in the future if this MC gets tired but for now I am happy with the performance I am getting.
Got some cheap tube and routed my breathers to the engine bay. I ran the front and rear axle together and ran the doubler and tcase together using t-fittings. I'll get little filters for them eventually but for now they are open ended.
Rear
Front
I checked for tightness and adjustment.
- wheel spacers
- axle ubolts
- top and bottom knuckle bolts
- alignment, I still didn't have enough toe-in so I put in some more. Steering was heavy and would grab irregularities on the hwy. Steering is now lighter, easier to turn and tracks better down the road.
- wheel bearing preload was a little too tight so I readjusted those. I was getting a pull to one side.
I felt like going into auto piolet yesterday evening so I gave it a wash and started going over the paint with a claybar. Twenty plus years is a lot of build up and I found that using a claybar will remove soot stain from diesel exhaust.