I hopped in the ol' CUCV and drove it to work Friday night. I lit it off to get some heat going and went back inside to get my stuff together. When I came back out to leave, I smelled fuel. I looked under it and saw fuel dripping off the right hand side of the oil pan, near the back/sump area. Popped the hood and eyeballed the injection pump real quick. Saw a drip, but said "F it" and went on to work.
On the way home that night, the lights started to flicker...then get real bright...then dim...then back to normal.
Of course, it was 34 degrees that night when I got home from work, but I looked it over and couldn't see much. I checked it out again in the daylight. The alternator was charging 14.8 volts, which is alright, but it sounded like a handful of crushed granite in a blender.
I then gandered at the injection pump and finally narrowed it down to the governor shaft. At first I thought (and was hoping) it was the throttle shaft o-ring and/or the bushing in the top half of the pump being worn out. No such luck. That would have been too easy to fix!
As luck would have it, the governor shaft has a depth adjustment and installs from the front side of the pump. The adjuster nut sits (almost) up against the back side of the timing cover. Lucky me, I get to pull the injection pump to replace a 35 cent o-ring! If I had the money, I'd be swapping out the whole deal for a competition VE pump from The Hungry Diesel. Alas, I don't have 1800 bucks to throw at it. I'd prefer to swap the pump because it idles down once it's at operating temperature, but it still runs damn good and hasn't let me down in 15 years. So, maybe later.
A Bosch DGK-121 seal kit is about 25 bucks and the rest will just be labor. I'll go ahead and reseal what I can since the pump will be off anyway. I plan to ditch the 3200 rpm governor spring that I previously swapped in it (stock was 2600
) for a 4200 rpm spring. RPM is just free horsepower!
As for good news, I kept the original alternator I had run on the motor after the swap. Luckily, I put it in a box and had wrapped it in a plastic bag. I'm going to pull it apart and snag the bearings, brushes, and whatever other parts I can use to fix the current ( pun...intended
) one in the truck. It's a PA Performance 136 amp Nippen-Denso, one-wire conversion. I actually still have the original invoice from when I bought it back in 2010. I may call them and see what a rebuild would cost or if they'd send me the parts. Either way, it should be free/very cheap to fix. Those Optimas are getting shit canned also. They've been dying for the last two years and they're four years old.
I also still have wheel cylinders, brake shoes, springs/hardware, and hub seals for the rear sitting in my other bedroom. I need to pick up some more DOT 5 brake fluid. I also plan to ditch the "weight sensing proportioning valve". They don't do their job and make the pedal feel like crap.
I guess if you ignore something long enough, it'll find a way to get your attention
Sorry for the long-winded post. Here's some pictures! I circled where the leak is located. Then a random underbody shot of a leaky wheel cylinder and an underhood shot.
View attachment 386679
View attachment 386680
View attachment 386681
View attachment 386682
I really wish I had saved the whole build thread on this truck when Wheelin Dixie shut down. It had a lot of tech, good pictures, and write ups in it. Oh well.