This weekend, I installed the 3200 rpm governer spring, turned the pump up the rest of the way, and put it all back together. I primed the lines, and surprisingly it worked right first time, no need for any other adjustments. Wow what a difference, I could actually break the tires loose on a dry road from a standing start. I took it out for a run, and I chickened out at 95+ mph and still accelerating strong. I gained about 2 psi boost, now up to about 16 psi. EGTs sky rocketed, but didn't get to 1250F. In third gear I maxed out at 85 mph at 3300 rpm. Great.

Then I had to take the better half shopping for food. Half an hour later coming out of the supermarket parking lot, the truck abruptly quit, right in the middle of the intersection. Had to get it towed to my favorite garage since I'm going out of town tomorrow night, and I'm going to need it for the end of the week. Problem is, while they're very good mechanics, they're not diesel mechanics.

When I still had access to it, it cranked like crazy, but wouldn't start. I still have a half tank of fuel. I cracked the fuel line at the block, and used the priming lever, but the lever seemed to not want to pump. So I bumped the starter, still didn't want to pump, then I hit it again and it felt to have nearly full stroke, and some resistance. but then it took a lot of pumping to get fuel out, and then not much. If I crack the injectors, I don't get anything, then I suddenly got a spurt.
Didn't have a multimeter to check the fuel solenoid for voltage, but I did make and break the connections a few times, in case I had a bad connection. No difference. Strange that it quit in mid stride so to speak. I would have thought it would have spluttered a few times first, but one minute great, then nothing.

My thoughts are that it could be an air leak, a bad solenoid, a failed lift pump, and last but worst, bad injector pump.
Anyone have any other thoughts that might help, and that I can pass on to the garage?

Thanks a bunch
John

 

Is there any chance that you knocked loose the wire that connects to the fuel solenoid?

Try putting pressure through the system with a low pressure air pump at the filler neck. That will let you find any leaks. I am guessing that there is something really simple that came loose or didn't get tightened.

Good Luck

 

That could very well be. I didn't check for presence of voltage at the time, because I didn't have a meter with me, although come to think of it, I could have left the ignition on and pulled the connection. The solenoid should have clicked when remaking the contact. Duh!

I hope it is something so simple (and cheap)

John

 

You were right Smokee, they found a broken wire inside the connector on the solenoid (only thing I didn't get to check). Said it runs great now. Now I can spend that money I saved on the injector pump for some other mods.

Yes dear, ............ of course it's necessary.

John

 

Glad to hear that all worked out.