Bosch PES inline pump

[t17wilson]

I'm working on a 700-B tractor that has sat for a LONG time. The crank will turn (by hand) just over 90 degrees. Having read about the injector pump sticking I didn't want to force it. I've taken the inspection window off the pump and the rear plunger seems to be stuck. I've also taken the long cap off the front and the fuel rack won't move. I sprayed it with penetrating oil several times over the last couple months and have been working on it several times a day the last week. From another post I saw about removing the screw and threading the bolt from the cover in the rack to have something to pull/tap on. Lightly tapping has gotten it to move slightly in and I've been able to pull it out just past where it was in the beginning. I've also taken the injector lines off and added penetrating oil there. Sorry for the long post but is there anything else I should try? Or just be patient and not tap on it too hard!

 

[Dieseltech]

First off, the RACK is not stuck, one or more PLUNGERS are stuck KEEPING the rack from moving. DO NOT beat on the rack, you will only damage the rack and/or plunger gear
segments. Any tappet that is down on the cam base circle, and that plunger is up away from the tappet is stuck. CAREFULLY use a blunt tool and see if that plunger will go
down against the tappet. If so, then crank the engine to get it back up again. Repeat as needed until ALL plungers FOLLOW the tappets, and rack will move using the
throttle lever. When the rack will move off/on, THEN it's safe to tighten injector lines and start engine.

 

[t17wilson]

Thanks Dieseltech, that's what I was thinking. But being on the engine side it's pretty hard to get to and I was worried about not being able to give it a downward strike. Is there a danger to striking it from the side?

 

[tomturkey]

I only have one diesel, a 400 Case. When I started losing fuel into the crankcase, I slowly disassembled the pump from the
block, marking things for reference, and boxed it up and sent it to DIESELTECH. That is how I deal with injection pumps. Those
things are way beyond my shadetree mechanic degree. lol gobble

 

[t17wilson]

Based on previous posts I've read here that is definitely in my thoughts! (If he's interested.) Just want to be sure it's not something really easy to take care of first.

 

[t17wilson]

It's been a long time getting to this point but here is the progress I've made. The injector pump and injectors were sent to Dieseltech for rebuilding and he did a great job.They have been installed and the timing checked several times. After bleeding the lines back in May I tried to start it but didn't have any luck. Had to leave it until a week or so again and had my BIL who was a diesel mechanic come by and go over what I had done. We double checked the timing again and bled the lines starting at the first fuel filter all the way to the injectors. When trying to start it it has good compression by holding your hand over the air intake and blows white smoke out of the exhaust which tells us that it's getting fuel. We can't get it to fire, maybe a little, but it will fire with a slight bit of starter fluid (I'm not big on using much starter fluid). So it's getting air and fuel but won't start. What are we missing? Thanks for any suggestions.