No start after VE resealed for fuel leak

[DBraunig]

Helping a friend with a fuel leak at the back of the pump. 89 d250 6bt. This truck ran fine before, just leaking fuel at the rear head. I pulled the pump and changed the rear seal o-ring only.



Now the truck wont start, kind of acts like it wants to hit, but it won't. Plenty of fuel out of the lines when i bleed them. The tailpipe is pushing a lot of black smoke out during cranking almost in sync with compression stokes. I checked the keyway on the pump (fine).



Tonight i pulled the pump back off and opened the back up to see if i had something wrong, but it looked right as far as i could tell . Reinstalled the pump, rechecked the keyway, same story..... lots of black out the tail pipe when cranking, kind of hits but won't start, plenty of fuel at the injectors.



Then i thought maybe the injector pump gear jumped a tooth when i pulled the pump. So i took the front cover off... ... . dot to dots on the crank/cam and dot to "e" on the injector gear



I sure would appreciate any input from some of you VE experts. Whatever is wrong here, i did it, i just don't know what. This truck ran fine before, just leaked fuel



Thanks, Dave

 

[dpuckett]

When you took the pump apart, did you put the plunger back in with the little tab/ knob lined up right? I forget exactly what it's called, but if you dont get it lined up on the shaft with the key on the pump, it wont fire. It is round, about 1/8" in diameter, and on the back side from the cam plate asembly. Make sure it's lined up with the keyway. Guy at the local shop told me that.



Daniel

 

[DBraunig]

Daniel,



Are you talking about this pin in the camplate? I never removed the camplate, but i didn't check it to see if it is in line with the pump shaft keyway. I guess it could have moved during disassembly



Dave

 

[DBraunig]

I got it I had the control collar in backwards, so it wasn't passing the helix to relieve at the end of injection





It runs good,



Thanks Daniel.



Dave

 

[dpuckett]

Yup, that was the exact pin I was referring to.



Daniel