1989 12v pump
#1
1989 12v pump
Can anyone help with a fuel pump problem? I tried to take the diaphragm out to turn it, it will not come out, it will move up and down, but will not come completely out. Also what is the unit mounted on the lower side of the pump that has a wire connection on it?(fuel heater, switch)? I just put this engine in a 99 Ford SD F-350. Thanks
#2
Sometimes the pin will get stuck in there if its already facing towards the deepest part of the groove, the needle that rides on it gets hung up on the lip under the "cone", try turning it some to push that needle away with a shallower part of the groove
And i think the unit your referring to is the cold start advance
Theres a thread up near the top of the list called "1st gen sticky" you will find just about everything you'll want to know in there, its a compilation of all of the tech and how to's that have come through the forum, like a 1st gen encyclopedia
And i think the unit your referring to is the cold start advance
Theres a thread up near the top of the list called "1st gen sticky" you will find just about everything you'll want to know in there, its a compilation of all of the tech and how to's that have come through the forum, like a 1st gen encyclopedia
Last edited by DirtyDozen; 11-07-2009 at 02:49 AM.
#3
Hi everyone, I got the pin out, turned it, ran the star wheel down, adj. the smoke screw, none of it changed anything, no smoke , no more power, it is very slow on take off, not much power on hills. Do I need inj. pump rebuilt, or is there something else I can do? I have been a mechanic for 30+ yrs. this is the first time working on a 6b Cummins. Thanks for your help.
#4
#5
the full power screw is located in the back of the pump inbetween the block, kinda a pain to get to. give it about a half turn in an it should make a rather noticeable differance
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