not getting fuel

Joe Sixpack · May 17, 2012

I have a '53 Major Diesel that has been sitting for about 3 years. I cannot get it going. I believe I am bleeding the system correctly but am unable to get any fuel out of the top of the injector lines or out of the injectors. Everything seems fine up until that point. What am I doing wrong or is wrong with it?

Jack Mayers · May 17, 2012

Joe,
If it's like my 57 there is a 1/2" bolt on the front side of the injector pump, it's the bleed screw. Loosen it and hand pump the fuel pump with the little handle on the underside of the glass bowl. You should feel some resistance when you pump it. After fuel comes out of the bleed screw close it. If it still won't start loosen the fittings at the injectors and turn it over until you see fuel. Hope that helps. Also if your getting fuel as far as the bleed screw and no farther it may be the injector pump itself.

Curtsat15 · May 18, 2012

Sounds like you're getting fuel to the pump but not the injectors? Disconnect the lines from the injectors and crank the engine. If you get fuel through all the lines, GREAT! If none or only some, I would suspect the lines are plugged. Disconnect them and clean them thoroughly. Put them back on IN THE SAME ORDER THEY CAME OFF. If still no fuel, it is time to look into your pump, and that is beyond my knowledge. Hope this helps!

Robert Major · May 18, 2012

Hi If it is bled through correctly and still no fuel at the high pressure lines. clean the injector pump real good. take the plate off the side ( you do not want grit dirt or grass /straw blowing in the pump).
pull the stop control rod and see if the rod that runs along the bottom of the housing moves, if not the stop control is stuck it should move back and forward free if not try lubing it with wd 40 or similar and try to free it be carefull as things will break easy in there do not move the adjusting arms as this will throw your pump out of calibration. if it is not stuck there turn the motor and see if the 4 pump elements move up and down. they should go about 1/2 to 3/4" from memory. if they do not move it is probably time to go looking for a rebuild or good used pump. I have messed with them and freed them. I have been doing it for years. I dont know your technical level and dont want you to go in with a hammer and wreck your pump completely . see how you get on and let us know.
Regards Robert

Joe Sixpack · May 19, 2012

I will have to try that. Removed the lines and did not get any fuel out of the injector lines at the head or at the pump when turning over the engine.

not getting fuel

Joe Sixpack

New User

Jack Mayers

Member

Curtsat15

Member

Robert Major

Well-known Member

Joe Sixpack

New User

Similar threads