big 40 diesel

[Lmancates]

I have a older miller big 40 diesel it has a continental engine in it.... Well it won't start the shut down solenoid isn't getting 12 volts I think I gave it 12 volts with a jumper wire but it still won't start... The welder sat for a really long time I drained the fuel out and put a filter on it and bled the lines and it still won't start. I'm stumped any advice would help thanks

[Tryagn5]

I have a older miller big 40 diesel it has a continental engine in it.... Well it won't start the shut down solenoid isn't getting 12 volts I think I gave it 12 volts with a jumper wire but it still won't start... The welder sat for a really long time I drained the fuel out and put a filter on it and bled the lines and it still won't start. I'm stumped any advice would help thanks

There was a long thread on this exact topic....but. if you are 100 percent sure you have good fuel to the pump.. 12 volts supply...and proper ground to the fuel solenoid. Either the solenoid is stuck closed in the pump...or the drive ring inside the pump broke. Try gently tapping the top of the fuel solenoid /pump area.
Also that pump can have an internal or external solenoid...take a picture so i can see. The internal solenoids must be installed correctly or that engine will run away. External just screws in. Unscrew it remove the plunger and screw it back in. Will start but have no shutoff. Will have to lug or choke off to kill it.

kevin

[gnforge]

big 40 diesel

Another thing to consider. is the pre heater working and did you preheat before try starting.

[M J Mauer]

Welcome to the forum.