4000 diesel won't start

Anonymous-0

Well-known Member
Have 64 4000 sos that sets in a barn. Had tractor for over 40 yrs and know a little about them. I can't get any fuel to come out the injectors. I opened the throttle, bled the filter, and cranked the engine and nothing spits out the injectors. I usually start it once a year but never run it out of the barn. The fuel is turned on at the tank. Any suggestions.
 
Normally,I'd give a tow, but you can't on an SOS!

How's the fuel? It can't be very good if it only starts once per year! Is the fuel making it to the pump? Did you bleed the pump? Is the metering valve stuck in the shut off position?

Any of those could prevent fuel delivery. Your governor retainer ring is likely shot as well and particles of it lodged in inappropriate places in the pump.
 
Thanks Larry. I siphoned out the old fuel and put a gal. of fresh fuel in. The fuel is getting to the pump so the problem must be the pump as you say. Not sure how to bleed pump but will look into it. Thanks again.
 
Pull the lever wide open and peck on the top of the pump then try it. May be a stuck metering valve.

If that doesn't work clean around the pump top cover and then remove the top cover and see if the metering valve is moving. Turning when the throttle is moved. If it is stuck in one position try moving it left to right to free it up.

If you get it moving and running never shut the engine down with the throttle but rather put the transmission in 10th gear and with the brakes held release the inching pedal to choke it down. This way the metering valve will not be moved to closed position and next time you try to start it you'll have fuel going to the injectors.

Roosamaster pumps don't like to sit up for long periods with the metering valve closed.

Zane
 
(quoted from post at 12:13:44 12/04/12) Thanks Larry. I siphoned out the old fuel and put a gal. of fresh fuel in. The fuel is getting to the pump so the problem must be the pump as you say. Not sure how to bleed pump but will look into it. Thanks again.

Please define "fuel getting to pump" it needs to be a fast dribble for 30 seconds, otherwise you could really have a blockage that results in nothing to pump after two revolutions.
 
Took line off pump from the filter. Going to try some of the ideas I received tomorrow, Good flow out the end of line.
 

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