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Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 28102
Experience:  Technician turned service manager on multiple lines of trucks and engines, used in industry.
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MF 165 diesel will not start. Will run few seconds on

Customer Question

MF 165 diesel will not start. Will run for a few seconds on either. New filters installed. injectors checked at dealer. injector pump checked at dealer. Compression check ok. injector pump timing checked. fuel lines removed and cleaned. bled system numerous times and checked fuel going to injectors all ok. puffs white smoke but won'y start unless you give it a little either and then quits again. I'm stumped, tractor mechanic is stumped. Help.
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Curtis B. replied 1 year ago.

Compression needs to be over 300 psi. But has tractor been running? If you loosen high pressure line at the injector nozzles, does the fuel squirt, or just dribble? If just dribbling, the injection pump is not in the run position. I assume the engine kills with kill cable? ave you removed the return line check valve on the injection ump and see if the engine will start with valve removed? If return is plugged, governor will keep fuel passage from opening.

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