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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28889
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Long garden tractor 30 hp: what causes a diesel engine to run

Customer Question

what causes a diesel engine to run away and produce clouds of white smoke even after the switch is turned off
Submitted: 2 years ago.
Category: Small Engine
Expert:  Curtis B. replied 2 years ago.
Welcome to JUST ANSWER small engines, let me try to help you !! Engine run away is caused by one of the injector plunger and bushings in the pump body to stick, and keep the fuel rack from moving. With the fuel rack not being free, the governor has no control. To repair the injector body/injection pump has to be removed and the stuck parts replaced.