Diesel Engine Troubleshooting

Bosch Fuel Supply Pump Intermediate Stroke Position

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As the injection pump camshaft continues to revolve, it forces the roller tappet of the supply pump outward, away from the injection pump, also pushing the plunger out. Fuel trapped in the suction chamber will open the pressure valve and enter the pressure chamber. This fuel will also close the suction valve on the inlet line. This stroke completely fills the pressure chamber so that it can empty on the discharge stroke.

FP K transfer pump during the intermediate stroke Bosch Fuel Supply Pump Intermediate Stroke Position

Written by Ed

September 3rd, 2011 at 2:29 am

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