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Home >> Pontiac >> 1971 >> GTO Base, 6.6L Eng, Eng CD WS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Mechanical Fuel Pumps >> Testing Fuel Pump >> Volume (Capacity) Test

Volume (Capacity) Test

For Specifications see " Figure " in appropriate TUNE-UP story. 

Use same "T" fitting and vent valve line as for Pressure Test. Crank or run engine at specified RPM with hose from vent valve placed in a one pint or quart container. Open vent valve and note time required to obtain specified amount of fuel.

Fig 1: CHECKING FUEL PUMP VOLUME
G09340798Courtesy of GENERAL MOTORS COMPANY