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Home >> Chevrolet >> 1988 >> G 20 Van V8-379 6.2L DSL >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Oil Pump, Engine >> Dimension/Clearance Specifications
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Dimension/Clearance Specifications

Rotor Backlash -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Rotor To Body Clearance -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Rotor End Clearance
Note: Measured between pump cover mating surface & end of rotors using straightedge & suitable feeler gauges.
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Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Gear Pocket Depth -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Diameter -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Rotor Thickness -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Rotor Diameter -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.
Relief Valve To Body Clearance -
Note: Pump rotors & body are not serviced separately. If inspection reveals damaged or worn components the pump assembly should be replaced.