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Home >> Mercury >> 1987 >> Topaz AWD L4-140 2.3L HSC >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Oil Pump, Engine
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Oil Pump, Engine

Rotor Backlash .010
Note: Maximum.
Rotor To Body Clearance .001-.013
Rotor End Play
Note: Measured between pump cover mounting surface and end of gear, using straight edge and feeler gauge.
.004
Note: Maximum.
Relief Valve To Body Clearance .0015-.0030
Relief Spring Pressure 15.2-17.2 at 1.20