Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 161Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 161

CYLINDER BLOCK AND CRANKCASE
Measuring Clearance Between Inner and Outer Rotors "A"
Standard Value 0.006 in(0.15 mm) or less Out of the Limit If 0.008 in(0.20 mm) or more requires replacement

Measure Clearance Between Outer Rotor and Body "B"
Standard Value 0.0050.008 in(0.120.20 mm) Out of the Limit If 0.010 in(0.25 mm) or more requires replacement

Measuring Height of Oil Pump Outer Rotor

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