Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 8Get this manual
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SPECIFICATIONS
Crankshaft to Oil Pan Bearing Clearance Camshaft to Oil Pan Bearing Clearance Free Length (IntakeExhaust) "a" Tilt Limitb" (IntakeExhaust)
0.00060.0015 in(0.0150.040