2001 Mercury Mariner 50-60HP Factory Service Manual, Page 8Get this manual
SPECIFICATIONS
NOTE: Manual start models are equipped with compression relief mechanism which will not allow compression testingCamshaft Dimensions Intake "A" Exhaust "A" Intake "B" Exhaust "B" Run-out Limit Camshaft Bearing Diameter "b" 1.2141.222 in(30.8331.03 mm) 1.2141.222 in(30.8331.03 mm) 1.0201.028 in(25.9026.10 mm) 1.0201.028 in(25.9026.10 mm) 0.0039 in(0.1 mm) 1.45411.4549 in(36.93536.955 mm)