OMC Stern Drives And Motors 1964-1986 Repair Manual., Page 514Get this manual
Camshaft Bearing NoI bearing Location
CRANKSHAm BEARINGS
302 CID I75 HP 19i7-79
302 CID IWHP 1977-79
351 CID 235 HP 1977
250 HP 79
0.0050-0.0200 Distance inches that the front edge of the bearing is instaIIed towards the rear from the front face of the cylinder bIock,
Connecting Rod Bearings To Crankshaft Clearance Desired Allowable
W Thickness Std
0.000 0.000 to 0.0020
to 0.00 I5
0.0008-0.0026
Main Bearings To Crankshaft Clearance NoI desired No, allowable