1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 425Get this manual
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CAMSHAFT BEARINGS REMOVAL
tOlvard center of block( Figure 11)
-O TE: This pro edure base on removal of bearings
nearesl cenl er oen{!ine fi rs!Thusminimum num ber of turn are