1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 487Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 487

CRANKSHAFT REMOVAL 1Drain block nd crankcas oi lDis con nec all ho es 2Remove en gin from boat3Remove belts and crankshaft
ed in thi sect ion CLEAN ING and INSPECTION ed air2M asure main bearing journals and cran kpin dimension with micrometer
for out-of-roundtaper or under ize (see pecifications")3Check cranksh aft for runout (by supporting at front and rear main
be ar in journals in "Y" bl ocks) and che at front and rear intermcdia te ourn ls with dial indicator (see" pecifications"
)' 4R eplace or recon dition cranksh aft if not meetjng specifications this sectionIf bearing clearances ar atisfactor apply
light coat of oil to jou rn als and in gs4Install all be rin ca ps and bolts Torque all main bearin cap bol to pe ci fi ca
tionsWhen ti!!htening rear main bearin" cap, torque bolts 10 to 11 ftlbsfirstthen tap nd of ranks ha ft to th rea with lead
hammer (this will locale be rin cap an bearing)T hen tap crank haft forward (this will line up both upper and 10 er rankshaft
bearing thrust surfa l;)C eck ra nkshaft nd pla by forcing ra nkshaft to its extreme front positionCheck at fr on end of