1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 506Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 506

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VA.VE SPR:NSQ UA E"

Checking Valve Spring Squaren ess

coordinate facin valve seat witli refacin yalv ce so that finished ea and valve face are co ncen tr ic, nd pe 'ified int