1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 217Get this manual

1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 217

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57 Crankshaft and Seal Rings Check seal rings for wearIf the seal ring is worn, the sides will be noticeably grooved by the crankshaftReplace all worn or broken seal rings
1 When installing seal