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Author Topic:   Torque spec for engine mount bolts

JoeH posted 05-26-2002 02:22 AM ET (US)
There is always much discussion about repowering, engine brackets and so on but I can't find any mention of how tight these thru bolted items should be. I want to remove my engine to do some transom work and reinstall as it is. Snug, tight, breaker bar bust a gut? It's a 150 Johnson on a 92 Outrage 19. Thanks for your help, Joe
aubv posted 05-26-2002 08:30 PM ET (US)
I don't think you load the bolts, in the traditional sense, when mounting an outboard. I think that making them tight and checking after some use would be what I would do? I would put some kind of anti-seize lubricant on all of the mating surfaces of the nuts bolts and washers. If you don't have any anti-seize a light coat of oil would be better than nothing.
JoeH posted 05-30-2002 01:30 AM ET (US)
Thanks for the help, Joe
whalerron posted 05-30-2002 08:42 AM ET (US)
You want those bolts tight but you don't want to crush the transom either. If the transom is good, you should be able to feel the bolts get tight. If the bolts are stainless, use an aluminum based anti-seize on them to prevent gauling.

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Author	Topic: Torque spec for engine mount bolts
JoeH	posted 05-26-2002 02:22 AM ET (US) There is always much discussion about repowering, engine brackets and so on but I can't find any mention of how tight these thru bolted items should be. I want to remove my engine to do some transom work and reinstall as it is. Snug, tight, breaker bar bust a gut? It's a 150 Johnson on a 92 Outrage 19. Thanks for your help, Joe
aubv	posted 05-26-2002 08:30 PM ET (US) I don't think you load the bolts, in the traditional sense, when mounting an outboard. I think that making them tight and checking after some use would be what I would do? I would put some kind of anti-seize lubricant on all of the mating surfaces of the nuts bolts and washers. If you don't have any anti-seize a light coat of oil would be better than nothing.
JoeH	posted 05-30-2002 01:30 AM ET (US) Thanks for the help, Joe
whalerron	posted 05-30-2002 08:42 AM ET (US) You want those bolts tight but you don't want to crush the transom either. If the transom is good, you should be able to feel the bolts get tight. If the bolts are stainless, use an aluminum based anti-seize on them to prevent gauling.