Join Date: Dec 2011
Location: Ontario, Canada
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Re: Keel bolt torque values ????
One of the routine maintenance chores that I do in spring is to tighten keel bolts. I use a 3/4" socket wrench with a 1 1/2" socket and a pipe extender. Then I torque as much as I can. It's a keel. They're big honkin' bolts. As much torque as I can apply is what I want.
With that said, Sabre recommends 90 ft lbs torque.
Well I did just that - bought a 1 1/2" socket and a 3' breaker bar - was told that no way would I be able to torque past and most likely not even to the 350 ft. lbs spec. of a 1" bolt. My keel has three (3)1" bolts with 1 1/2" nuts - was able to turn each one an additional 1/2 to 3/4 turns. The keel also has two (2) bolts with 1/2" nuts the specs suggest 90 ft. lbs of torque - I have a cheapy torque wrench and to my surprise the nuts of these bolts turned several times before reaching 90 ft. lbs. NOW I'm a bit concerned because just because the specs for these bolts state that they may be torqued to specified values doesn't necessarily mean that for keel applications they should be maxed out - or does it
Years from now you will be more disappointed by the things you didn't do than the ones you did do.