I have a 99 25 hp mercury outboard. I blew out the exhaust manifold gasket and now it is leaking water. I ordered the new gaskets and got a service manual. The service manual said torque the bolts to 140 ft lbs in sequence. Doesn’t 140 ft lbs seem like a lot? My torque wrench only goes up to 80 ft lbs….any opinions would be appreciated.
It’s probably inch pounds
I would say definitely inch pounds. If your wrench goes low enough you can get by with just goin to 11.6666666 (or 12) foot pounds. I am not a certified mechanic but I have worked on several OMC outboard that is how I have installed several gaskets over the years with out failure. YMMV.
140 ft pounds-goodbye threads.In a similar part(Yamaha),it calls for about 9 ft lbs final torque.Many call for a 2-step torque sequence.Also check part for warp-age before reinstall.
Mis-print??? Mis-read??? 14.0 ft-pounds???
most definitely inch pounds !! it could of been a misprint as said above but most often anything under fifteen pounds feet is read in inch pounds .
edit to ad, to figure inch pounds divide the number by 12,IE, 144 inch pounds = 12 foot pounds.
and there is another way read it pounds inch or pounds foot and that can make it confusing for some.
You must be logged in to reply to this topic.
