torque specs for 90 horse merc

buckshot481

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Mar 13, 2006
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if anyone can help i would greatly appreciate it. i am looking for the torque specs on a 1989 mercury 90 horse 3 cylinder. i need the rod torque, torque for the crank case and water jackets. any help will be appreciated. thanks, jeff. :confused:
 

buckshot481

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Mar 13, 2006
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Re: torque specs for 90 horse merc

if anyone can help, i am in the process of putting this motor back together and need these numbers. thanks again.
 

phatmanmike

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Oct 24, 2003
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3,869
Re: torque specs for 90 horse merc

connecting rod nuts- first torque at 15 inch pounds, the redo at 30 foot pounds.check rod cap alignment after 30 pounds, and if all is good, turn nut 1/4 more turns.<br /><br />crank case cover- fisrt torque 25 lbs, then second torque at 165 inch pounds. do the final torque in 3 small steps.<br /><br />manual doesnt say anything about water jackets, but ifyou are talking about the exjhaust manifold covers, then do this....180 inch pounds.<br /><br />all of this is per my trusty CLYMER manual, WICH YOU NEED TO BUY, YOU CHEEP AZZ!!! go spend the 25 bucks, man!!!
 

buckshot481

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Re: torque specs for 90 horse merc

thanks for the information and i don't need to by the manual now.
 

phatmanmike

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Oct 24, 2003
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Re: torque specs for 90 horse merc

but what if i told you all the WRONG specs.... just to make you want , er, need the manual....?
 

phatmanmike

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Oct 24, 2003
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Re: torque specs for 90 horse merc

but yes, those are the right ones! <br /><br /><br />now go get your own book, cheap azz!
 
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