1989 evinrude 15hp

[eula30]

Hi, Does anyone know what is the tightening Torques of the screws on the power head of this motor? (1989 evinrude 15hp) is it 80 LBS? I’m about to change the power head gasket but I don’t know the tightening torque. Any help I will really appreciated.<br />Thank you

 

[Walker]

Re: 1989 evinrude 15hp

I don't have the specs for that motor but it sure isn't 80 ft/lbs

 

[ezeke]

Re: 1989 evinrude 15hp

18-20 ft lbs.<br />Sequence: center right, center left, top left, top right, bottom right, bottom left.<br />Tighten again after running.

 

[RetNav]

Re: 1989 evinrude 15hp

eula30, My book, OMC Service manual, says to torque those bolts to 60-84 in. lbs

 

[eula30]

Re: 1989 evinrude 15hp

If I setup my torque wrench to 70 in. lbs. Is that Ok?<br />Thank you

 

[ezeke]

Re: 1989 evinrude 15hp

This will help on converting from in/lb to ft/lb:<br />torque conversion web site <br />Just to advise I have a 1984. My Head Bolts are 3/8". The water jacket has 1/4". <br />My manual (OMC) says 3/8" - 18 to 20 ft/lb or 220-240 in/lb.<br />Clymer Manual B732, Page 220, Line 39. "18 to 20" ft/lb. "1978 On"

 

[Walker]

Re: 1989 evinrude 15hp

I think he's talking about the powerhead base gasket ezeke

 

[ezeke]

Re: 1989 evinrude 15hp

Always a pleasure to make an A__ of myself, but thanks for the heads-up, Walker.<br /><br />If those are 1/4 inch bolts, 60-80 in/lb or 5-7 ft/lbs is the range.<br /><br />My apologies Eula30.

 

[eula30]

Re: 1989 evinrude 15hp

If I set my torque wrench to 70 in/lb. would it be ok?<br />Thank you