1977 70 HP Evinrude Head bolt torque

hawk200282

Seaman
Joined
Jul 26, 2013
Messages
53
Decided to replace the head gasket on my 77 70HP Evinrude.

Wanted to see if anyone here had the torque specs for the different bolts:

Thermostat cover bolts, head cover bolts, and the head bolts.

Also, what pattern should I use when I tighten the bolts? I was just going to work my way up and down from the center bolts.

Thanks in advance.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: 1977 70 HP Evinrude Head bolt torque

18-20 ft lbs on the head bolts. 60-80 inch pds on the other ones. Any bolts on the head, start from the center and work your way out in a spiral pattern.
 

hawk200282

Seaman
Joined
Jul 26, 2013
Messages
53
Re: 1977 70 HP Evinrude Head bolt torque

18-20 ft lbs on the head bolts. 60-80 inch pds on the other ones. Any bolts on the head, start from the center and work your way out in a spiral pattern.

Thanks alot! About what I was thinking but wanted to be sure. :)
 
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