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70 hp evinrude 1977 changing thermostat

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wen4222

Member
"how do you change the thermos

"how do you change the thermostat in 70 hp evinrude, where is it located and how hard is it to change."
 
"The thermostat (#37)

"The thermostat (#37) and pressure relief valve ( #101)are both located under the funny shaped cover at the top of the cylinder head cover.
See DIAGRAM
and PARTS LIST

You'll need a new cover gasket #27, thermostat gasket #100 and maybe relief valve grommet #78.

Provided you don't break any of the cover bolts it looks easy"
 
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