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Cooling sistem

J

jfaz

Member
"I HAVE 1981 JOHNSON M#J140TLC

"I HAVE 1981 JOHNSON M#J140TLCIH AFTER FEW MINUTS RUANING TEMPETUR BUSS SAUNDS I REPLACE IMPELLER (WHERE THE THERMOSTAT ,IF THERE IS ONE)"
 
"there is a thermostat at the

"there is a thermostat at the base of the powerhead located behind a small cover should be
3 bolts holding it on,careful when removing there are springs inside."
 
"It is located on the top sect

"It is located on the top section of the exhaust housing. I just changed them out on my '81 Evinrude 140 last weekend. Basically same engine. My port side thermostat spring had junk jammed into it and the two small holes that let water flow past the thermostats (so the hot water can get to the thermostats) were clogged solid. Could this have led to my port side cylinder 4 failure, maybe? Anyway, easy job.

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