exhaust comming out of thermostate?

divot61

Member
Joined
May 8, 2006
RO Number
21158
Messages
2
1970 evinrude 40 hp outboard, does anybody know why there would be exhaust comming out of the coolant tube up by the thermostate hole? engine purrs like a kitten, so i dont think its a head gasket, any other suggestions??

HELP!!!
 
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