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I did use sealant on gasket from housing to motor and correct I did the cork gasket first then the thermostat then the retaining sleeve. I will say when thermostat is in I couldn’t touch the housing it was so hot but I will try the temp gun to give it a double check.
Engine serial number is unknown the tag is worn out
Thermostat housing- (Mercury Thermostat Housing - Fits MCM/MIE 4.3L, 5.0L, 5.7L Carbureted Engines w/ Dry Joint Exhaust - 864592T
SKU: 864592T) to be specific See below The T for the check ball screws in the top of the housing...
Hello All,
I am having a overheating problem with my 06 mercruiser 4.3
Last season I was having a issue with the starboard riser running hot but the engine seem to run normal around 160. I replaced the starboard manifold thinking that was it. It was not I found the check ball was the issue I...
