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Mercruiser Overheat Problem

ehlien

ehlien

Regular Contributor
I have a 454 IO. Last year ran

I have a 454 IO. Last year ran fine when put away. Prepped for launch and ran 5 minutes in driveway with water muffs no problems. Launched and started to drive and withing 5 minutes started to heat up. Water gauge ran up to 200 and alarm came on . Stretched it about 5 minutes at almost idle and shut it down as started to produce considerable white water vapor smoke. Now starter will not click or crank at all. There is a slight amount of water on the top of the intake manifold on each side of the carb area. Ideas? Suggestions? Is there a way to jump the mercathode to crank or start the engine?
 
""...a slight amount of wa

""...a slight amount of water on the top of the intake manifold on each side of the carb area."

Either a byproduct of combustion from a cold engine or water in the oil. Check the oil level and color.

"Now starter will not click or crank at all."

Dead battery, kill switch off, siezed engine."
 
"Ayuh,... With the limited In

"Ayuh,... With the limited Info,...

I'd say you probably need a New motor,...
Or atleast a Good Mechanic to see just how Bad you burnt it up..."
 
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