Expert advice neededand components,
New to your forum and in bad need of some advice.
Have 1996 ProMax 225 ,OG367957, it was a performer until I had the water pump impeller replaced and they installed with the incorrect placement of the two gaskets I.E. top gasket placed under the impeller plate and vise verse.
I launched for a test run and immediately hit the temperature warning alarm, back on the trailer dropped the lower housing and discovered their gasket error.
Replaced with proper gasket relaunched but the excessive engine temperature was still there across the complete rpm range.
Put the motor in the hands of a certified Merc mechanic who replaced the entire water pump,stats,poppet assembly, flushed the block, compression test, reset throttle sensor, and gave thumbs.
launched again with no improvement,runs @ 180 to 200 with stats @ 150 lake water 70
what possible damage was done to the power head components as a result from the first over heating event?
In advance
Dundee