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clarke bayne
04-30-2002, 06:53 PM
need help what does DMRECO52H788 mean? also have small problem with overheating when boat in gear but idle speed. new motor in 99 and manifolds,risers and water pump last week. stumped. moter is 350 chevy stock alpha 1 o/d does anyone know what the hull speed should be? thanks for any help clarke. :confused:

MOP
04-30-2002, 08:57 PM
DMRECO52H788 Means your hull was built July 1988. Does the engine cool down at higher RPM's? Does one or the other elbow get hotter than the other, 3 years in salt (if you run in it) you might have some flaked off rust plugging the outlets, risers may still be Ok but full of junk.

Stix Magill
05-01-2002, 08:25 AM
My 350 was doing the same and all it needed was an impeller. Also check to make sure your thermostat housing is free of debris.

Seems that at speed water would push on through and cool, but at idle the impeller didn't want to do all the work.

Also 2 cents, but worth nothing! :D

clarke bayne
05-01-2002, 03:22 PM
thanks for the help i'll try suggestions and let you know asap. thanks again clarke