BoatBanter.com - View Single Post - Silverton 31' Convertible Port Engine Over Heating

(Silverton 31') wrote in message . com...
Hey guys this is my first time posting, hopefully this is a very
active group. I recently purchased a 1980 Silverton Convertible. I
have conducted daily boat checks and engine checks althought i find
that my port engine over heats. Not over heating to the point of
seizing but around 230 degrees. Some people tell me that i may have a
tachometer issue althought id rather be safe than sorry.My starboard
engine runs beautifully without any issues. If anyone has some ideas
or ways to inspect the engine for possible problems, please post up.
Thanks alot!

John, first see if the gauge and sensor are working properly. It's
easy just to swap sensors and wires on the gauges. Next, change the
thermostat, it's easy and cheap, so why not. Check the raw water inlet
hose, is the inside clogged? Is the heat exchanger for the engine and
transmission clogged? Next, feel the exhaust manifolds and risors,
they shouldn't get hot. Check your raw water pump impeller. Is the
engine raw water cooled? If it is the blades on the circulation pump
may have rotted off if it's not a marine unit, the block can also fill
up with silt over time.