"bushman" wrote in
m:

Thanks to everyone - Allen

Change the impeller in the water pump first to make sure this isn't the
problem. If that doesn't fix it, then....

Take the heat exchanger to a radiator shop and have it cleaned.....
Replace the zincs when you put it back.

Wishing it wasn't so isn't gonna fix it....sorry.

Cleaning our 4-108's heat exchanger dropped the 200F at 2200 RPM down to
just barely opening the NEW thermostat! It's like getting a new
engine...(c;

Don't forget to flush the closed loop coolant side like a car before you do
the heat exchanger. Might as well clean the block out, too....

Gook came out of ours something awful....

--
Larry