View single post by Judson Manning
 Posted: 10-17-2005 05:39 pm
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Judson Manning

Joined: 03-14-2005
Location: Atlanta, Georgia USA
Posts: 406
Actually, one thing we didn't mention is excessive blow-by.  If your piston rings are shot, you'll have excessive oil temp which will cause the water temp to rise. 

The problem is similar to a blown head gasket where spent combustion gasses leak into the water jacket.  However, a blown head gasket typically exhibits white smoke from the exhaust, as it's hard to keep pressurized water out of the combustion chamber during intake at idle (lots of vacuum).

The excessive blow-by problem is hard to diagnose until you install an oil temp gauge.