overheat on 1998 Subaru Legacy

Engine overheats and antifreeze is lost through the overflow. Have replaced head gasket, water pump, thermostat, radiator, radiator cap and find no water in oil or oil in water. Car heater works fine. Any ideas?

by in Somers, CT on February 28, 2010
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3 answers 2 comments
ANSWER by , February 28, 2010
I have seen these heads develop cracks. Did you have a machine shop pressure check the heads while you were doing the head gasket work? Did you have both of the heads re-surfaced while they were off ?
COMMENT by , February 28, 2010
The head gasket was replaced by a repair shop during a used engine installation. I do not know if this was done but I would assume he must have checked flatness. I do not know what made him change the gasket and seals.
COMMENT by , February 28, 2010
Forgot to mention that engine was pressure tested by the shop after the HG replacement
ANSWER by , March 05, 2010
I just replaced Head gaskets and had heads checked on my '97. So far so good.
ANSWER by , April 29, 2011
Antifreeze....is there any in the engine? Also if you have an electric fan instead of a manual run belt fan.....you may have a fuse blown or a bad fan assembly...or water heat sensor that senses the water is getting hot and turns the fan assembly on?