--- In subaru2@yahoogroups.com, "philmccuen" <philmccuen@...> wrote:
>
> i have a 91 legacy 2.2 motor, thought it had ablown head gasket
> because it kept over heating and because the antifreeze over flow
tank
> kept, well, overflowing. i put an obd I sniffer in the tank and
checked
> for hydrocarbons, bingo. so, i pull the heads, number 3 cylinder is
> clean and the carbon is peeling off the valves, so i think to
myself,
> problem solved. replace the head gaskets fire it up and it runs
fine,
> for four hours. now it over heats but no more overflowing over
flow.
> what the heck is going on? ive replaced the thermostat twice, once
> before and once after the head gaskets. still my coolant wont
> circulate...
>
> to make the car drivable, i cut the valve out of an old thermostat
and
> i can see the coolant circulating through the radiator. so its
> driveable right now. any idea what could be causing a lack of
> circulation with a functional thermostat in the car?
>
Hi...your water pump may be bad, but i think you may have a warped
head or a hairline crack in your head. (inside the engine) Are you
blowing white smoke out of your exhaust??