[928uk] Overheating 928 S2 Auto 1985

[David Bratley via 928uk]

I had a leak, seemed to be from the thermostat housing - so I ordered a new
thermostat and O-ring and the seal that sits behind the thermostat. Sure
enough original O-ring was badly pinched. Sorted I thought - now no leaks
but it runs hot - noticed bottom hose cold and radiator cold. Tried testing
the thermostat - it opened when heated - but replacing the thermostat
again. Still ran hot. Tried flushing the radiator and refitted everything
and re-filled and followed filling instructions to the letter in the manual
- still running hot. However, now bottom hose appears hot?

I noticed that the heater doesn't blow warm air until I rev the engine a
bit - is that normal? Is there a good/fool proof test for the water pump?

Best regards,

Dave Bratley


07889211126
davebratley at gmail.com
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