J
jpward
Guest
Yes it stands to reason colder becomes denser and so makes its way down the radiator. So when you start the car and run it down the road the water behind the thermostat is very cold as it was cold to begin with now its had an extra cooling. So car reaches warm temperature about 80~90C and thermo opens to allow cooler liquid to replenish the now very hot water.Fast Guy said:Well, the thermostat has been in boiling water for a couple of mins and nothing has happened.
You mean that bit? It flows from the rad into the thermostat doesn't it? (although it's still correct in a round about way as there will be no flow through the rad at all if the stat is shut)
The only thing the thermostat will let through when cold is air through the bleed valve which is the little bit of metal that looks like a manufacturing snag left on and it should be at the top naturally!
If it has not moved then it is not looking good i would try the car without the thermostat fitted it wont do any harm and you will soon see if it is taking a long time to warm up from cold and thus solution found just make sure to bleed the system cold ;-)