Wow, that be one 'spensive stat.
I'm afraid to say I'm not having much success with this. This morning I disconnected the rad top hose, which was empty, and filled it before quickly reconnecting it. Ran the engine, and after 10-15 mins the expansion bottle was overflowing again. This time I'm sure there was no air in the rad or it's hoses, until it started boiling, when the bubbles found their way into the top hose.
Ok so what's the next step?
I'm thinking disconnect the top hose again, refill and start up for a few seconds with it disconnected to check the pump is working. If it is, remove the thermostat and check it's operation.
What do you guys reckon to running without the stat at all? The rad is only half the size of the donor's, and as it's only going to be used on track it's going to be generating a lot of heat. The extra cooling might be benefecial.
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