Quote:
Originally Posted by coonerboy
Shouldn't the air be pushed out on its own through the top of the radiator and into the tube that goes to the expansion tank?
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It's not a good design because the thermostat housing height allows air to remain in the top of the head...........it doesn't get pushed out.
When you pour coolant from a higher point (the top of the hose above the radiator), you've got a better chance of displacing any air in the head.