Quote:
Originally Posted by stovie
Considering the low temperature where you live I would suggest taking out the thermostat and plug the bleed hole in it with a small weld or something.
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The small hole in the thermostat has a small piece of metal in on most thermostats. This will close the hole as soon as your water pump starts pumping against it. So there is no point closing it, except if you want your engine to possibly overheat.
Jan