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Re: T-stat to drill a hole or not to drill a hole?
Necessary? No. Helpful? Yes. It allows the engine and radiator to be completely filled with no air pockets being trapped. Drilling one or or two 1/8" holes in a thermostat creates no issues or fluctuating temps that I've ever seen. Many thermostats nowadays come with holes already in them....
Last edited by Rich69shortfleet; 02-22-2018 at 07:27 PM.
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