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1969 Project · 02-22-2018, 03:57 PM

I am getting ready to replace my thermostat and was wondering if it is necessary to drill a 1/8 hole in it before installing , if so what are the benefits? I heard that by drilling a hole it could cause the temp to fluctuate. The PO did not drill holes in the current thermostat and the temp is at a constant 190.

02-22-2018, 03:57 PM	#1
1969 Project Registered User Join Date: Sep 2016 Location: Brentwood CA Posts: 180	T-stat to drill a hole or not to drill a hole? I am getting ready to replace my thermostat and was wondering if it is necessary to drill a 1/8 hole in it before installing , if so what are the benefits? I heard that by drilling a hole it could cause the temp to fluctuate. The PO did not drill holes in the current thermostat and the temp is at a constant 190.