Quote:
Originally Posted by stephenson
I learned a trick about 20 years ago on a BMW 2002 I had which had an external tstat ... have used it on every tstat I have installed since then - I and several other BMWCCA members went through dozens prior to finding ones that actually operated properly - someone came up with this idea and it appeared to work then.
I drill 3-4 tiny holes around the perimeter - the portion of the tstat that is thin (the part that moves) .. while I don't KNOW if this had made a difference since then in the 10-15 tstats I have replaced or simply removed and then reinstalled, I have not had a tstat that didn't appear to operate properly since then.
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How tiny are we talking? I took one and drilled just one the size that Diesel Giant shows on his page and it kept the car from getting above 60 C. I was toying with the idea of drilling tiny holes in one if the one in the mail doesn't fix the problem.