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    drilling thermostat

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    Admin
    Admin

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    drilling thermostat

    Post by Admin on Sat Nov 02, 2013 10:38 am

    watching the powerblock stuff on the tube. they showed about drilling a burp hole in the thermostat. seems like a smart thing to do.

    am i the only one that never heard of that???


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    hardtailjohn

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    Re: drilling thermostat

    Post by hardtailjohn on Sun Nov 03, 2013 2:07 pm

    Shocked  Huh????
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    willowbilly3

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    Re: drilling thermostat

    Post by willowbilly3 on Sun Nov 03, 2013 8:15 pm

    Nah, been doing it a long time. Toyota even puts one in theirs. I don't do it much anymore but I always warm the engine until coolant circulates and then top it off if I've had the coolant out.
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    Re: drilling thermostat

    Post by Admin on Mon Nov 04, 2013 11:38 pm

    HTJ---they drill a 3/16 hole in the flange of the thermostat to allow coolant flow without the stat being opened--a bypass kinda sorta--jb's answer is how i had been taught--i did find a lot of forum action on it from years past--some yeas and some nays--i tend towards the yea side--anything to alleviate the burps


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    hardtailjohn

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    Re: drilling thermostat

    Post by hardtailjohn on Tue Nov 05, 2013 11:05 am

    Makes sense.... I always do like JB said...let it warm then top off. If I have the Tstat out, I pour some in before installing the Tstat... guess the hole wouldn't be a problem. I've seen some now that I think of it, but never paid any attention.
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    willowbilly3

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    Re: drilling thermostat

    Post by willowbilly3 on Tue Nov 05, 2013 5:45 pm

    Those old AMC Eagles used to be the worst. They would always blow half the coolant back out when they burped. I had a big funnel I could cram into the filler neck to catch it. Then I figured out to put a flushing T in the heater hose and let the air out there as I filled it without the engine running and that worked pretty good too.

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