Drilled T-stat flange - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-21-2008, 12:40 AM   #1
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Default Drilled T-stat flange

Does anybody have a picture of the drilled thermostat flange from the tech article? Im still a little confused as to how to get all of the air out when i refill mysystem.Thanks
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Old 02-21-2008, 12:50 AM   #2
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Old 02-21-2008, 01:11 AM   #3
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Yes, this makes bleeding the system a breeze!
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Old 02-21-2008, 01:32 AM   #4
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Nice I would have done it differently without the pic. Thanks for the quick response guys
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Old 02-21-2008, 01:40 AM   #5
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I would make the holes a little smaller than I have pictured. Those are 1/8", I would do 1/16"
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Old 02-21-2008, 01:46 AM   #6
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Will do. Thanks. Is there more than one hole drilled in yours?
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Old 02-21-2008, 01:49 AM   #7
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Yes, I had 2, opposite each other
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Old 02-21-2008, 01:51 AM   #8
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Sounds good. Thanks again.
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Old 02-21-2008, 11:37 AM   #9
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Here'* a picture of one of mine. You are looking at a 1/16" hole. When you install the thermostat, you want to set the hole at the high point in the thermostat housing. Looking at the housing from the front of the car, that would be the 12:00 O'Clock position. That will allow that last little bit of air to find its way out of the LIM.

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Old 02-21-2008, 02:48 PM   #10
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Thanks Bill. I love BC
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