180* Thermostat questions - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-18-2008, 01:18 AM   #1
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Default 180* Thermostat questions

alrite, i ordered it, i got it in the mail, then i realized, how do i put this sucker on the car?

anyone able to give me some instructions on installation?

itd be greatly appreciated.

Mike.
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Old 01-18-2008, 01:35 AM   #2
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haha..yeah. The Black hose that comes from your radiator. There is a cover at the end on if. Make sure your car is cool when you do this FWI. Unplug the hose and place in a box quickly(liquid will come out the end) leave it hanging out of the way and unbolt the cover. just swap the two and make sure you have the gasket on since if you loose it, your line will suck and cause major problems.(Did it before)

Just pour the fluid back into your tank and your good to go!!

hope it helps,
-Mark
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Old 01-18-2008, 01:37 AM   #3
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so right where it attaches to the engine? ok cool, i thought thats where it goes.
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Old 01-18-2008, 01:54 AM   #4
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I'd suggest using a piece of tubing and old milk jug and draining about a 1/2 gal of coolant from the radiator fill cap before you take off the hose leading to the engine. MUCH cleaner that way. Aside from that, just make sure you have a new paper gasket since you'll shred the old one when you take off the hose. Also, you might want to read the coolant fill procedure in Techinfo so you minimize the possibility of trapping any air pockets.
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Old 01-18-2008, 01:56 AM   #5
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i have a gasket, bought it with the stat, and ill take your advice on the techinfo
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Old 01-18-2008, 01:57 AM   #6
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Have you considered drilling it?

Quote:
Originally Posted by bill buttermore
Here is a pic of the summer (180*) t'stat I just removed. I drilled 2 holes in it cause I wanted a little more cooling effect, but you only need one for an air bleed. This shows where to drill in the flange - away from the rubber seal, and away from the sealing edge for the core of the 'stat

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Old 01-18-2008, 03:49 AM   #7
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does drilling it make much of a difference?
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Old 01-18-2008, 07:38 AM   #8
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Yes. You'll notice it more in the summer than the winter, believe it or not. You want a couple very small holes.

Particularly on a car with the EVIL WORTHLESS DEX. Dex turns acidic when exposed to air. You need to get the air out of the system. The best way to do that is to allow it to pass the thermostat any time it wants and go back to the radiator, where it can't travel back through the system.

http://www.zillamotorsports.com/DEX
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Old 01-18-2008, 08:47 AM   #9
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Does the coolant level get low enough if you drain it only from the overflow hose? IIRC, the overflow hose is higher than the upper radiator hose leading to the thermostat.
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Old 01-18-2008, 10:31 AM   #10
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I'm not sure about the 2000+ models which would be the case here, but on the previous generation, you could drain as much as possible from the radiator hole and your overflow bottle won't lose anything.
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