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How to install thermostat?

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Old 07-07-2007, 09:26 PM
  #1  
JimboGT01
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Default How to install thermostat?

Try to button this thing up soon. But i dont know how to take out the old thermostat and put the new one in.
If anyone is wondering i went with a 180 degree thermostat.
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Old 07-07-2007, 09:34 PM
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LetThePoniesRunFree
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Default RE: How to install thermostat?

Obviously, I stole this from a different forum. Hope it helps.

5. Flush your radiator and change your Thermostat, Here start by removing the Coolant drain plugs on the block and opening the radiator flush (on front lower passenger side).
[blockquote]
Remove the thermostat by loosening the 2 bolts and removing the water pump and radiator hoses that connect to the thermostat housing. Remove all the gasket material at the lower intake and thermostat housing, you can use a sharp knife or exacto knife to do this.
Install the thermostat housing without a thermostat or gasket, place the block drain plugs in place, re-attach the hoses and fill the system with water using a hose. Start the engine with the water running, open the radiator drain. This will flush most of the gunk out of the system. Let it run for a few minutes and Drain the system completely again.
Now install your new thermostat and new gasket. But first some important notes about Thermostats:
[ul][*]Not all thermostats are created equal, the "cheap" ones are not a good choice since they will not open and close exactly at the same temperature and water pressure, you best bet here is to buy a "BALANCED" thermostat such as the ones sold by Mr. Gasket, this thermostats have a special construction that makes them open and close exactly at the same temperature regardless of pressure.
They will also not get stuck, we have seen lots of new cheap thermostats do this after a few days or even hours. [/ul]
Make sure you place that thermostat in the right direction, the spring side goes to the lower intake. Good thermostats have an arrow pointing which side goes to the radiator.
Now assemble everything back, put the block drain plugs in place and close the drain on the radiator, start the engine and fill the radiator with a mix of coolant and water, here just a few notes, if you are on a HOT location, use a 70% water 30% coolant mix, on colder areas increase the coolant to a 50-50 mix. Also on hot places use "Water Wetter" for added cooling efficiency, this stuff can lower the temp as much as 10-15 degrees.
Start the engine with the radiator cap removed, add water/coolant mix until it is completely full and you don't see any more air bubbles. Also fill the drain bottle to the top. Take the car for a spin for a few minutes and check coolant again. The level on the drain bottle might go down until all the bubbles are out of the system. Re-check the coolant level for the next couple of days and inspect for possible leaks at the thermostat housing gasket, if so re-tighten the bolts a bit, but not much as you can break the housing.[/blockquote]
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Old 07-07-2007, 10:44 PM
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Frostbitten
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Default RE: How to install thermostat?

Its super easy takes like 5 minutes. I would stick with the stock temperature though. Your sensors are designed to operate under a specific heat range and will not function properly if your cooling system is too cold. Many people have done the 180 degree thermostat and its come to a consensus that it does not help HP at all.
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Old 07-07-2007, 11:22 PM
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JimboGT01
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Default RE: How to install thermostat?

so do you just pop it out?
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Old 07-08-2007, 04:18 AM
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Davojan59
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Default RE: How to install thermostat?

those two bolts that hold the hose to the tstat housing are #10 and #11 on the torque sequence chart of the intake manifold so when u loosen go from 11 to 10 and then when tightening go the other way. And make sure u have a torque wrench with ya to make sure u tighten them to i believe 18-25 ft lbs...?
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