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-   -   How To 180 Degree Thermostat (Write Up w/ Pics) (http://www.ramforumz.com/showthread.php?t=92023)

moparornocar72 09-15-2011 04:05 PM

How To 180 Degree Thermostat (Write Up w/ Pics)
 
Parts you will need:
part #4128 (alternate part #15128) 180 degree thermostat from autozone $14.99
1 gallon of coolant coolant $10.99
=$25.98 plus tax.
I had a 20% percent discount and ended up spending $20.78 plus tax!
:smileup:

Depending on how many miles are on your truck, you may need to get a new gasket for the thermostat, the only problem is they do not sell just the gasket at any parts house i have check so u might have to buy the factory gasket and rob the gasket off of it. (part #41603 if you need it)
http://i25.photobucket.com/albums/c8...-46-52_696.jpg
Comparison of the Old and New
http://i25.photobucket.com/albums/c8...3-37_692-1.jpg
Same Motorad as the Jet, Just Much Cheaper:
http://i25.photobucket.com/albums/c8...-03-52_736.jpg

Tools you will need:
1 ratchet (i used a flexible)
1 6" wobble extension
13mm socket
Gloves if wanted

http://i25.photobucket.com/albums/c8...-03-52_563.jpg

Procedure:
1. Let the engine be cool! Do NOT rush and burn yourself!
2. Loosen the clips that hold the upper radiator hose to the fan housing and loosely pry up, this will give you more room to work with once it's loose:

http://i25.photobucket.com/albums/c8...2-04-21_99.jpg
3.Locate the thermostat:
http://i25.photobucket.com/albums/c8...-20-12_304.jpg
4. Remove the two 13mm bolts:
http://i25.photobucket.com/albums/c8...12_304-1-1.jpg
5. Move the upper radiator house to the side (keep clear of the belt and anything else as not to get coolant on it)
http://i25.photobucket.com/albums/c8...-52-21_895.jpg
6. Pull out the old 203 degree Thermostat:
http://i25.photobucket.com/albums/c8...-55-07_697.jpg
7. Remove the gasket off the old thermostat and place on the 180 degree thermostat:
http://i25.photobucket.com/albums/c8...-56-46_513.jpg

Comparison of the Old And New Again:
http://i25.photobucket.com/albums/c8...3-37_692-1.jpg
8. Place new thermostat in housing, Note: it is a little tedious to get the gasket to completely go down but just go slow and work it around in small increments.
http://i25.photobucket.com/albums/c8...-59-03_282.jpg
9. Place the 2 13mm bolts back in, fill up with coolant and your job is done.
http://i25.photobucket.com/albums/c8...-20-02_701.jpg

Took me 15 min. to change out the thermostat and I didn't time it after that to warm it up and make sure everything was good. Very easy mod!

A big thanks to this mod goes to OLDHOTROD who provided the part numbers needed to do this write up!:smileup:


ORT 09-15-2011 04:08 PM

Well done. The 180 stat is a nice little mod.

moparornocar72 09-15-2011 04:26 PM

Thanks I got this, b pillar tape removed, lower grill removed, and did some looking around at that y pipe.

highlandchef 09-15-2011 04:32 PM

Nice work but why did you decide to do it? Years ago it was fairly common; some people changed them back and forth seasonally but I thought it was a bad idea now with computerized engine management.

snrusnak 09-15-2011 05:00 PM

Quote:

Nice work but why did you decide to do it? Years ago it was fairly common; some people changed them back and forth seasonally but I thought it was a bad idea now with computerized engine management.
The reason it's problematic with electronic computer management is when the engine is warming up the computer senses the coolant temperature and adds fuel until it reaches operating temperature(sort of like a choke, except instead of limiting air, it adds fuel...same thing). Operating temperature is somewhere between 160-180 deg F for most vehicles. Running the 180 tstat USUALLY does not cause any issues. If you use one in very cold climates you'd probably be more prone to issues. And the issues would basically just be poorer mpg. It's a good mod, keeps the engine cooler (lasts longer and provides a small increase in power).

snrusnak 09-15-2011 05:00 PM

^Oh and the main reason manufacturers run ~200 deg thermostats is because more heat helps with emissions.

moparornocar72 09-15-2011 05:05 PM

Everything he said, I live in Alabama and it does not get very cold. I have done a lot of research on this and couldn't stomach paying 60 for a thermostat so when I was given a part number I bit the bullet and did this write up while in the process.

snrusnak 09-15-2011 05:08 PM

^ good write up :smileup:

moparornocar72 09-15-2011 05:11 PM

thanks, I try to do write up or give tips on all mods I do

HaydenWar 09-15-2011 05:20 PM

So the Duralast is in fact the exact same Motorad that Jet charges $35 for?


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