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How to install T-stat?

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Old Jun 19, 2010 | 06:24 PM
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How to install T-stat?

the T-stat im going to install has an arrow on it. the arrow is on the opposite side of the little BB valve thingy (not sure whats the real name is).

Should the arrow point towards the front of the truck...which would put the little BB thingy towards the back of the truck....or does it matter.
 
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Old Jun 19, 2010 | 06:44 PM
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The arrow shows you the orientation for t-stats that are mounted horizontally. Makes no difference on our trucks.
 
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Old Jun 19, 2010 | 09:36 PM
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Might wanna get a new housing. It will probably leak if you don't.
 
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Old Jun 19, 2010 | 09:49 PM
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Just drop it in there, no difference. Make sure to clean around and in that t-stat grove any setiment and such and make sure the stat goes in then put the rubber seal on top then the housing. Just for added protection, from a leak, a light bead, very light bead of hi-temp. Permatex around the housing-pump mating surface for added leak protection.
 
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Old Jun 20, 2010 | 08:14 AM
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Yes, By all means get yourself a billet housing from Dieselsite, and also a new set of bolts from an International dealer if you've got 1 close otherwise Ford, and put some anti-seize on them when you install.
Be VERY careful removing the old bolts as many have broken them off, make double sure that the surface on the water pump is CLEAN before re-assembly.
I think Dieselsite also has the 203* TStat and MAY even have the bolts now too.....
 
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Old Jun 20, 2010 | 09:02 AM
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thanks yall....yeah i got the dieselsite housing and 203* T-stat but after reading some of the comments here decided to go with the motorcraft stat.

i took the old stat out yesterday and it looks exactly like the 203*...i havent had the truck long so i'm not sure what all has been done. are there any other stats that look exactly like the 203*....same wording and everything.
 
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Old Jun 20, 2010 | 09:15 AM
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What temp is stamped on it? It is usually in Celsius/Centigrade. 90*C is 195*F. The 203*F would be 95*C.
 
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Old Jun 20, 2010 | 09:26 AM
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they dont say....both the old one and the new 203* just say 64MM USA and on the bottom say STC.

the motorcraft i'm putting in did have the temp...in celsius. i did the conversion and it equals 192.2F i think it was


whats the best way to get the old housing out of the upper hose? i havent tried heating it yet but ive pulled and yanked
 
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Old Jun 20, 2010 | 09:29 AM
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Originally Posted by bama29fan
they dont say....both the old one and the new 203* just say 64MM USA and on the bottom say STC.

the motorcraft i'm putting in did have the temp...in celsius. i did the conversion and it equals 192.2F i think it was.
I gave my DS 203* stat away, so I don't have it to check that out. Do you have the Motorcraft RT-1201?
 
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Old Jun 20, 2010 | 09:35 AM
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Originally Posted by mueckster
I gave my DS 203* stat away, so I don't have it to check that out. Do you have the Motorcraft RT-1201?
yep...RT-1201

whats the best way to get the old housing out of the upper hose?
 
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Old Jun 20, 2010 | 09:44 AM
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Just work a screwdriver around it to break the seal to the hose.
 
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Old Jun 20, 2010 | 10:52 AM
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i got the housing out just like you said....but the hose has a bad spot on the inside. called oriely's and they have the dual alternator hose for $15. off to the store
 
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Old Jun 20, 2010 | 10:53 AM
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Cool deal. You'll be all fixed up soon.
 
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