DJE's TStat Swap

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DJE624

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I swapped in my 170 degree T Stat tonight.  It went surprisingly well.  Took about a half hour plus a half hour testing.  Here is a picture of location. (Sorry, I didn't think of taking a picture until I was just about done!)  Pulled the Typhoon tube out.  Then used 8mm socket with short extension, 1/4" drive to remove the two bolts.  Got my cup under it and wiggled it out.  I filled the small cup three times.  So I had one blue cup full and one small clear cup full after draining.  Probably lost 2-3 ounces at most.  So, say I drained about 20 ounces and lost 2 of them.  Then used a small screw driver to break the stock T Stat free from the housing.  Popped the new one in the engine with o-ring out and reversed the process.  I snugged up each bolt and then tightened them up.  I was a little concerned because the o-ring that came with the new TStat was thinner than the stock rubber washer but, after a good testing and a couple of checks, there are no drips.  I drove around the block a few times, checked it, went out for a 5 mile run, checked it then did another 5 mile run with a couple WOTs and a good screeching launch (salt). Then a final check.  It looks like the gauge is slightly lower than the dead center it used to be.  No problem getting heat although it may have taken a bit longer the first time.  No over heating.  Here is a pic of the location of the housing and of the cups I used.

Stat002_zps2625ea04.jpg


Stat003_zps4a7957d7.jpg
 
Nice job guys...Excellent Pics!  Between DJE and SHOdded anything that's needed seems to be there to do the job without concern!
 
Mine is just waiting to go in.  In the old days a new gasket would gave been mandatory. I have not seen any mention of a gasket so I'm assuming there is none. Could this be right?? 
 
Larrylu said:
Mine is just waiting to go in.  In the old days a new gasket would gave been mandatory. I have not seen any mention of a gasket so I'm assuming there is none. Could this be right??

It uses a rubber/silicone o-ring.
 
No heat on the way to work today.  Funny, it worked last night.  I did get a little air pop when I opened the resevour just now.  Maybe it burped.  I'll see in the morning.
 
Thanks!  I will probably be fine.  I didn't run it with the cover off.  And I did get a little air release when I took the cover off at work.  May take a couple burps.
 
I hear ya!  I know that recently a couple of guys have had the same problem and it eventually worked its way out.
 
I burped the coolant system again when I got to the shop this morning.  I'll burp it again when I get home.  Hopefully that will do it.  The shop uses a vacuum rig but I'm hoping I won't need to do that.  My calculations tell me I have to burp up to 20 ounces worth.  UGH!
 
I never used a vacuum coolant filler when I did my Tstat or the turbos. Just drove it around a few times popped the cap off and the air burped out then topped off the reservoir.


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I broke down and bought a jug of coolant on the way back from the shop today.  I don't know where it went but it was down a couple inches.  Must have been low before.  There isn't any on the garage floor.  So, I filled that baby up!  I did start to get my heat back after three burps.  Should be fine now. 
 
Big babies, these engines!  Let the matter be put to rest, finally.  BTW, I heard tell of subzero temps next week in the MidWest.  Make sure the heat is working by then ...brrrr...
 
Yeah, I've had more than enough of this stinkin' weather.  My baby is begging for a detail.
 
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