T-Stat Leak

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Aug 27, 2012 | 12:03 PM

Jake_f16

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Joined: Jun 2011

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From: South Carolina

T-Stat Leak

I got the T-Stat leak on my truck

took it apart last night what a cheap A$$ housing ford used on it. I put a new seal in and could not get it to seal up. Just ordered a billet aluminum housing from DieselSite. Jennifer what super nice to talk to and very helpful. Is there any tricks I may need to know for when I get this and put it together.

Aug 27, 2012 | 12:17 PM

Toreador_Diesel

FTE Leadership Emeritus

Joined: Sep 2003

Posts: 12,253

Likes: 763

From: Houston, Texas

Ran into the same problem when I swapping between thermostats...

I used Black RTV to reseal the thermostat housing.

Permatex/3.35 oz. (95 g.) tube Ultra Black maximum oil resistance RTV silicone gasket maker (82180) | RTV Adhesive | AutoZone.com

I slathered it on the water pump and on the housing itself. Per the instructions, I bolted the two together, but didn't tighten it down. It cured overnight and before I left for work, I tightened it down and absolutely no more leaks!

Aug 27, 2012 | 02:36 PM

stinson 108-1

stinson 108-1

Joined: Jan 2012

Posts: 1,015

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From: south jersey

x2 on the RTV, along with the o-ring of coarse. I have the billet housing also.

Aug 27, 2012 | 04:32 PM

Firefighter 1406

Lead Driver

Joined: Mar 2004

Posts: 5,372

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From: Northern Indiana

Also have the billet housing, used some black rtv from NAPA. It was called the good stuff. Comes in a caulk gun tube. Never had a problem sense.

Aug 27, 2012 | 05:23 PM

Fat Diesel

Logistics Pro

Joined: Aug 2005

Posts: 3,886

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From: Morgan Hill, CA

Use some Scotch Brite or sandpaper to clean up the oring groove.

Aug 27, 2012 | 10:13 PM

Ponyboychris

Lead Driver

Joined: Jan 2007

Posts: 6,708

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From: Kiowa CO

Quote:

Originally Posted by Jake_f16

I got the T-Stat leak on my truck

Here's a write up that I did a year or so ago. Hope this helps. T-Stat Housing R&R

Sep 7, 2012 | 06:49 AM

RedNNBlue

Tuned

Joined: Oct 2006

Posts: 348

Likes: 137

Nice write up. I just replaced the oil cooler O-rings and had to flush the entire system to remove the oil. Naturally, it got all new hoses, thermostat and housing. I'm really wishing I had known about the billet aluminum housing before hand. I broke 2 bolts and had to drill them out when removing the housing. The new housing now leaks despite a new O-ring and housing with properly torqued bolts. What a crappy design. I'll try again this afternoon, clean and dry it really well and then RTV the hell out of it!

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Sep 7, 2012 | 07:06 PM

Ponyboychris

Lead Driver

Joined: Jan 2007

Posts: 6,708

Likes: 5

From: Kiowa CO

Quote:

Originally Posted by Jake_f16

Ponyboy---- I like the link out pictures are always better!!!!

You're welcome. Glad to help out.

Sep 7, 2012 | 08:14 PM

#10

JT250

Cargo Master

Joined: Jan 2009

Posts: 2,800

Likes: 31

From: OKC, OK

Quote:

Originally Posted by RedNNBlue

Mine did not leak before I installed the new billet housing. Now it does just a little bit. The billet housing does not seem to be a cure all although it is a better piece. Guess I will be using some rtv.