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Leaking thermostat housing on a 440 help #2895331 03/03/21 06:49 PM 03/03/21 06:49 PM
Joined: Dec 2005 Posts: 1,495 Fort Workin Tx Day2Runner OP pro stock
Day2Runner OP pro stock Joined: Dec 2005 Posts: 1,495 Fort Workin Tx	As stated I’ve tried about everything I need to replace housing and where to buy Thx in advance Danny

Re: Leaking thermostat housing on a 440 help [Re: Day2Runner] #2895337 03/03/21 07:01 PM 03/03/21 07:01 PM
Joined: Jan 2003 Posts: 13,574 md M mopars4ever I Live Here
mopars4ever I Live Here M Joined: Jan 2003 Posts: 13,574 md	https://www.ebay.com/itm/Billet-Alu...-Chrysler-Dodge-440-383-400/284116003175 https://www.ebay.com/itm/MOPAR-273-...STAT-INLET/360942094808?epid=27021067740 or Original type https://www.ebay.com/itm/NEW-Concou...ines-A-B-C-E-Bodies-2780970/233619343332 Last edited by mopars4ever; 03/03/21 07:08 PM.

Re: Leaking thermostat housing on a 440 help [Re: mopars4ever] #2895347 03/03/21 07:16 PM 03/03/21 07:16 PM
Joined: Jan 2003 Posts: 3,681 South San Francisco, Ca 70sixpkrt master
70sixpkrt master Joined: Jan 2003 Posts: 3,681 South San Francisco, Ca	http://www.rogergibsonautorestoration.com/FileStream.aspx?FileID=1 I bought one about 7 yrs ago and not leaking. [img]http://www.imgur.com/hxlGUJt.gif[/img] 4-speed 3:54 Dana 13.01 @107.93 with street tires (not hooking up)

Re: Leaking thermostat housing on a 440 help [Re: 70sixpkrt] #2895376 03/03/21 08:06 PM 03/03/21 08:06 PM
Joined: Dec 2005 Posts: 1,495 Fort Workin Tx Day2Runner OP pro stock
Day2Runner OP pro stock Joined: Dec 2005 Posts: 1,495 Fort Workin Tx	Originally Posted by 70sixpkrt http://www.rogergibsonautorestoration.com/FileStream.aspx?FileID=1 I bought one about 7 yrs ago and not leaking. Does it cover all of the pad on the water pump housing??

Re: Leaking thermostat housing on a 440 help [Re: Day2Runner] #2895382 03/03/21 08:23 PM 03/03/21 08:23 PM
Joined: Jan 2003 Posts: 3,681 South San Francisco, Ca 70sixpkrt master
70sixpkrt master Joined: Jan 2003 Posts: 3,681 South San Francisco, Ca	Originally Posted by Day2Runner Originally Posted by 70sixpkrt http://www.rogergibsonautorestoration.com/FileStream.aspx?FileID=1 I bought one about 7 yrs ago and not leaking. Does it cover all of the pad on the water pump housing?? On mine it does. [img]http://www.imgur.com/hxlGUJt.gif[/img] 4-speed 3:54 Dana 13.01 @107.93 with street tires (not hooking up)

Re: Leaking thermostat housing on a 440 help [Re: Day2Runner] #2895401 03/03/21 09:20 PM 03/03/21 09:20 PM
Joined: Jan 2003 Posts: 15,338 Omaha Ne T TJP I Live Here
TJP I Live Here T Joined: Jan 2003 Posts: 15,338 Omaha Ne	Just an FYI: we have had issues with the one sided self stick gaskets that a lot of parts stores are selling. They start leaking after install. Another source is to make sure the hose surface on the housing and ID are both clean. I have had more than one hose leak make me think it was the gasket. Lastly a good idea to retighten the clamps (worm gear) every so often until they take a "set" . www.tandmautomotive-omaha.com

Re: Leaking thermostat housing on a 440 help [Re: TJP] #2895502 03/04/21 07:34 AM 03/04/21 07:34 AM
Joined: Jan 2003 Posts: 6,390 Abilene, Texas F fastmark master
fastmark master F Joined: Jan 2003 Posts: 6,390 Abilene, Texas	I bought the eBay one and it seals great. I used a gasket that the holes were oval and too big on this last build and it leaked through one of the holes because the gasket slid to one side when I torqued it in place. Bought a fuel pro blue and no problems.

Re: Leaking thermostat housing on a 440 help [Re: fastmark] #2895540 03/04/21 10:50 AM 03/04/21 10:50 AM
Joined: Apr 2007 Posts: 2,917 Calgary, Alberta Canada a12rag master
a12rag master Joined: Apr 2007 Posts: 2,917 Calgary, Alberta Canada	I like this solution . . .not to worried about non OE look . . .rather have the performance as I like to drive my car . . . http://www.terrysautolab.com/ Haven't had single leak ! Small block, or big block . . . well worth the $$$ Cheers,

Re: Leaking thermostat housing on a 440 help [Re: a12rag] #2895559 03/04/21 11:17 AM 03/04/21 11:17 AM
Joined: Jan 2003 Posts: 5,439 So Cal Sinitro master
Sinitro master Joined: Jan 2003 Posts: 5,439 So Cal	Napa sells on OE replacement... Works fine.. Just my $0.02...

Re: Leaking thermostat housing on a 440 help [Re: Day2Runner] #2895621 03/04/21 01:13 PM 03/04/21 01:13 PM
Joined: Feb 2014 Posts: 1,702 central il. S second 70 top fuel
second 70 top fuel S Joined: Feb 2014 Posts: 1,702 central il.	If it's one of the chrome ones a lot of them are junk and leak. If you continue to have a problem get the grey permatex it'll seal it.

Re: Leaking thermostat housing on a 440 help [Re: second 70] #2895731 03/04/21 04:45 PM 03/04/21 04:45 PM
Joined: Jan 2003 Posts: 5,439 So Cal Sinitro master
Sinitro master Joined: Jan 2003 Posts: 5,439 So Cal	The problem with the chrome ones is that they look good but are made in China out of recycled materials that change shape when hot... And they fail to seal right, have changed out a few chrome ones.... Just my $0.02...

Re: Leaking thermostat housing on a 440 help [Re: Sinitro] #2895736 03/04/21 04:59 PM 03/04/21 04:59 PM
Joined: Jan 2003 Posts: 20,520 Eagle, Idaho Neil The Doctor is in.
Neil The Doctor is in. Joined: Jan 2003 Posts: 20,520 Eagle, Idaho	Tape 400 - 600 sandpaper to a piece of metal that is dead flat. Put ink on the housing sealing surface and gently sand it in a x pattern until the ink is gone to assure it's flat. Use the Permatex gasket sealer specifically designated for water pumps and such.

Re: Leaking thermostat housing on a 440 help [Re: Sinitro] #2895746 03/04/21 05:15 PM 03/04/21 05:15 PM
Joined: Oct 2007 Posts: 4,321 St. Louis, Mo 3 318 Stroker master
318 Stroker master 3 Joined: Oct 2007 Posts: 4,321 St. Louis, Mo	Originally Posted by Sinitro The problem with the chrome ones is that they look good but are made in China out of recycled materials that change shape when hot... And they fail to seal right, have changed out a few chrome ones.... Just my $0.02... I deposited my leaking POS chrome one in the trash can.

Re: Leaking thermostat housing on a 440 help [Re: fastmark] #2895747 03/04/21 05:19 PM 03/04/21 05:19 PM
Joined: Dec 2005 Posts: 1,495 Fort Workin Tx Day2Runner OP pro stock
Day2Runner OP pro stock Joined: Dec 2005 Posts: 1,495 Fort Workin Tx	Part number

Re: Leaking thermostat housing on a 440 help [Re: Day2Runner] #2895775 03/04/21 06:37 PM 03/04/21 06:37 PM
Joined: May 2019 Posts: 6,236 nowhere S Sniper master
Sniper master S Joined: May 2019 Posts: 6,236 nowhere	Originally Posted by Day2Runner Part number Well? What is the part number?

Re: Leaking thermostat housing on a 440 help [Re: Neil] #2895865 03/04/21 10:31 PM 03/04/21 10:31 PM
Joined: Dec 2012 Posts: 257 Alberta 4 440_Offroader enthusiast
440_Offroader enthusiast 4 Joined: Dec 2012 Posts: 257 Alberta	Originally Posted by Neil Tape 400 - 600 sandpaper to a piece of metal that is dead flat. Put ink on the housing sealing surface and gently sand it in a x pattern until the ink is gone to assure it's flat. Use the Permatex gasket sealer specifically designated for water pumps and such. Lap it up and you'll probably find it's not flat. I've found that you may have to do it a couple times, until it stops warping.

Re: Leaking thermostat housing on a 440 help [Re: 440_Offroader] #2895893 03/04/21 11:59 PM 03/04/21 11:59 PM
Joined: Jan 2003 Posts: 32,928 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,928 Grand Prairie,Texas	The number on the gasket in the picture is 35286t. Helps to enlarge it.

Re: Leaking thermostat housing on a 440 help [Re: stumpy] #2896058 03/05/21 01:51 PM 03/05/21 01:51 PM
Joined: Sep 2003 Posts: 19,380 north of coder moparx "Butt Crack Bob"
moparx "Butt Crack Bob" Joined: Sep 2003 Posts: 19,380 north of coder	who makes that gasket ? fel-pro ?

Re: Leaking thermostat housing on a 440 help [Re: moparx] #2896119 03/05/21 04:11 PM 03/05/21 04:11 PM
Joined: May 2019 Posts: 6,236 nowhere S Sniper master
Sniper master S Joined: May 2019 Posts: 6,236 nowhere	Originally Posted by moparx who makes that gasket ? fel-pro ? Apparently it is, Go look up the application for that part.

Re: Leaking thermostat housing on a 440 help [Re: 440_Offroader] #2896155 03/05/21 05:05 PM 03/05/21 05:05 PM
Joined: Jan 2003 Posts: 17,841 S.E. Michigan ZIPPY I Live Here
ZIPPY I Live Here Joined: Jan 2003 Posts: 17,841 S.E. Michigan	Originally Posted by 440_Offroader Originally Posted by Neil Tape 400 - 600 sandpaper to a piece of metal that is dead flat. Put ink on the housing sealing surface and gently sand it in a x pattern until the ink is gone to assure it's flat. Use the Permatex gasket sealer specifically designated for water pumps and such. Lap it up and you'll probably find it's not flat. I've found that you may have to do it a couple times, until it stops warping. Granite surface plate (love mine), piece of granite countertop, flat glass or tile, anything like that can be used as long as it is dead flat. Figure-8 pattern works well too. Rich H. Esse Quam Videri

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