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Can't stop thermostat housing leak #1177014 02/12/12 12:16 PM 02/12/12 12:16 PM
Joined: Jun 2009 Posts: 95 United States T tee-john OP member
tee-john OP member T Joined: Jun 2009 Posts: 95 United States	Is it ok to double up a gasket on the thermostat housing? I have a small drip that can't be stopped and I noticed that the thermostat housing rocks back and forth on the intake and I tried to balance it out some but still not great. If it is ok to double up do I need to use RTV or ultra copper also? Thx

Re: Can't stop thermostat housing leak [Re: tee-john] #1177015 02/12/12 12:19 PM 02/12/12 12:19 PM
Joined: Dec 2007 Posts: 304 Ohio LS-300 enthusiast
LS-300 enthusiast Joined: Dec 2007 Posts: 304 Ohio	I use the RVT on the housing side. You may want to put a straight edge across the housing to check for flatness. 1979 Chrysler 300 1968 Barracuda project

Re: Can't stop thermostat housing leak [Re: LS-300] #1177016 02/12/12 12:31 PM 02/12/12 12:31 PM
Joined: Jan 2003 Posts: 21,065 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,065 Niles , Ohio	I just use a good gasket and brown Permatex.Mine is chrome and never leaks.Rocky Chrysler Firepower

Re: Can't stop thermostat housing leak [Re: tee-john] #1177017 02/12/12 12:45 PM 02/12/12 12:45 PM
Joined: Feb 2004 Posts: 1,012 indiana M mcmopars super stock
mcmopars super stock M Joined: Feb 2004 Posts: 1,012 indiana	Quote: Is it ok to double up a gasket on the thermostat housing? I have a small drip that can't be stopped and I noticed that the thermostat housing rocks back and forth on the intake and I tried to balance it out some but still not great. If it is ok to double up do I need to use RTV or ultra copper also? Thx if it rocks that should tell you something.is it the chrome one by chance? i had to work mine over to get it true. then used the red gasket sealer

Re: Can't stop thermostat housing leak [Re: tee-john] #1177018 02/12/12 01:10 PM 02/12/12 01:10 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	it's severely warped. Drawfile it (& the flange it sits on) & see if you can get it flat live every 24 hour block of time like it's your last day on earth

Re: Can't stop thermostat housing leak [Re: tee-john] #1177019 02/12/12 03:30 PM 02/12/12 03:30 PM
Joined: Dec 2004 Posts: 10,552 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,552 Rittman Ohio	Contact Moparts member here Gregg Travis AKA Roadhazard for the gasket you need.He makes a few different types for whatever housing you are using. Got his gaskets on my w.pump housing with a motor plate with zero sealer and ZERO leaks.I also am using a chrome water neck and one of his gaskets dry with zero leaks there as well Best darn gaskets money can buy Gus 7067741-mysavoy.jpg (210 downloads) 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: Can't stop thermostat housing leak [Re: fourgearsavoy] #1177020 02/12/12 03:39 PM 02/12/12 03:39 PM
Joined: Jun 2011 Posts: 1,039 ALBERTA CANADA C CUDA8U super stock
CUDA8U super stock C Joined: Jun 2011 Posts: 1,039 ALBERTA CANADA	take housing off,buff clean and dry,mask off chrome area,spray with light coat of primer or paint,once dry secure in vise, run flat file across the flange and any high spots on it will have the primer takin off,continue this process until its flat

Re: Can't stop thermostat housing leak [Re: tee-john] #1177021 02/12/12 03:52 PM 02/12/12 03:52 PM
Joined: Jan 2003 Posts: 5,439 So Cal Sinitro master
Sinitro master Joined: Jan 2003 Posts: 5,439 So Cal	Quote: Is it ok to double up a gasket on the thermostat housing? I have a small drip that can't be stopped and I noticed that the thermostat housing rocks back and forth on the intake and I tried to balance it out some but still not great. If it is ok to double up do I need to use RTV or ultra copper also? Thx If it is 1 of those chrome Mopar Performance Chinese specials... Toss it in the dumpster, you can sand it, grind it, put multiple gaskets and layers of RTV it will still leak.. The problems is the low quality recycled material used.... Get yourself an OE cast iron clone from Napa or the nice billet one from Mancini.. Just my $0.02...

Re: Can't stop thermostat housing leak [Re: Sinitro] #1177022 02/12/12 04:19 PM 02/12/12 04:19 PM
Joined: Feb 2010 Posts: 1,377 Ohio Todd pro stock
Todd pro stock Joined: Feb 2010 Posts: 1,377 Ohio	Quote: Quote: Is it ok to double up a gasket on the thermostat housing? I have a small drip that can't be stopped and I noticed that the thermostat housing rocks back and forth on the intake and I tried to balance it out some but still not great. If it is ok to double up do I need to use RTV or ultra copper also? Thx If it is 1 of those chrome Mopar Performance Chinese specials... Toss it in the dumpster, you can sand it, grind it, put multiple gaskets and layers of RTV it will still leak.. The problems is the low quality recycled material used.... Get yourself an OE cast iron clone from Napa or the nice billet one from Mancini.. Just my $0.02... Had on of those same things replaced the neck and gasket with a thin layer of mopar gray sealant and problem solved.

Re: Can't stop thermostat housing leak [Re: Todd] #1177023 02/12/12 05:11 PM 02/12/12 05:11 PM
Joined: Jan 2003 Posts: 5,899 Athens, Greece Pyper70 master
Pyper70 master Joined: Jan 2003 Posts: 5,899 Athens, Greece	I use the brown permatex to seal it....Used to apply the Blue RTV .. As for the rocking...take it off and file it down. It can't be that hard. Go in single motion in one direction. I had to file my one cast iron HP manifold and it took me 10 hours over 2 days to do so. Don't double up the gaskets because the gaskets will probably end up blowing out while you are on the road and then you will wish you had done it the right way. If you gotta get the car somewhere fast, then yeah...double up...but don't leave it accident prone. Family owned 1969 Charger R/T DualQuad 440/727/GVO/3.55s

Re: Can't stop thermostat housing leak [Re: RapidRobert] #1177024 02/12/12 05:33 PM 02/12/12 05:33 PM
Joined: Jul 2008 Posts: 30,424 Florida STAYcation dOrk ! The village idiot's idiot
dOrk ! The village idiot's idiot Joined: Jul 2008 Posts: 30,424 Florida STAYcation	Quote: it's severely warped. Drawfile it (& the flange it sits on) & see if you can get it flat x 2 ... ORE just put it on a belt-sander and that should straighten it out

Re: Can't stop thermostat housing leak [Re: Sinitro] #1177025 02/12/12 05:48 PM 02/12/12 05:48 PM
Joined: Oct 2003 Posts: 3,698 NE Oklahoma V Von master
Von master V Joined: Oct 2003 Posts: 3,698 NE Oklahoma	[quoteIf it is 1 of those chrome Mopar Performance Chinese specials... Toss it in the dumpster, you can sand it, grind it, put multiple gaskets and layers of RTV it will still leak.. x10!!!! I had one, filed the neck ifself, filed the housing, used right stuff, etc...it never stopped leaking. Total POS..... I took a chance and tried the billet piece from Source. Never a drop..... 72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72. Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.

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