5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

thermostat housing problem

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Old Jul 3, 2009 | 12:15 AM
  #1  
1988GTstang's Avatar
1988GTstang
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Default thermostat housing problem

i did my water pump and decided to change the thermostat when i put everything together and started it theres a **** stream shooting right out underneath the housing i tryed two different new gaskets and it didnt fix the problem
i tryed buyin a new housing and the one i got has a threaded hole at the top and my stock one doesnt
i really need help wit this i been witout my car for a week and i desperately need it
Old Jul 3, 2009 | 08:46 AM
  #2  
mjr46's Avatar
mjr46
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From: West Virginia
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get a can of sealer caller "the right stuff" coat both sides of the gasket with it and tighten down housing evenly and let it set up/ dry for a few minutes, should work as long as intake has a true surface and isn't heavily pitted
Old Jul 3, 2009 | 02:49 PM
  #3  
FordMustangXBA's Avatar
FordMustangXBA
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From: Connecticut
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Or you can just use RTV, or even double up the gaskets if you want to.
Old Jul 3, 2009 | 03:52 PM
  #4  
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steel1
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Just get a threaded plug to fill the hole on top of the housing ,seal the threads first. I think that is just the older style housing, I have the same one on my 93, because I cracked the original when tightening.
Old Jul 4, 2009 | 09:59 PM
  #5  
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stockerstang
 
Joined: Jul 2009
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From: ohio
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the moderator is right, the "right stuff" is AWSOME!!!!! its a black rtv from permatex. i used it on my thermostat housing, and one of my bolts is broke off in the manifold, i just rigged it bc i plan to get new intake soon.
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