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Thermostat housing issues

  #1  
Old 06-28-2019, 05:41 PM
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Default Thermostat housing issues

The thermostat housing on my Mazda Bravo keeps leaking. I have removed the whole assembly 2 times with new gaskets and heat resistant silicone and it still leaks. Any suggestions would be greatly appreciated.
 

Last edited by mazdabravo; 07-03-2019 at 09:05 PM. Reason: Delete Post
  #2  
Old 06-28-2019, 06:34 PM
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Replace it. Look for cracks or corrosion.
 
  #3  
Old 06-28-2019, 07:06 PM
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Thanks.
 
  #4  
Old 06-29-2019, 09:21 AM
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Originally Posted by mazdabravo View Post
The thermostat housing on my Mazda Bravo keeps leaking. I have removed the whole assembly 2 times with new gaskets and heat resistant silicone and it still leaks. Any suggestions would be greatly appreciated.
Take off the thermostat housing. Check it for absolute straightness/flatness in several directions. If not absolutely flat, sand it flat with a piece of wet/dry on a sheet of glass (or buy a new thermostat housing), then wash off, dry, and install using new gasket and thin coat of RTV. Allow the RTV to set up for a few hours before adding coolant.
 
  #5  
Old 06-29-2019, 04:21 PM
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Yes Iíve done all of what youíve said and still It leaks. I think Iíll just replace the whole assembly. Thanks
 
  #6  
Old 07-03-2019, 08:34 AM
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I also jack up the front right corner of the truck, gravity helps keep the thermostat in place that way.
 
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