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Question on replaced readiator core

  #1  
Old 01-29-2011, 11:04 PM
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Default Question on replaced readiator core

I replaced the radiator heater core but when I took out the old one there were some ceramic or something washers that cover the in/out lines through the firewall, but when i took it out they crumbled to nothing so I put it back without them. I think I'm getting some fumes from the engine bay. What can I use to plug the excess hole after the fact?

Thanks
Rick
82 GMC Sierra Classic
 
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Old 01-29-2011, 11:49 PM
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Just squeeze some silicone around the inlet and outlet.
 
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Old 02-01-2011, 02:09 PM
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Any suggestion on specific product, does it need to be special heat rated silicone?
 
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Old 02-01-2011, 03:31 PM
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You don't need a high temp product as the temp won't be over ~200 degrees at the highest. Just go to the parts store and see what they have. Perma-Tex brand should have something available.
 
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