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Mod | | | Forums66 Topics128,048 Posts1,055,540 Members48,425 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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| | | | Joined: Sep 2016 Posts: 31 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2016 Posts: 31 | Hi all, hope I am right here. The heater valve seal at my thermostatic heater valve leaked badly. Today the replacement seal was in my inbox. I have thoroughly cleaned all parts and will tomorrow straighten the base plate. Before I throw everything together I'd like to grease all moving parts. But I am not sure if I should put some grease to the seal itself to protect it from potentially aggressive components in the coolant. Any suggestions will be highly appreciated. | | | | | Joined: Jul 2013 Posts: 863 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 863 | The only thing I used on my Ranco heater valve was plumbers grease during reassembly. Greased the seal and tube lightly to help insert it back into the tube. Plumbers grease will not deteriorate the rubber seal.
Tim
"Pay attention to the details! It ALWAYS pays off."
1949 Chevrolet 3100 Series 1/2 ton Pickup
1964 Chevrolet C10 (Ol' Yella) (SOLD)
1958 Chevrolet Biscayne 2 door (SOLD)
1970 VW Beetle
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