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Mod | | | Forums66 Topics128,072 Posts1,055,904 Members48,429 | | 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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| | | | Joined: Aug 2008 Posts: 10 New Guy | | New Guy Joined: Aug 2008 Posts: 10 | What is the most "reliable/leak proof" way to replace the water housing/thermostat assembly on an old GMC V6? I have always used a gasket (double coated with compound) but now see these "gasket-less" compounds on the rack at the local auto supply. Any advice welcome.
Thanks | | | | | Joined: Aug 2008 Posts: 230 Shop Shark | | Shop Shark Joined: Aug 2008 Posts: 230 | i generally have no problem's just using 3m weatherstrip adhesive on the gasket . | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | I always use a gasket & put RTV on both sides. If it has the therm. in a position where it could fall out, like on Fords, I glue the gasket to the housing like Old Dog does.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Permatex Super Hi-Tack is what I use.
Bill Burmeister
| | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | Use that also sometimes Bill, but good old #2 Form-A-Gasket has been a staple on my shelf for more than half a century and as a professional mechanic pop used it before me. And we put many a midget back togeather using #2 and it's never failed us yet.
I probably should have used Permatex Copper Spray-A-Gasket on the head when I put it back together. But still should have RE-TORQUED IT!!!!
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 11/08/2008 11:41 PM.
Denny G
Sandwich, IL
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