what type sealant for t-stat water neck?
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From: VA
Car: '91 Z28
Engine: L98 5.7L TPI
Transmission: 700R4
Axle/Gears: 323's
what type sealant for t-stat water neck?
does it really matter what type sealant i use on the t-stat water neck? i don't even have 100 miles on this top-end rebuild and am already having to reseal it. granted, the surfaces ain't perfect anymore, so in addition to the gasket, i use sealant on both sides of it to compensate for the pits, etc. in the mounting surfaces. i think i used the black rtv last time and the gasket i use also has an integrated "o-ring" type seal in it, so should help seal a little more. if someone knows a more reliable sealant, please advise. thx, as always.
- keith
- keith
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From: 53.0907° N, 113.4695° W
Re: what type sealant for t-stat water neck?
does it really matter what type sealant i use on the t-stat water neck? i don't even have 100 miles on this top-end rebuild and am already having to reseal it. granted, the surfaces ain't perfect anymore, so in addition to the gasket, i use sealant on both sides of it to compensate for the pits, etc. in the mounting surfaces. i think i used the black rtv last time and the gasket i use also has an integrated "o-ring" type seal in it, so should help seal a little more. if someone knows a more reliable sealant, please advise. thx, as always.
- keith
- keith
I've found that putting the parts together only finger tight and waiting about an hour before final torque goes a long way towards a leak free seal. Some manufacturers list that as their standard procedure.
We've also been experimenting with Permatex' "The Right Stuff" with very good results. It's said that you can forgoe the hour wait with this newer product too.
Joined: Sep 2005
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Re: what type sealant for t-stat water neck?
Go to the parts store and buy a new cast-iron water outlet, and throw that stupid stock chinesium one in the trash.
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From: 53.0907° N, 113.4695° W
Re: what type sealant for t-stat water neck?
Thread Starter
Supreme Member
Joined: Jun 2000
Posts: 1,295
Likes: 0
From: VA
Car: '91 Z28
Engine: L98 5.7L TPI
Transmission: 700R4
Axle/Gears: 323's
Re: what type sealant for t-stat water neck?
sounds good to all... for now will try the re-seal effort but if it happens again in the (too) near future, then will go for the replacement. thx...
- keith
- keith
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Joined: May 2005
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From: Malvern, Arkansas
Car: 90 IROC 2-92 Zs blk vert & prpl
Engine: stealth ram brodix track 1 ful port
Transmission: 700r4 4l80e
Axle/Gears: iroc 375 lokr 92 Z 277 pos vert 327
Re: what type sealant for t-stat water neck?
I use permatex gasket maker on just about everything especially water stuff. I used it to adhere my taurus fan to my radiator and it is STUCK.
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From: Colorado
Car: 83 Camaro Z28 (CFI)
Engine: 305 V8 (CFI)
Transmission: 700R4
Axle/Gears: 3.73
Re: what type sealant for t-stat water neck?
http://shop.advanceautoparts.com/web...hTerm=permatex
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From: Northern, CA
Car: 1989 Iroc-Z Camaro
Engine: TBI,5.0
Transmission: Automatic 700R4
Axle/Gears: Eaton Posi,3.42,LPW Ultimate Cover
Re: what type sealant for t-stat water neck?
I payed $10.00 for mine a few years back.(Fel-Pro)
Last edited by Ron U.S.M.C.; Apr 23, 2013 at 08:24 PM.
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