Recommended sealant for water pump & bolts?
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Joined: Jul 2011
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From: Augusta Township, MI
Car: 1985 IROC-Z
Engine: 383
Transmission: 700R4
Axle/Gears: 3.73
Recommended sealant for water pump & bolts?
Hello all,
I'm finally going to do my water pump tomorrow, wondering what the recommended gasket sealant and thread sealant are?
Mike
I'm finally going to do my water pump tomorrow, wondering what the recommended gasket sealant and thread sealant are?
Mike
Joined: Jun 2015
Posts: 2,187
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From: Austin, TX
Car: 90 Formula / T-tops
Engine: 305 TPI
Transmission: MD8
Re: Recommended sealant for water pump & bolts?
don't think gasket sealant is needed if you have smooth surfaces to mate, otherwise black permatex - little dab will do ya. for threads, only needed if they go into water jackets, use permatex white thread seal
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Car: 1986 IROC Z
Engine: 5.0 TPI
Transmission: 700R4
Axle/Gears: 3.23 Posi
Re: Recommended sealant for water pump & bolts?
I've always used a light application of good old Permatex High Tack. Make sure to clean off all the old gasket material and sealer first.
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From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
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From: S. UTAH
Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
Transmission: AT
Re: Recommended sealant for water pump & bolts?
I'll have to try it on bolts, into water jackets, some day.
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Re: Recommended sealant for water pump & bolts?
NOT Indian Head. Whatever else, NOT that.
Teflon paste is the perfect right stuff for bolts. Permatex 200 (brown gooey gunk), or Ultra RTV, or Right Stuff, is good for the gaskets.
Those parts move around constantly. You need sealers that stay flexible forever, which Indian Head does NOT no matter whether your great grandpa used it on his Model A or not. You don't want regular RTV either, as it eventually tears and turns into little useless *****, especially on the threads.
Teflon paste is the perfect right stuff for bolts. Permatex 200 (brown gooey gunk), or Ultra RTV, or Right Stuff, is good for the gaskets.
Those parts move around constantly. You need sealers that stay flexible forever, which Indian Head does NOT no matter whether your great grandpa used it on his Model A or not. You don't want regular RTV either, as it eventually tears and turns into little useless *****, especially on the threads.
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