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 RTV silicone for valve covers? 
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MMT Pro Member

Joined: Wed Mar 21, 2018 2:51 pm
Posts: 263
Location: Michigan
Post RTV silicone for valve covers?
Has anybody tried to use RTV silicone for the valve cover gasket rather than using the stock valve cover gasket? Would there be to much pressure?

It seems like it would be easier to use and clean up then the graphite gasket material.


Fri Jan 17, 2020 8:34 am
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MMT 1000 Club

Joined: Mon Dec 31, 2012 11:07 pm
Posts: 4820
Location: West Monroe, LA
Post Re: RTV silicone for valve covers?
Will C is hoping I wouldn't chime in...

I've just reused if it's in good shape. Dont bother with rtv.


Fri Jan 17, 2020 9:20 am
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MMT F.E.

Joined: Mon Jul 14, 2014 8:19 am
Posts: 981
Post Re: RTV silicone for valve covers?


Fri Jan 17, 2020 10:07 am
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MMT Elite Member

Joined: Fri Jul 08, 2011 1:54 pm
Posts: 8133
Post Re: RTV silicone for valve covers?
Yeah, I've used them over and over and did tear one years ago. I used plain black rtv and it worked but had to scrape it off next valve adjustment. I typically keep an extra set of gaskets but will keep using the same ones until they quit working.
I wipe head and cover with rubbing alcohol and wipe off the gasket both sides too and put it together. Never had a problem as long as it's not torn.

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Fri Jan 17, 2020 10:48 am
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MMT Sponsor

Joined: Fri Jan 10, 2014 1:16 pm
Posts: 2107
Location: Gladewater TX
Post Re: RTV silicone for valve covers?
:lol: i would only use the rtv if i was in a bind. I have used straight rtv on some kohlers with old warped valvecovers


Fri Jan 17, 2020 11:30 am
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MMT Elite Member
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Joined: Wed Jan 14, 2009 7:23 am
Posts: 6233
Location: Tarkington, TX
Post Re: RTV silicone for valve covers?
re use the gaskets... they will seal.. unless they are torn.. and sometimes those still seal...

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Mon Jan 20, 2020 6:14 am
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