| Re: [GMCnet] Remflex gaskets [message #310559 is a reply to message #310511] |
Fri, 18 November 2016 11:51   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
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Senior Member |
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There are two design when it comes to Copper gaskets.
The embossed ones work well on Manifolds, but does not work on Hedders as
the the ports are not precision so the embossed sect does not match the
opening majority of the time. We carry both as it gives you a choice.
On Thu, Nov 17, 2016 at 5:17 PM, Richard Denney wrote:
> I have Remflex gaskets on Thorley headers, and I installed them some years
> ago. No leaks yet. The center bolt doesn't need to be structurally tight,
> but I installed them on my coach. Headers are lighter than manifolds and
> much more flexible under thermal load, so they tend to flex instead of
> fighting back--one of their key advantages.
>
> With cast manifolds, I would probably prefer copper gaskets--their chief
> advantage is efficient thermal transfer so that the cylinder head and
> manifold don't have a big jump in temperature at the gasket interface. I
> think that's why they were originally installed without a gasket. But
> that's not so much of a concern with headers.
>
> With Remflex gaskets, follow the torquing instructions carefully (as Matt
> cautions).
>
> Rick "suspecting the graphite is a better thermal conductor that the old
> crushable asbestos gaskets" Denney
>
> On Thursday, November 17, 2016, Chris Tyler
> wrote:
>
>> I will be needing to replace the gaskets on my coach at some point. It
> has
>> dougs headers on it and has a leak. Not sure what gaskets are on there
> now.
>> Its not that bead yet but on the ever-expanding 'to do' list.
>>
>> What I have found to work best on other applications is copper header
>> gaskets with a thin film of cpper high temp silicone. Much talk on here
>> about
>> the Remflex gaskets has convinced me to try them. However the first
>> oppertunity will be on a 340 Cuda Im reviving
>>
>> I take it no coatings needed on the Remflex gaskets? Planning on using
>> studs for the 340. Prob a combination of studs and bolts on the Olds. I
>> remember som talk about not fully tightening the center bolt. Is that on
>> headers, manifolds, or both?
>>
>> If they work out I may use them on a chevy twin turbo engine I will be
>> swapping out soon. It has canst iron turbo specific manifolds. Wondering
> if
>> the
>> Remflex is the best choice on those, given the heat and pressure.
>>
>> Hopefully Matt C will chime in
>> --
>> 76 Glenbrook
>>
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>
>
> --
> '73 230 "Jaws"
> Northern Virginia
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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