| Sealing Intake Manifold Exhaust Crossover Question [message #141774] |
Tue, 30 August 2011 21:00  |
A Hamilto
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Registered: April 2011
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Do the SS plates ever fail? It would be more expensive than the SS plates, but, other than that, would it make sense to weld cast iron plugs into the manifold openings? I read somewhere that someone had the openings in the heads plugged that way, but why not the intake manifold?
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| Re: Sealing Intake Manifold Exhaust Crossover Question [message #141784 is a reply to message #141774] |
Tue, 30 August 2011 21:52  |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
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| Hamilton wrote on Tue, 30 August 2011 19:00 |
Do the SS plates ever fail? It would be more expensive than the SS plates, but, other than that, would it make sense to weld cast iron plugs into the manifold openings? I read somewhere that someone had the openings in the heads plugged that way, but why not the intake manifold?
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I filled my manifold with furnace cement (cause it had a crack in it). I welded the crossover with my wire feed welder. Not a great weld job as the manifold is cast iron but it backs up the stainless inserts real good. I used 404 Mr Gasket gaskets that I modified to accept the stainless inserts.
Roy
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] Sealing Intake Manifold Exhaust Crossover Question [message #141800 is a reply to message #141784] |
Wed, 31 August 2011 00:56 |
jimk
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Registered: July 2006
Location: Belmont, CA
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Welding cast metal is not something an average person can accomplish
without failer.
Ask a good knowledgeable welder.
The SS plate works as the heat does not flow past the plate.
It just pulses against it so the temperature build up is not as severe.
On Tue, Aug 30, 2011 at 7:52 PM, <roy@gmcnet.org> wrote:
>
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> Hamilton wrote on Tue, 30 August 2011 19:00
>> Do the SS plates ever fail? It would be more expensive than the SS plates, but, other than that, would it make sense to weld cast iron plugs into the manifold openings? I read somewhere that someone had the openings in the heads plugged that way, but why not the intake manifold?
>
>
>
> I filled my manifold with furnace cement (cause it had a crack in it). I welded the crossover with my wire feed welder. Not a great weld job as the manifold is cast iron but it backs up the stainless inserts real good. I used 404 Mr Gasket gaskets that I modified to accept the stainless inserts.
> Roy
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| Re: [GMCnet] Sealing Intake Manifold Exhaust Crossover Question [message #141809 is a reply to message #141774] |
Wed, 31 August 2011 08:11 |
Steven Ferguson
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Registered: May 2006
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The plates do not fail, ever. I've pulled them after 20K miles and they
polished up like new. Zero corrosion.
On Tue, Aug 30, 2011 at 7:00 PM, A. <markbb1@netzero.com> wrote:
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> Do the SS plates ever fail? It would be more expensive than the SS plates,
> but, other than that, would it make sense to weld cast iron plugs into the
> manifold openings? I read somewhere that someone had the openings in the
> heads plugged that way, but why not the intake manifold?
> --
> '73 23' CanyonLands
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| Re: [GMCnet] Sealing Intake Manifold Exhaust Crossover Question [message #141839 is a reply to message #141800] |
Wed, 31 August 2011 11:12 |
A Hamilto
Messages: 4508
Registered: April 2011
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| jimk wrote on Wed, 31 August 2011 00:56 |
Welding cast metal is not something an average person can accomplish without failer.
Ask a good knowledgeable welder.
The SS plate works as the heat does not flow past the plate.
It just pulses against it so the temperature build up is not as severe.
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Thanks Jim. If anyone has heard of a failure, I expect you would have.
I wasn't thinking about welding it myself, rather taking it to a place where they weld heads. They should be able to do the job.
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