Home » Public Forums » GMCnet » one peice intake gasket or two?
| one peice intake gasket or two? [message #86419] |
Fri, 28 May 2010 11:57  |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
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Most places have the two peice intake manifold gaskets, some have the one piece, like the one i just removed.
I assume there is an argument for both?
What is it?
Thanks
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: one peice intake gasket or two? [message #86422 is a reply to message #86420] |
Fri, 28 May 2010 12:17  |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
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rock Auot calls it a "valley pan gasket set" and it looks exaclty like what i just removed. But Advance Auto parts just has the seperate intake manifold gaskets for each side.
There are seperate strips to seal the ends.
dave
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
[Updated on: Fri, 28 May 2010 12:18] Report message to a moderator |
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| Re: [GMCnet] one peice intake gasket or two? [message #86423 is a reply to message #86422] |
Fri, 28 May 2010 12:40 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Dave,
I'm sure there are those who still use the "turkey tray" as we usually call
the "valley pan...", but I don't know who they might be. The primary reason
for that design was apparently to isolate the oil from the hot bottom of the
intake manifold. With the exhaust crossover blocked, which I assume you
plan to do, there's no need for that feature. The more common composition
gaskets seem, intuitively, to offer better sealing for old parts, and
they're definitely needed if you're going to use the SS blockoff plates.
Your best bet is to contact Dick Paterson for a set of his blockoff plates
and gaskets, which are pre-trimmed to fit around the plates.
JMHO,
Ken H.
Americus, GA
'76 X-Birchaven
www.gmcwipersetc.com
On Fri, May 28, 2010 at 1:17 PM, dave silva <gmc@davesilva.com> wrote:
>
>
> rock Auot calls it a "valley pan gasket set" and it looks exaclty like what
> i just removed. But Advance Auto parts just has the seperate intake manifold
> gaskets for each side.
>
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: one piece intake gasket or two? [message #86425 is a reply to message #86422] |
Fri, 28 May 2010 12:49 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Dave,
That "valley pan gasket set" is what is commonly referred to as a "turkey tray". The prevalent school of thought here is to use something like this instead:
http://www.gmcrvparts.com/prod.itml/icOid/799
This gasket will solve the exhaust crossover issue at the same time, unless that is not an issue on a Revcon. Do as Dan suggested on the front and back seals. Those rubber ones are difficult to impossible to get in there properly without slipping out.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] one peice intake gasket or two? [message #86426 is a reply to message #86419] |
Fri, 28 May 2010 12:50 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Dave,
You might like to look over SteveF's album on rebuilding the engine -- lots of great photos and info on the rocker arm you have broken as well as how to install the manifold gaskets.
http://www.gmcmhphotos.com/photos/showgallery.php?cat=3100
I believe it will answer a lot of your questions.
Good luck.
Dennis Sexton
73 GMC
Germantown, TN
USA
-----Original Message-----
From: dave silva <gmc@davesilva.com>
To: gmclist@temp.gmcnet.org
Sent: Fri, May 28, 2010 11:57 am
Subject: [GMCnet] one peice intake gasket or two?
Most places have the two peice intake manifold gaskets, some have the one piece,
ike the one i just removed.
I assume there is an argument for both?
What is it?
Thanks
-
ree to good home- the rest of a 1974 GMC. good for extension, or trailer. But
ou gotta' take the whole thing -zip 27944- rear wheels, glass, etc.
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MCnet mailing list
ist Information and Subscription Options:
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] one peice intake gasket or two? [message #86430 is a reply to message #86426] |
Fri, 28 May 2010 13:25 |
Arthur Mansfield
Messages: 290
Registered: April 2010
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If you go to two gaskets set up you might order 'Mondello Lifter Valley Baffle'. It minimizes the oil contacting the intake manifold as does the job of the valley pan gasket. My problem with the valley pan gasket is everyone I have seen or took off is burnt like it had exhaust leak into the engine. The two I took off were leaking at the exhaust port cross over. The Mondello Lifter Valley Baffle is require in my opinion if you do not block off the exhaust flow in the intake manifold.
Art & Doris
76 EL
On May 28, 2010, at 11:50 AM, dennisfsexton@aol.com wrote:
>
> Dave,
> You might like to look over SteveF's album on rebuilding the engine -- lots of great photos and info on the rocker arm you have broken as well as how to install the manifold gaskets.
>
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=3100
>
> I believe it will answer a lot of your questions.
>
> Good luck.
>
>
> Dennis Sexton
> 73 GMC
> Germantown, TN
> USA
>
>
>
> -----Original Message-----
> From: dave silva <gmc@davesilva.com>
> To: gmclist@temp.gmcnet.org
> Sent: Fri, May 28, 2010 11:57 am
> Subject: [GMCnet] one peice intake gasket or two?
>
>
>
> Most places have the two peice intake manifold gaskets, some have the one piece,
> ike the one i just removed.
> I assume there is an argument for both?
> What is it?
> Thanks
> -
> ree to good home- the rest of a 1974 GMC. good for extension, or trailer. But
> ou gotta' take the whole thing -zip 27944- rear wheels, glass, etc.
> ______________________________________________
> MCnet mailing list
> ist Information and Subscription Options:
> ttp://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] one peice intake gasket or two? [message #86469 is a reply to message #86430] |
Fri, 28 May 2010 19:58 |
hertfordnc
Messages: 1164
Registered: September 2009
Location: East NC
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I guess I'll go with some combination of the suggestions above,
But what was the logice behind the original design with the exhaust going throgu the intake?
dave
Dave & Ellen Silva
Hertford, NC
76 Birchaven, 1-ton and other stuff
Currently planning the Great american Road Trip Summer 2021
It's gonna take a lot of Adderall to get this thing right.
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| Re: [GMCnet] one peice intake gasket or two? [message #86583 is a reply to message #86554] |
Sun, 30 May 2010 07:22 |
Steven Ferguson
Messages: 3447
Registered: May 2006
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Make your own. There is no mystery about a thin piece of SS sheet
metal and cutting it to a specific size. I have never cut away the
gaskets where the plates go. I carefully fit the plates to the holes,
then grind a knife edge around the perimeter of the plates, used red
high temp RTV to hold them in place, then lay on the intake manifold.
I've done this three times now and have not had any issues with the
intake not fitting properly or bacuum leaks. By the time you pay for
the plates and shipping, you could have purchased a sheet of the
stuff, cut a couple pieces off and had enough left over to build a
splash panel behind the cooktop or coffee pot.
On Sat, May 29, 2010 at 7:22 PM, Rob Mueller <robmueller@iinet.net.au> wrote:
> Art,
>
> I sent an email to Mondello to get the part number and price.
>
> Regards,
> Rob Mueller
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Arthur Mansfield
>
> Yes! Mondello makes a stainless plates. I bought a set a couple of years
> ago. I would not use the gaskets listed below without them since they
> would burn through after a while unless something was plugged to stop the
> flow.
>
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> GMCnet mailing list
> List Information and Subscription Options:
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>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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