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[GMCnet] possible vapor lock solution [message #179864]

Sat, 11 August 2012 14:28

Kosier

Messages: 834
Registered: February 2008

Karma: 1

Senior Member

Got the new issue of Hot Rod (October) today. On page 80. they show a carb heat shield with the hint,”A simple heat shield
is a lifesaver when its hot on Power Tour.
So I went down in the basement and looked in my carb cabinet. Dug out a genuine GM heat shield for a Q-jet left over from
the 70s, part# 3969837. GM apparently thought it was important back in the carburetor days. Obviously, I never needed it,
but don’t knock it unless you’ve needed it and tried it.

Gary Kosier
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Re: [GMCnet] possible vapor lock solution [message #179886 is a reply to message #179864]

Sat, 11 August 2012 19:05

kerry pinkerton

Messages: 2565
Registered: July 2012
Location: Harvest, Al

Karma: 15

Senior Member

Naw...it's snake oil... LOL

Read this thread if you don't know what I'm laughing about.

http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=22827&prevloaded=1&rid=2555&start=0

Kerry Pinkerton - North Alabama Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L

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Re: [GMCnet] possible vapor lock solution [message #179896 is a reply to message #179886]

Sat, 11 August 2012 20:45

Kosier

Messages: 834
Registered: February 2008

Karma: 1

Senior Member

But have you tried a "with" and "without" comparison test? Without that,
your opinion has a value of "0".

Gary Kosier

-----Original Message-----
From: Kerry Pinkerton
Sent: Saturday, August 11, 2012 8:05 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] possible vapor lock solution

Naw...it's snake oil... LOL

Read this thread if you don't know what I'm laughing about.

http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=22827&prevloaded=1&rid=2555&start=0
--
Kerry
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Re: [GMCnet] possible vapor lock solution [message #179903 is a reply to message #179896]

Sat, 11 August 2012 21:24

hnielsen2

Messages: 1434
Registered: February 2004
Location: Alpine CA

Karma: 0

Senior Member

You can do the same thing with a phonalic (sp?) gasket and it a lot cheaper.
All is well with my Lord
Signing checks on the front
Howard

----- Original Message -----
From: "Kosier" <gkosier@roadrunner.com>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, August 11, 2012 18:45
Subject: Re: [GMCnet] possible vapor lock solution

> But have you tried a "with" and "without" comparison test? Without that,
> your opinion has a value of "0".
>
> Gary Kosier
>
> -----Original Message-----
> From: Kerry Pinkerton
> Sent: Saturday, August 11, 2012 8:05 PM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] possible vapor lock solution
>
>
>
> Naw...it's snake oil... LOL
>
> Read this thread if you don't know what I'm laughing about.
>
> http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=22827&prevloaded=1&rid=2555&start=0
> --
> Kerry
> _______________________________________________
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>
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All is well with my Lord

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Re: [GMCnet] possible vapor lock solution [message #179912 is a reply to message #179864]

Sat, 11 August 2012 22:39

powerjon

Messages: 2446
Registered: January 2004

Karma: 5

Senior Member

There are a number of unit available:

http://www.jegs.com/i/Mr.+Gasket/720/86B/10002/-1

http://www.jegs.com/i/Mr.+Gasket/720/86/10002/-1

http://www.summitracing.com/parts/MRG-3712/Application/?prefilter=1

JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan

On Aug 11, 2012, at 3:28 PM, Kosier wrote:

> Got the new issue of Hot Rod (October) today. On page 80. they show
> a carb heat shield with the hint,�A simple heat shield
> is a lifesaver when its hot on Power Tour.
> So I went down in the basement and looked in my carb cabinet. Dug
> out a genuine GM heat shield for a Q-jet left over from
> the 70s, part# 3969837. GM apparently thought it was important back
> in the carburetor days. Obviously, I never needed it,
> but don�t knock it unless you�ve needed it and tried it.
>
> Gary Kosier
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan

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Re: [GMCnet] possible vapor lock solution [message #179945 is a reply to message #179912]

Sun, 12 August 2012 10:51

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

G'day,

I have the Mr. Gasket kit on Double Trouble (can't remember which one).

I have no idea if it helped or not because as GaryK rightly noted one has to do a before and after test of the carb temp.

However, I have noted that Double Trouble starts quite quickly after being shut down hot.

The starter doesn't grind and grind and grind like I've heard some other GMC's do.

Regards,
Rob M.

-----Original Message-----
From: John Wright

There are a number of unit available:

http://www.jegs.com/i/Mr.+Gasket/720/86B/10002/-1

http://www.jegs.com/i/Mr.+Gasket/720/86/10002/-1

http://www.summitracing.com/parts/MRG-3712/Application/?prefilter=1

JR

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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