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10-06-2009, 12:35 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Intake manifold plug - what is this for? (noob question)
Ok, I'm sure some of you will get some chuckles out of this. There is a screw-in plug on my intake manifold for my 427 FE near the distributor. I have included 3 pics. What is it for?
It is leaking a little bit and I was planning on pulling it out, putting some teflon tape on it and putting it back in to stop the leak.
Thanks!
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“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
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Last edited by dcdoug; 10-06-2009 at 12:51 PM..
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10-06-2009, 01:00 PM
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CC Member
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Join Date: Sep 2009
Location: Sacramento,
CA
Cobra Make, Engine: ERA 707, 446ci FE
Posts: 1,115
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Probably for PCV inlet and/or auxiliary vacuum connections.
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= Si Opus Quadratum vis, angulos praecidere noli. =
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10-06-2009, 01:08 PM
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Wait, it's leaking WATER, can't be a vacuum fitting. DOH!!  |
10-06-2009, 01:10 PM
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Join Date: Mar 2001
Location: Northport,
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Cobra Make, Engine: Kirkham, KMP178 / '66 GT350H, 4-speed
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Temp sensor?
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10-06-2009, 01:15 PM
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Banned
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Join Date: Oct 2003
Location: Yorba Linda,
CA
Cobra Make, Engine: SPF w/392CI stroker
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Quote:
Originally Posted by dcdoug
"Ok, I'm sure some of you will get some chuckles out of this...427 FE...to stop the leak...."
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I'm sure there are a few gazillion threads on this topic?  |
10-06-2009, 01:51 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Quote:
Originally Posted by RedBarchetta
I'm sure there are a few gazillion threads on this topic? |
I searched and didn't find any threads that seemed relevant, but doesn't mean my answer wasn't there somewhere.....figured someone would have a quick answer on this for sure.
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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10-06-2009, 01:16 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
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I don't know that it's leaking water. I haven't checked yet. Looks more like oil, but I haven't felt it (too busy with my broken pan bolt).
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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10-06-2009, 01:33 PM
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Join Date: May 2008
Location: Sacramento,Ca.,
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Cobra Make, Engine: Midstates (2001)
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That low and behind the distributor it's not coolant, that would go straite into the intake valley and looks small for a PCV, i say pull the plug and tape it up no harm no foul.
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10-06-2009, 02:03 PM
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CC Member
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Join Date: Sep 2009
Location: Sacramento,
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Cobra Make, Engine: ERA 707, 446ci FE
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My first answer assumed it was a vacuum tap. If it doesn't go into the intake plenum, then it most likely goes into the water jacket and is for a temp sensor. If it goes through into the lifter valley... maybe an oil breather or PCV inlet?
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= Si Opus Quadratum vis, angulos praecidere noli. =
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10-06-2009, 02:09 PM
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Heck my answer ASS-UMED it was leaking water, what else COULD it be leaking? I know of no oil passages in that intake manifold, water and air, that's it. |
10-06-2009, 02:12 PM
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Join Date: Apr 2009
Location: Bethesda,
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Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
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I guess regardless, pulling the plug, taping it and putting it back should solve my problem right?
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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10-06-2009, 02:23 PM
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Join Date: Mar 1999
Location: GTA, Ont,
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Plug...can be used for 2nd temp sensor... see my pic..
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10-06-2009, 02:23 PM
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When you pull it, let us know what comes outta da hole, you got our couriosity going now.
Yeah, that should do the trick, tape and re-install. |
10-06-2009, 02:26 PM
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Join Date: Apr 2009
Location: Bethesda,
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Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
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I guess that's the answer!
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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10-06-2009, 03:02 PM
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If it's into the water jacket, it's probably for a factory hot-idle switch.
If it's into the manifold vacuum, it's probably for a factory anti-backfire valve.
Last edited by Argess; 10-06-2009 at 03:12 PM..
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10-06-2009, 03:14 PM
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CC Member
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Join Date: Feb 2008
Location: Jacksonville,
FL
Cobra Make, Engine: Kirkham #570 w Shelby FE
Posts: 1,009
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If I remember right, a temp actuated vacuum switch for the carbon canister (vapor recovery) system.
In other words a plug holder... |
10-06-2009, 03:25 PM
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Join Date: Nov 2006
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Cobra Make, Engine: SPF 2592, Shelby alum. 527
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My Blue Thunder intake has the same threaded opening. It's a second port in the front water passage. I put a threaded plug in mine.
Rodger
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10-06-2009, 06:49 PM
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Quote:
Originally Posted by RodgerH
My Blue Thunder intake has the same threaded opening. It's a second port in the front water passage. I put a threaded plug in mine.
Rodger
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Mine is Blue Thunder too and I have a threaded plug in it, just think it needs a little tape. Thanks!
__________________
“There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.”
www.partskeeper.com
(Less time searching, more time wrenching & driving)
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10-06-2009, 07:06 PM
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Senior Club Cobra Member
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Join Date: May 2007
Location: The Colony,
TX
Cobra Make, Engine: CSX 4973
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I put my temp sensor in that hole and put a thermostatic fan control where you have your temp sensor. On the new CSX cars there is a pink wire with the alternator wires that will control the cooling fans. The original street cars have a bung on the bottom of the expansion tank for the fan control. If you had a heater I believe you would use your current temp sensor position for one of the heater hoses.
Basically, put some Teflon tape on that sucker and forget about it.
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David
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