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FE TALK
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| dcdoug |
10-06-2009 12:35 PM |
Intake manifold plug - what is this for? (noob question)
3 Attachment(s)
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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| Gunner |
10-06-2009 01:00 PM |
Probably for PCV inlet and/or auxiliary vacuum connections.
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| Excaliber |
10-06-2009 01:08 PM |
Wait, it's leaking WATER, can't be a vacuum fitting. DOH!! :)
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| computerworks |
10-06-2009 01:10 PM |
Temp sensor?
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| RedBarchetta |
10-06-2009 01:15 PM |
Quote:
Originally Posted by dcdoug
(Post 990726)
"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? :LOL: |
| dcdoug |
10-06-2009 01:16 PM |
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).
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| rustyBob |
10-06-2009 01:33 PM |
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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| dcdoug |
10-06-2009 01:51 PM |
Quote:
Originally Posted by RedBarchetta
(Post 990736)
I'm sure there are a few gazillion threads on this topic? :LOL:
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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. |
| Gunner |
10-06-2009 02:03 PM |
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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| Excaliber |
10-06-2009 02:09 PM |
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.
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| dcdoug |
10-06-2009 02:12 PM |
I guess regardless, pulling the plug, taping it and putting it back should solve my problem right?
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| Excaliber |
10-06-2009 02:23 PM |
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.
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| Ken Oikawa |
10-06-2009 02:23 PM |
Plug...can be used for 2nd temp sensor... see my pic..
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| dcdoug |
10-06-2009 02:26 PM |
I guess that's the answer!
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| Argess |
10-06-2009 03:02 PM |
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.
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| Ronbo |
10-06-2009 03:14 PM |
If I remember right, a temp actuated vacuum switch for the carbon canister (vapor recovery) system.
In other words a plug holder...:LOL:
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| RodgerH |
10-06-2009 03:25 PM |
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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| dcdoug |
10-06-2009 06:49 PM |
Quote:
Originally Posted by RodgerH
(Post 990806)
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! |
| damdfw |
10-06-2009 07:06 PM |
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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