intake gasket
engine 302 with a edlebrook intake, in a 79 f100
intake gasket
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
On my 390, I've had better luck using silicone along the block with no gasket. I just run a thick bead and let it set up a few minutes and set the intake on. Be sure not to smear it around when you set down the intake, and let it dry for a couple hours before you fire it up.
Marty
Marty
Posting Guru
Joined: Feb 2002
Posts: 2,404
Likes: 3
From: Cleveland, WI USA
I'd use both. I'm sure prople have gone without the seals with success, but I'm a little leary about an RTV bead that big. There's no real harm in usnig the seals in my opinion.
Kevin K.
Kevin K.
Thread Starter
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New User
Joined: Dec 2003
Posts: 10
Likes: 0
From: south carolina
thank for the help, I just did put every thing back together the intake the carb all the hoses started filling the radiator with coolant and I noticed coolant coming out the driver's side rear of the intake, back to the drawing board. I was just a little upset? spent the whole day on that truck running around getting part. I put the gaskets on right , I was wonder did I over torque it to cause it to leak
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Elder User
Joined: May 2003
Posts: 967
Likes: 0
From: Southern NJ
Could be,, should Always torque to the specs listed,, not before,, not after. If that is indeed the case,, some more sealant will do the job instead of having to replace the whole gasket. Make sure you allow at least a few hours past the specified amount of time alloted for seals to set and dry. Those nasty variables like relative humidity and temperature can and usually do affect the times.
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Joe Kucinski
Lead Driver
Joined: Feb 2000
Posts: 5,373
Likes: 46
From: Palm Bay, Florida
Back many years ago my friends and I used to change/swap intake manifolds on 289s/302s weekly, sometimes even used the old gaskets over and never had a leak, seldom used a torque wrench, and now lately after a thorough cleaning and new gaskets, and using the cork gaskets at the ends and silicone as well I've had more leaks than I care to talk about, doesn't make any sense, I would use the cork gaskets with a little silicone on both sides of them, I really don't agree with not using the gaskets and just using straight silicone.
Elder User
Joined: Feb 2003
Posts: 760
Likes: 0
From: Boise, ID
A big bead of black Permatex is my favorite method of sealing the ends. It looks nice and works well when done right.
I hate the squirmy cork gaskets. And no matter how well you seal the corners of the nice rubber end gaskets, they still end up leaking after awhile.
I've never had any leaks with black Permatex.
I hate the squirmy cork gaskets. And no matter how well you seal the corners of the nice rubber end gaskets, they still end up leaking after awhile.
I've never had any leaks with black Permatex.
Thread Starter
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New User
Joined: Dec 2003
Posts: 10
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From: south carolina
I'll try the permatex, instead of the cork ends hopefully that will do the trick. I think I saw that on hot rod tv one day, any one know the torque specs on a alumium intake thanks, andrew143
Elder User
Joined: Jun 2003
Posts: 686
Likes: 1
From: Edgewood, Wa
A fat bead of goop will seal up better than any end seal..er end leaker.... thats all i use on my own rigs, and on my customers rigs at my shop. if done right, will NEVER leak, and wont "fall off and get into engine". if you really want good goop, use a product called "the right stuff", available at all popular parts stores. its expensive, but will last forever.
Laughing Gas
Joined: Jul 2000
Posts: 851
Likes: 15
From: Elkton, MD
when I put the edelbrock intake on my 400, I tried to use the rubber end gaskets, they would not fit with the intake torqued down. The gaskets were to tall so I took them out and ran a think bead of blue goo, have not had a leak after 1k miles.
