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Intake gaskets!
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Thread: Intake gaskets!

  1. #1

    Join Date
    Apr 2006
    Location
    St.C Ohio, 43950
    Posts
    433

    Intake gaskets!

    I have a buddy who bought a CJ-7 off of me that has a 360 in it. When i had it i put an edelbrock performer on it and the kid had her a lil bit hott quite a few times and sure enough the motor finally blew .....but he had since put in another 360 and is trying to get the intake to seal on the new motor......it must have warped or something??? No matter what he tries the engine still seeps coolant from the upper pass. side of the intake and the valley pans just arent cutting it.......is there a regualr type of gasket that can be used instead of the stamped valley pan?
    1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!

  2. #2
    Thank you from BT ULTIMUS MAXIMUS STATUS jeepsr4ever's Avatar
    Join Date
    Dec 2002
    Location
    Minnesota
    Posts
    10,042
    You can cut the sheet metal valley pan gakset and run a racing gasket. The valley pan gasket helps keep the oil out of the PCV and carb. Engine vaccum will suck alot of oil if you dont have a baffle of some kind.
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  3. #3

    Join Date
    Jan 2005
    Location
    Middletown, PA
    Posts
    590
    Do you need to run both the valley pan and the baffle that rivets to the underside of the intake manifold?

    The reason I ask is I am selling the OEM cast iron intake, but we pulled the baffle off the bottom and transferred it to our new Edelbrock Performer intake. I had another old intake, but when I removed that baffle, there is a hole rusted thru the one side.

    I'm trying to come up with a baffle for the buyer of this intake, but if the baffle isn't really needed if you have a valley pan, I'll just tell the buyer not to worry about it.

  4. #4

    Join Date
    Jun 2006
    Location
    '69 AMX 12.60@107 - Ohio, unfortunately (:-P)
    Posts
    942
    for reference the Valley Pan is Fel-Pro #MS 96011

    The "Standard Style" AMC Intake Gaskets that I have are Mr. Gasket.
    They are black fiber looking are marked part number 5844 on the package
    and say "Ultra-Seal Premium".

    There are NO silicone bead(s) on them though, just plain.

    For Jegs, the part number is 720-5844 for the Ultra Seal material.

    For Jegs, the part number of 720-800G is Standard material.

  5. #5
    Thank you from BT Master Mechanic
    Join Date
    Mar 2005
    Location
    MN
    Posts
    307
    I have been tossing the valley and running the composit Mr. Gasket intake gasket.

    I then use a filter (push in type like off a valve cover) on the PVC valve hole in the back of the intake. I then take a PVC valve and run it line from the filler tube to the bottom of a carb...or carbs in my case.

    I believe that this 'reverse system' works fine and the filler tube is tall enough to keep the engine from sucking oil. It may not be the best set up if a person is going to see water and mud above the intake though... simple, fast and works.

    And a down side is he hot oil has direct contact with the bottom of the intake. But a guy could make a baffle or use the old one.
    If this new part can't break....what old part will??

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