Intake Manifold Underside Baffle

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Kowpie
Posts: 104
Joined: Wed Jun 10, 2020 3:41 pm
Location: Southern Oregon

Intake Manifold Underside Baffle

Post by Kowpie » Mon Jan 23, 2023 3:28 pm

Hello
Does anyone have a baffle that attaches to the bottom of the intake manifold on the AMC-Jeep V-8"s? I just pulled an aftermarket intake from my 304 to replace gaskets and it is missing. I have been wondering why I'm getting oil sucked in through the PCV valve??? Here is a picture for reference.
s-l640.jpg
You can email me at GB3440@yahoo.com or reply here.

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'73 J4000, 6000#, 258, T18/D20, 4.11 (working on it and leaving it stock so I can use it!)
'78 Wagoneer, 401, TH400/QT, sitting in the weeds waiting for attention.
'79 CJ7, 304, T18/D20, 35", 4.56, SOA, shackle reversal.

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Stuka
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Re: Intake Manifold Underside Baffle

Post by Stuka » Mon Jan 23, 2023 3:53 pm

Hopefully somebody has one. I am not aware of any aftermarket solutions for it. And it most certainly would cause you to get oil through the PCV.

If you have a non-EGR intake, you can get away with just the rear section. Which I have seen people hand make out of sheet metal. But this shield is really important if you have a functioning EGR, as the oil will cook on the bottom of the intake over time.

Also, do note that there are two styles of that baffle. A non-EGR baffle will not work on an intake with EGR. The photo you posted is an EGR style.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1981 J10, 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ

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Kowpie
Posts: 104
Joined: Wed Jun 10, 2020 3:41 pm
Location: Southern Oregon

Re: Intake Manifold Underside Baffle

Post by Kowpie » Mon Jan 23, 2023 3:56 pm

Thanks for the info Stuka. My intake is the EGR style. As you stated, if I cannot find one I'll probably fab something up.
'73 J4000, 6000#, 258, T18/D20, 4.11 (working on it and leaving it stock so I can use it!)
'78 Wagoneer, 401, TH400/QT, sitting in the weeds waiting for attention.
'79 CJ7, 304, T18/D20, 35", 4.56, SOA, shackle reversal.

User avatar

Topic author
Kowpie
Posts: 104
Joined: Wed Jun 10, 2020 3:41 pm
Location: Southern Oregon

Re: Intake Manifold Underside Baffle

Post by Kowpie » Fri Jan 27, 2023 10:20 am

Found the part. Adam from Jeep Recyclers had it. Great folks to deal with.
'73 J4000, 6000#, 258, T18/D20, 4.11 (working on it and leaving it stock so I can use it!)
'78 Wagoneer, 401, TH400/QT, sitting in the weeds waiting for attention.
'79 CJ7, 304, T18/D20, 35", 4.56, SOA, shackle reversal.

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