Intake/Exhaust Manifold
#1
Thread Starter
CF Veteran
Joined: Jul 2009
Posts: 1,640
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
Intake/Exhaust Manifold
When I install my Intake/Exhaust manifold, Should i use any type of sealent besides the felpro gaskets? If so what type specifically?
#2
Seasoned Member
Joined: Jul 2010
Posts: 491
Likes: 1
From: Central Florida
Year: 1999
Model: Cherokee
Engine: 4.0
I would only use a couple of drops of mr. gasket but only to help hold the gaskets in place during install. Adding liquid sealant would be very tricky on a exhaust or intake manifold. The sealant my liquify when expposed to heat and run into the manifolds from the inside and cause build up(not to mention burning on the exhaust manifold). A good replacement gasket is all you need.
#3
CF Veteran
Joined: May 2008
Posts: 5,188
Likes: 6
From: Bristol,Pa
Year: 94
Model: Cherokee
Engine: 4.0L
Just your new gasket.
Make sure the intake is properly lined up on the dowells, and take the bolts in evenly and slowly to avoid any possible vacuum leaks. Lotsa guys do this incorrectly.
Make sure the intake is properly lined up on the dowells, and take the bolts in evenly and slowly to avoid any possible vacuum leaks. Lotsa guys do this incorrectly.
#4
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Joined: Jul 2009
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
Are there any type of guide pins on the motor to help align things bc i am going to be by myself. and what do yall use to clean the surfaces?
Sorry for all the questions but i am just trying to get all my questions out there before i start thing tomorrow
Sorry for all the questions but i am just trying to get all my questions out there before i start thing tomorrow
#5
CF Veteran
Joined: May 2008
Posts: 5,188
Likes: 6
From: Bristol,Pa
Year: 94
Model: Cherokee
Engine: 4.0L
Razor scraper for the head mating surface. Try not to get old gasket material in intake/exhaust ports. You could stuff paper towels in to help aid this.. then pull them out.
The gasket has holes to line up with front and rear studs for header.. and holes for dowells on intake. It'll stay in place without any adhesive.
Mine is stripped down right now if you should need any pics. I still have to reinstall everything.
The gasket has holes to line up with front and rear studs for header.. and holes for dowells on intake. It'll stay in place without any adhesive.
Mine is stripped down right now if you should need any pics. I still have to reinstall everything.
#6
Registered Users
Joined: Sep 2009
Posts: 1,371
Likes: 2
From: morrisonville ny
Year: 2000 @ 1994 givin away
Model: Cherokee
Engine: 4.0
Make sure its the metal gasket that you useMake sure you dont just start to tighten the bolts down follow the pattern in the haynes book or the fsm a little at a time and you wont have a leaker, good luck (you can do it )
Last edited by rich; 07-26-2010 at 03:03 PM.
#7
Thread Starter
CF Veteran
Joined: Jul 2009
Posts: 1,640
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
Razor scraper for the head mating surface. Try not to get old gasket material in intake/exhaust ports. You could stuff paper towels in to help aid this.. then pull them out.
The gasket has holes to line up with front and rear studs for header.. and holes for dowells on intake. It'll stay in place without any adhesive.
Mine is stripped down right now if you should need any pics. I still have to reinstall everything.
The gasket has holes to line up with front and rear studs for header.. and holes for dowells on intake. It'll stay in place without any adhesive.
Mine is stripped down right now if you should need any pics. I still have to reinstall everything.
I believe i have the metal one from felpro. Yeah i only want to do this once
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#8
CF Veteran
Joined: Jan 2009
Posts: 1,964
Likes: 6
From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
X2 on this! After spending 1.5 days reinstalling my head gasket I was wore out and just wanted to get it over with and rushed the intake/exhaust bolts. Well sure enough next day on my test drive it was sputtering and hardly moving from an intake leak. Re-did it all by the book and it was fine.
#9
Thread Starter
CF Veteran
Joined: Jul 2009
Posts: 1,640
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
X2 on this! After spending 1.5 days reinstalling my head gasket I was wore out and just wanted to get it over with and rushed the intake/exhaust bolts. Well sure enough next day on my test drive it was sputtering and hardly moving from an intake leak. Re-did it all by the book and it was fine.
I didnt see a torque pattern for the intake/exhaust manifold in the fsm. Is it the same type pattern as the head?
#11
Member
Joined: Jun 2010
Posts: 155
Likes: 1
From: Easthampton, MA
Year: 1999
Model: Cherokee
Engine: 4.0
I'm gonna be doing this same job in a few weeks(exhaust leak, and possible cause of cyl 1 miss). Is it 100% necessary to pull the fuel system apart? Or can it be done without that? If I do have to disassemble the fuel line I am sure i will have to replace the Orings right?
#12
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CF Veteran
Joined: Jul 2009
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
I'm gonna be doing this same job in a few weeks(exhaust leak, and possible cause of cyl 1 miss). Is it 100% necessary to pull the fuel system apart? Or can it be done without that? If I do have to disassemble the fuel line I am sure i will have to replace the Orings right?
I have the same problem as you, cracked manifold (getting welded when i take it off) and a CE light for cylinder 1 misfire. I dug a little deeper and found that i have low compression in that cylinder. Plus it idles like crap. Hopefully i will find the culprit. I forgot to do a wet compression test to see if it was the rings, so i am doing that tonight. And if its not the rings i am tearing into it. I should have done a leak down test, but didnt have the right equipment
#13
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Joined: Jul 2009
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
#15
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Joined: Jul 2009
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From: Keesler AFB, MS
Year: 1998 XJ
Model: Cherokee
Engine: 4.0L
Just the way it should look prior to installing everything.
Did you go by the FSM or just removed what look like needed to be removed.