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exhaust manifold removal


 
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disorder
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Joined: 01 Aug 2006
Location: Coquitlam, BC

PostPosted: Tue Apr 03, 2007 6:42 pm    Post subject: exhaust manifold removal Reply with quote

i'm gonna be removing the cracked one and replacing it, thought i'd ask the guys/gals that have done it and see if they got any tricks on this one. any info on what worked for you and what didn't would be great.
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Code3TJ
Hacker
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Joined: 01 Jan 2004
Location: Uzbekistan

PostPosted: Wed Apr 04, 2007 12:57 am    Post subject: Reply with quote

Not sure what model it is, but make sure it's completely cool, use a wire brush to clean off the bolts and use lots of PB Blaster if they're rusted. Also, use a jack stand to support the down pipe once you get it disconnected.
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disorder
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Joined: 01 Aug 2006
Location: Coquitlam, BC

PostPosted: Wed Apr 04, 2007 4:15 pm    Post subject: Reply with quote

oh jeez sorry dude, its a 98 xj with the 4.0

yeh thats what i figured, its a pita no matter what eh.
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c130herc
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Joined: 11 Oct 2006
Location: North Texas

PostPosted: Fri May 04, 2007 12:56 pm    Post subject: Reply with quote

Remove the airbox, and the intake, that involves removing the throttle cable so you can lay it over to the side without completely taking it out. Go slow removing the head bolts. Use the PB on them like stated above.
You will also need to remove the fuel rail. The injectors have little metal clips on top that hold them into the rail. Just pull the clips then just tug the rail off, be careful with the injectors. Some XJs have a heat shield that will need to be removed also, it has just a few bolts.
Go ahead and buy you a new intake gasket.
Clean the gasket surface well. I use acetone to remove all oil and other stuff before I put the gasket on.
If your exhaust has bolts on the combiner flange then get new ones. I would buy grade 8 for the fact if you need to remove them they are strong even after they rust some from the heat. If they are studs then clean them good. Buy a new exhaust doughnut gasket.
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