Delicate Original Exhaust?
Yesterday I was tearing down my engine to replace the proverbial 0331 cracked cylinder head. When I unbolted the exhaust manifold, I pulled it away from the head and the exhaust pipe snapped in two right behind the first flange.
Now, I've worked on many an engine and I never had to disconnect the exhaust manifolds from the exhaust pipe. Nothing ever broke. My XJ has just over 100,000 miles and appears to have the factory exhaust. Is the factory exhaust delicate and, therefore, I was a bonehead for not disconnecting the exhaust manifold from the exhaust pipe? Or, is the exhaust just likely rusted and required replacement anyway? |
Originally Posted by Klutch
(Post 3040228)
Is the factory exhaust delicate and, therefore, I was a bonehead for not disconnecting the exhaust manifold from the exhaust pipe? Or, is the exhaust just likely rusted and required replacement anyway?
You can probably find one at a junk yard in decent shape for cheap, but it'll have to come from an '00 or '01 to be a direct fit. Walker makes a new replacement ( ). Or you can probably get a local muffler shop to make you one for the same price or less. |
Yeah, I should have known better.
I know a guy who owns a great muffler shop. He hooks me up with a discount because we're both members of a Mustang club. Once I get my Jeep put back together, I'll bring it by his shop. But it sure is a bummer that yet again there's something else to fix on my XJ. I've owned it less than a month and I've been working on it almost non-stop. |
Originally Posted by Klutch
(Post 3040336)
I've owned it less than a month and I've been working on it almost non-stop.
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Originally Posted by extrashaky
(Post 3040343)
LOL. Get used to that. It's a teenage vehicle, so it's going to have issues.
I expected some issues, but SHEESH! I owned a 1997 XJ for 14 years. It was a good, solid, reliable vehicle for well over 100,000 miles. That's why I bought this one. It's really clean and has just over 100,000. But so far I've: - Drained and filled the rear diff, transfer case, transmission and engine oil - Replaced a tie rod end and drag link - Had the front suspension aligned - Replaced the front washer pump - Flushed the cooling system and replaced the radiator - Installed a new tilt steering cable Then I found out I have a cracked cylinder head. When I went to fix that, I saw the power steering pump reservoir is leaking, so I'm replacing that. And now the exhaust pipe breaks. Oh well. Men plan. God laughs. :) |
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You can find a brand new manifold on Ebay for less than $100. So it's not terrible on the wallet to replace.
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Originally Posted by PurpleToxin505
(Post 3040352)
Yeah they crack pretty easily
That's a completely different manifold than whats on a 2000 or 2001. |
Thanks, guys.
It's not the manifold that broke. The exhaust pipe that bolts to the manifold broke. It snapped very cleanly off the flange where it bolts. After looking at it, I think it was about ready to break anyway. It didn't even bend or pinch; just snapped off. Oh, and I also replaced the spark plugs and front brake pads and had the rotors turned. All normal maintenance, but my XJ needed it all at once. I actually expected everything but the cylinder head and power steering pump. |
Originally Posted by jeepkid03
(Post 3040396)
That's a completely different manifold than whats on a 2000 or 2001. |
Last night I rolled under the Jeep with a drop light and took a hard and close look at the exhaust. Strangely, it appears the exhaust pipe was pressed into the flange behind the exhaust manifold. It appears nothing broke and the exhaust pipe just pulled out of the flange.
I'm going to unbolt the flange and see how this is supposed to go together. Does anyone have experience with this fitting on a 2000 XJ? |
Some more fuel on your fire...
Worn or broken motor/trans mounts can *maybe* cause the exhaust to fail like yours did. Could possibly put the flange in a bind. Or, your exhaust had some severe damage at some point. I had a '72 Charger that had one side of the exhaust flange bust out all the time due to the engine twisting under load. Great fun at stoplights. Oh to be 20 again..... |
Originally Posted by diskman
(Post 3041221)
Some more fuel on your fire... Worn or broken motor/trans mounts can *maybe* cause the exhaust to fail like yours did. Could possibly put the flange in a bind. Or, your exhaust had some severe damage at some point. I had a '72 Charger that had one side of the exhaust flange bust out all the time due to the engine twisting under load. Great fun at stoplights. Oh to be 20 again.....
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