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Unread 01-11-2015, 07:07 PM   #1
Shadowkai
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1998 XJ Cherokee 
 
Join Date: Aug 2014
Location: Denver, CO
Posts: 18
Cleaning exhaust manifold?

While under the hood today, diagnosing a heater issue, I noticed the exhaust manifold is quite rusted but it appears to be surface rust without serious penetration. Considering the Jeep was in New England for 16 years is it worth replacing the part or is there a practical way to clean and seal it? No symptoms of cracks or failure (yet!).

If the manifold should be replaced, has anyone used the kind with expansion sleeves welded onto the tubes? Any opinion? Link below.

http://www.ebay.com/itm/Stainless-St...del%3ACherokee

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Unread 01-12-2015, 06:48 PM   #2
CJ7-Tim
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2000 XJ Cherokee 
 
Join Date: Apr 2002
Location: out in the garage - Minneapolis, Minnesota
Posts: 22,256
The exhaust manifold does not need cleaning or sealing. Like the rest of the exhaust system, if the manifold fails, you replace it.
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Unread 01-12-2015, 08:37 PM   #3
PaYankee
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1999 XJ Cherokee 
 
Join Date: Nov 2011
Location: Newnan, GA
Posts: 238
Don't replace it until it cracks. I replaced the exhaust manifold in both of my jeeps with ones with expansion tubes. No problem with either. One has 30k miles and the other 5k on the exhaust manifolds.
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