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Unread 08-22-2013, 09:56 PM   #1
College94YJ
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1994 YJ Wrangler 
 
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stuck exhaust bolt

I managed to strip the bolt in the exhaust manifold the goes through the flange on the exhaust pipe. Are these bolts welded into the manifold? I wanted to try re thread it but it's hard to get a die up in there and twist it. Anybody know the exact size and thread pitch of the nut? I could try a new one. Mines pretty trashed so its hard to tell.

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Unread 08-22-2013, 10:05 PM   #2
Tom95YJ
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Quote:
Originally Posted by College94YJ
I managed to strip the bolt in the exhaust manifold the goes through the flange on the exhaust pipe. Are these bolts welded into the manifold? I wanted to try re thread it but it's hard to get a die up in there and twist it. Anybody know the exact size and thread pitch of the nut? I could try a new one. Mines pretty trashed so its hard to tell.
They are not welded but yours are probably rusted solid
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Unread 08-23-2013, 12:05 AM   #3
jokerchief462
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They go in the flange just like a wheel lug. Check for clearance in the heat shield and pound it out. Use some PB to help out. Going back in may be difficult but possible. You can get new ones online factory Chrysler parts or a Mopar site. If you need it I can look it up just ordered two last month.
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Unread 08-23-2013, 06:41 PM   #4
College94YJ
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So your saying its threaded in?
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Unread 08-23-2013, 06:52 PM   #5
jokerchief462
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No threads. It is like a wheel stud. has the splined edges to keep it in like putting new studs in the axle.

You can actually remove them with the tap of a hammer. There is a clearance issue with the heat shield but you can move that using a screwdriver and hammer from below. Putting them back in could be difficult to get them to seat all the way but with astack of washers or a spacer you can get it done.

Here is what the shank looks like
stud.jpg

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Unread 08-23-2013, 07:04 PM   #6
jokerchief462
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Go here and look at #10 and #11 this is for a 2.5L MPFI engine exhaust manifold stud.

http://www.factorychryslerparts.com/...driveLine=7143

These are dealer parts only and they are expensive at a delaer. You can get these in a week and they are correct.
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