Author Topic: Broken Manifold Bolt Therory (Read 1394 times)

TJJim · « **on:** February 06, 2006, 09:32:27 PM »

I've been contemplating this for a while. So here it goes.

My bolt broke after my 4" lift was installed. I used the T-case drop and am still using it. I still have a recurring exhaust leak, solved by the tightening of the flange bolts every so often. On 2.5l TJ's there is a hanger on the cat that attaches to the skid plate. The lowering of the the skidplate stresses the exhaust manifold or header enough to cause the rear bolt to shear. I belive that the only way to solve this, short of insalling a SYE, is to fab up a bracket and mount it to the frame. This should also work with aftermarket skid plates as well.

There it is.

Jim

Bounty Hunter · « **Reply #1 on:** February 07, 2006, 05:45:21 AM »

They commonly break on jeeps with no transfer case drop, both front and rear exhaust manifold studs.

There is a TSB issued for it, the stealership fixed mine for free even though it was way out of warranty.

Jeffy · « **Reply #2 on:** February 07, 2006, 11:41:44 AM »

There's even a class action but it's only for the 4.0L's.

Bounty Hunter · « **Reply #3 on:** February 07, 2006, 12:09:36 PM »

And I had always heard about it more with the 2.5L :shock:

The 4.0L boys should do a class action ref. the exhaust manifolds :P

Jeffy · « **Reply #4 on:** February 07, 2006, 01:03:32 PM »

Oh wait, I think it is for the manifold. :roll:

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Author Topic: Broken Manifold Bolt Therory (Read 1394 times)

TJJim