Smashing Exhaust

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MikeDCherokee

NAXJA Forum User

Location

wichita kansas

• Jun 11, 2007

• #1

I'm having a problem of smashing the exhaust right above the front driveshaft. It is the first bend towards the back coming down from the exhaust manifold. It has done it twice. (I'm sure it's the driveshaft hitting it.) Any suggestions on what may be causing that?

 

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Mbjeep91

NAXJA Forum User

Location

Arlington Ohio

• Jun 11, 2007

• #2

I have the same problem! When i first saw it i couldn't believe that the bumpstops wouldn't keep enough clearance between the driveshaft and the exhaust, but that is the driveshaft is the only thing that could have done the damage. I'm not completely sure about this but maybe longer bumpstops would help?

 

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XJMarty

NAXJA Forum User

Location

Czech Republic

• Jun 11, 2007

• #3

mine is smasnig it too....

 

Begster

NAXJA Forum User

Location

Cape Cod/Boston, Mass

• Jun 11, 2007

• #4

If you guys are talking about the pinched exhaust part right behind the flange of the manifold, your driveshaft isn't hitting it, that was there from the factory...

 

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MikeDCherokee

NAXJA Forum User

Location

wichita kansas

• Jun 11, 2007

• #5

No. it is right at the first bend. I replaced mine with a new one and it wasn't there...now its dented again.

 

Begster

NAXJA Forum User

Location

Cape Cod/Boston, Mass

• Jun 11, 2007

• #6

Pictures?

 

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MikeDCherokee

NAXJA Forum User

Location

wichita kansas

• Jun 11, 2007

• #7

At work...can't take pictures until tonight.

 

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Wounded XJ

NAXJA Forum User

Location

Rimrock, AZ

• Jun 11, 2007

• #8

Mine has done that as well. The dents in the pipe and the scratches on the ds line up. The way the pipe is bent I'm sure it was not a rock.

 

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Stumpalump

NAXJA Forum User

Location

Franktown Co.

• Jun 11, 2007

• #9

Mine hits too. I thought that was normal. I beat mine back with a hammer but I read on the engine performance forum that you should loosen the moter mounts and scoot the engine over. I guess you could adjust the trackbar to move the axel over.

 

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badron

NAXJA Forum User

Location

Ohio

• Jun 11, 2007

• #10

should loosen the moter mounts and scoot the engine over.
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As well as:

Is the pipe over sized? hanging low?
Are the motor/trany mounts good? Could a torque strap or stiffer engine mounts help? How old and what type of stops are you using? Stock stops do give as they are made to do so. Sucking up some of the blow instead of your kidneys. If all is stock you should not need to lower stops to save the poop pipe. (IMO)

 

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Lukipela

NAXJA Forum User

Location

Fredrick MD

• Jun 11, 2007

• #11

I had that problem too, but mine never got crushed, just a little dented and scratched up. It is the front drive shaft hitting it and putting in longer bump stops will cure the problem, or at least that is what cured it on mine.
The bump stops I put in are about 3" longer then the stock ones but you should only need to put in ones that are about 1" longer then the stock ones to cure the problem. Also mine only started to rub and dent the pipe after I disconnected the front sway bar so im guessing that could be when you guys started to dent yours.

 

JNickel101

NAXJA Forum User

Location

Alamogordo, NM

• Jun 11, 2007

• #12

if you do a TC drop and don't remove or adjust the exhaust mount that goes betweet the Tranny and the tranny mount, it will push your exhaust over into the DS.....