4in. Downpipe
Thread Starter
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Cargo Master
Joined: Jun 2010
Posts: 2,771
Likes: 3
From: Louisiana
4in. Downpipe
Has anyone had issues with the downpipe not tightening up on the exaust housing. I tightened the clamp as tight as I could and without the tailpipe attached I can still move the downpipe back and forth like it's on a hinge. My trucks 4 door long bed dually and when it flexes it hits on the head and makes all kinds of horrible racket. I'd love to get this fixed . Help is appreciated!!!
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Hey David. I had a problem with that clamp and striped the threads on it. I bought a new one at Ford (37.00), but I needed it then.
Can you come to my shop Saturday, around 1:30? We can do the stuff we talked about and see what we can do with that downpipe.
Can you come to my shop Saturday, around 1:30? We can do the stuff we talked about and see what we can do with that downpipe.
Thread Starter
|
Cargo Master
Joined: Jun 2010
Posts: 2,771
Likes: 3
From: Louisiana
Has anyone had issues with the downpipe not tightening up on the exaust housing. I tightened the clamp as tight as I could and without the tailpipe attached I can still move the downpipe back and forth like it's on a hinge. My trucks 4 door long bed dually and when it flexes it hits on the head and makes all kinds of horrible racket. I'd love to get this fixed . Help is appreciated!!!
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
If your clamp is not striped, then I don't think you will need a new one.
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
I had the same problem with mine. The threads on the clamp wore off and I didn't know it. I didn't touch it for two years, then one day I started smelling exhaust in the cab. Looked under the hood and saw black exhaust streaks on the downpipe right under the clamp. Looked at the clamp, and I could rotate it around by hand. It finally gave up on me and snapped loose.
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
It might just be the nut on the clamp is slightly stripped. They are a metric m27 or m28 iirc. You could also double nut it and use some locktite.
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Cargo Master
Joined: Jun 2010
Posts: 2,771
Likes: 3
From: Louisiana
Thanks guys. Rick and I will see what we can do. We also plan on doing some data loging on my truck and my company truck and see why the company truck seems to run so much better than mine.
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Senior User
Joined: May 2002
Posts: 298
Likes: 0
From: San Diego, CA
I just put in a 4" mbrp downpipe and tightened the crap out of the stock vband clamp. It hung tight and I drove it to the muffler shop like that. Nothing else held it but the v-band clamp.
I suggest getting a new v-band clamp.
I suggest getting a new v-band clamp.
you can't fix stupid!
Joined: Mar 2008
Posts: 1,906
Likes: 2
