Cracked PPE up pipes common?

Dozerboy

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Jun 23, 2009
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I picked up a used set of PPE manifold's and up pipes from a member and found a crack in the driver's side up. They were on his triple turbo race truck. Is this what I have to look forward to if I install these as getting cracks repaired on them all the time? 210k miles on my factory ones and they still haven't cracked yet.

I found a guy that said he can tig weld them for me. he's not an expert but he's done exhaust before. Do we just weld up the crack and stack up another couple beads on the tacks on the exterior or do we try and fully well the exterior?
 

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2004LB7

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Dec 15, 2010
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I've only heard of the bellows cracking

If you have a choice I'd use nickel filler for the weld. For the increased ductility and resistance to cracking. Rods or filler for cast iron is typically nickel
 

1FastBrick

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You know, I was just questioning the fit up on mine. The passenger side is twisting the bellow when bolted down. The Down pipe is is slightly missed aligned too but much better. If i release the fit at the manifold, the below relax. I don't feel like pulling the manifold to angle cut it and hope it fixes the issue.

I was considering cutting them apart to relieve the tension and re-welding them in a relaxed position for better fit up.

I get it, China has the best cost so they can keep the Profitability high. But for fuck sake, there need to be some quality checks some where other than on the customer end.

I guessing it cracked 1 because of fit up, and 2 because the do more of a fusion weld and feed barley any material into it.

I would use a 309 stainless filler rod.

here is my passenger side issue.

drive one seems fine on mine....

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Last edited:

JoshH

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In both cases, I would reach out to PPE about warranty.
 

Bdsankey

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You know, I was just questioning the fit up on mine. The passenger side is twisting the bellow when bolted down. The Down pipe is is slightly missed aligned too but much better. If i release the fit at the manifold, the below relax. I don't feel like pulling the manifold to angle cut it and hope it fixes the issue.

I was considering cutting them apart to relieve the tension and re-welding them in a relaxed position for better fit up.

I get it, China has the best cost so they can keep the Profitability high. But for fuck sake, there need to be some quality checks some where other than on the customer end.

I guessing it cracked 1 because of fit up, and 2 because the do more of a fusion weld and feed barley any material into it.

I would use a 309 stainless filler rod.

here is my passenger side issue.

drive one seems fine on mine....

View attachment 129038View attachment 129039View attachment 129040
In this situation PPE will tell you to tighten it and use it. I've had this issue before and PPE is useless about it in my personal experience.
 

1FastBrick

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In this situation PPE will tell you to tighten it and use it. I've had this issue before and PPE is useless about it in my personal experience.
They are useless in general... I tried to get the little carb sticker that comes in the bag with the fuel fittings and they claim they don't have any more of the stickers. I showed them it was in the bag with no sticker, and the proof of purchase way back when. Said don't worry about, They should know...

Actually the law states the sticker should be present at the time of inspection or you should get a replacement from the manufacture...

I just a Rainman Rey installed The New L5P oil cooler kit and the PPE mounts hit the cross over tube. Mine is on the stand so I can't check. But now I am Curious. I don't want to find out when it goes in.
 

Bdsankey

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They are useless in general... I tried to get the little carb sticker that comes in the bag with the fuel fittings and they claim they don't have any more of the stickers. I showed them it was in the bag with no sticker, and the proof of purchase way back when. Said don't worry about, They should know...

Actually the law states the sticker should be present at the time of inspection or you should get a replacement from the manufacture...

I just a Rainman Rey installed The New L5P oil cooler kit and the PPE mounts hit the cross over tube. Mine is on the stand so I can't check. But now I am Curious. I don't want to find out when it goes in.

My merchant mounts clear just fine. That sounds like a PPE issue since the tube did not change positions (if we’re talking about the large front-to-back coolant pipe feeding the oil cooler).


Sent from my iPhone using Tapatalk
 

1FastBrick

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In Dozer boys case, they would likely ask for proof of purchase... He would probably better off fixing it himself and if possible I would Highly recommend fitting it up to see if it pulls the crack apart. If it does make said repair in that position other wise it will crack again when stressed.
 

Bdsankey

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26:38 minutes in so you don't have to suffer the whole thing.
Source: https://www.youtube.com/watch?v=1N2Fz4pOGOs
Yeah that's a PPE problem. No other mount I've seen has that issue. None of the sets I've installed had that issue either so I never paid attention to it. I am wondering if it's due to the tube not being seated in the housing, IE they didn't size things accordingly to clear installation/removal of the coolant tube.
 

1FastBrick

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Yeah that's a PPE problem. No other mount I've seen has that issue. None of the sets I've installed had that issue either so I never paid attention to it. I am wondering if it's due to the tube not being seated in the housing, IE they didn't size things accordingly to clear installation/removal of the coolant tube.
Guess will find out... or maybe I will just get the Merchant ones and save the dissapointment for something else....
 

1FastBrick

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Buy the originals, not the Chinese copies.
Unfortunately, The Communist Republic of California want's a CARB E.O. number...

Does the manifold or the pipe affect the emissions the engine puts out? No, But they need that Bribe money to say it's ok to use...

The only thing that will significantly affect any basic Newer engine and it's emissions output is going to be the tuning, or hard parts on the engine itself.

Ok, I am done now... :mad:
 

Bdsankey

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That cooler was actually a Banks unit.... Or are they taking the L5P cooler, maybe tweaking something and boxing it as theirs?
Banks is literally buying GM parts, machining an adapter to take a 1/8NPT probe, adding an AmsOil filter and selling them for a 100-150% markup.


I've been selling the same kit for awhile at $100 less while maintaining proper GM pricing.............. They're making bank.
 

Dozerboy

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Jun 23, 2009
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In both cases, I would reach out to PPE about warranty.
Ya mine are used from a member. So I'm SOL on that. Hopefully the fit way better 1fastbrick or I'm really not going to be happy. No way I try to fix new ones unless the return policy was up.
 

kidturbo

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Jul 21, 2010
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Cracks are unavoidable in rigid turbo piping. Never lasts very long, like weeks. So the bellows designed to solve that problem, made of any quality, and welded correctly, should outlast the pipes.

I got nothing for those flanges...

:unsure:
 

1FastBrick

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Cracks are unavoidable in rigid turbo piping. Never lasts very long, like weeks. So the bellows designed to solve that problem, made of any quality, and welded correctly, should outlast the pipes.

I got nothing for those flanges...

:unsure:
On mine, it's just the stress it applies when its seated. I could try milling the manifod flange at an angle so that it seats more flat and put no stress on the bellow.