Up-pipes
Got Data?
Joined: Dec 2012
Posts: 4,266
Likes: 1,400
From: Lake Stevens, WA
I'm just watching mine at 270K. Not leaking yet.
You'd know it pulling or hauling heavy at WOT, if boost was not getting up to 17psi on a stock truck. You can view this as Manifold Gauge Pressure (MGP) on the Forscan or Forscan Lite app, or with a dedicated boost gauge.
If boost is good, and you can't see any soot on the up pipes at the collector, manifolds or firewall, I'd say leave it and run it.
You'd know it pulling or hauling heavy at WOT, if boost was not getting up to 17psi on a stock truck. You can view this as Manifold Gauge Pressure (MGP) on the Forscan or Forscan Lite app, or with a dedicated boost gauge.
If boost is good, and you can't see any soot on the up pipes at the collector, manifolds or firewall, I'd say leave it and run it.
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Freshman User
Joined: Aug 2020
Posts: 41
Likes: 0
Getting ready to put in a new transmission, any upside to pairing theses two? Aint broke dont fix but trying to stay ahead of 7.3 maint curve. I dont have a boost gauge so is soot the first visual or anyother indivators?
Laughing Gas
Joined: Jun 2018
Posts: 863
Likes: 96
From: Idaho
I don't notice any soot on my firewall, but after reading all of the comments on the oem up-pipes leaking I did a little further investigation. I noticed some small black streaks near what they call the babies butt. So I can assume they are leaking, and that is probably what I would suggest. Just assume they are leaking and get some bellowed up-pipes when doing your transmission. There is a recent post from KC Turbos about checking for up-pipe leaks. Would be worth trying out....
Fleet Mechanic
Joined: Apr 2019
Posts: 1,737
Likes: 661
From: South AR
NO better time besides when the cab is off to do it. For the minimal cost well worth it. One of the rare times Dorman or other aftermarket like XDP OK to use. ALL are leaking at least some at this point or about to. You know what will happen if you don’t...
Fleet Mechanic
Joined: Nov 2009
Posts: 1,383
Likes: 193
From: Cambs, England
I didn't think that mine were leaking, nothing obvious, but when I changed them as part of some necessary maintenance & future preventative maintenance, it was clear that they had been leaking as there was some soot around the baby's butt end of the pipes & they were a loose fit.....
Fitted the bellowed up pipes from Riffraff, great quality & fit.
Fitted the bellowed up pipes from Riffraff, great quality & fit.
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Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Youll look for soot streaks on the pipes just below the collector. That black is not a shadow in the pic above.
I never see stock up-pipes that aren’t leaking.
The transmission being out doesn’t make up-pipes that much easier to me. I still want to pull the turbo and replace turbo and pedestal o-rings, DIY delete EBPV, crank WG adjuster all the way down, etc.
Riffraff’s bellowed up-pipes are the best. I no longer recommend Dorman or other carbon steel up-pipes. They fit and function fine, but will eventually rust out ‘up north’.
Here’s a little write-up I did awhile back. I’ve done lots and lots of up-pipes on these trucks.
https://www.ford-trucks.com/forums/1...lete-pics.html
Good luck and keep us posted!
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Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Just so you know, xdp is most likely just re-selling the cheapest chinesey junk you can buy on fleabay. My guess is they cost <$40 on alibaba.
Its Comin Right for us!
Joined: Feb 2005
Posts: 12,203
Likes: 2,657
From: GA
Lead Driver
Joined: Jun 2013
Posts: 5,648
Likes: 893
From: north of Minneapolis, MN
I don't think he's pulling the cab. But if I had the trans out, rested assured I'd be installing new up pipes.
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