Uppie leak?
Lead Driver
Joined: Jul 2017
Posts: 6,866
Likes: 2,338
From: WV
Or just reuse the original manifolds with gaskets. That’s what I did and so far so good.
Right or wrong I used anti seize on the bolts, especially where they passed through the manifold.
I did retorque the bolts after heat cycle.
I believe the bolts aren’t just run of the mill stuff and have a built in way that prevents them from backing out. But that may be completely wrong. I purchased new bolts for the job.
The way I look at it, for the price difference it’s probably worth a shot at reusing the factory manifold. At least if you want to go with the good manifolds anyhow. Seems like someone had issues in short order with a Dorman part. But if willing to use the cheap ones then maybe worth it to do it now.
-The hardest part of the job is fighting with the old rusted bolts and manifolds. So if it leaks fairly quickly then a redo shouldn’t be too awful
Right or wrong I used anti seize on the bolts, especially where they passed through the manifold.
I did retorque the bolts after heat cycle.
I believe the bolts aren’t just run of the mill stuff and have a built in way that prevents them from backing out. But that may be completely wrong. I purchased new bolts for the job.
The way I look at it, for the price difference it’s probably worth a shot at reusing the factory manifold. At least if you want to go with the good manifolds anyhow. Seems like someone had issues in short order with a Dorman part. But if willing to use the cheap ones then maybe worth it to do it now.
-The hardest part of the job is fighting with the old rusted bolts and manifolds. So if it leaks fairly quickly then a redo shouldn’t be too awful
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
Do you know if you're truck has always been an Oklahoma truck or did it come from further north? My E99 was a Kansas truck, but only barely, and the manifolds came off super easy. No soaking with penetrant for days before or any of that. I did spray them the night before I did the job and used an impact, but no hammering. Just bumped real easy and put they came . A couple I actually thought I broke because they came out so easy. I also recommend chasing the holes with a tap before going back together. Where I ran into trouble was the tapers the up pipes mate to. Mine were pitted and didn't want to seal up 100%. The re-torque is a good idea also. The spec is only like 45# it doesn't even feel like you've squashed the gasket yet, but I guess it works. Also yes the Motorcraft manifolds are a better quality part obviously but I also know not everyone can swing over 4 bills for a set, 6 by the time you get bolts and gaskets, especially as crazy as things seem to be right now. I'm all about options, there's always another way.
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More Turbo
Joined: May 2018
Posts: 729
Likes: 147
From: Butler, OK
@udsuth78 it started life, for 6 months, maybe a year in idaho, been an oklahoma truck ever since. Story there is that it had a tree dropped on it new, wrecked the cab top. So the cab got rebuilt, by my old bosses brother, who is/was an auto body shop owner. My boss bought it from him with only a few thousand miles on it, and it was his main truck for about 10 years. Then it got rotated woth others. Until he had issues with it, and parked it, around 2015. I bought it from him after it sat for 2 years, and i began the education on all things 7.3
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
@udsuth78 it started life, for 6 months, maybe a year in idaho, been an oklahoma truck ever since. Story there is that it had a tree dropped on it new, wrecked the cab top. So the cab got rebuilt, by my old bosses brother, who is/was an auto body shop owner. My boss bought it from him with only a few thousand miles on it, and it was his main truck for about 10 years. Then it got rotated woth others. Until he had issues with it, and parked it, around 2015. I bought it from him after it sat for 2 years, and i began the education on all things 7.3
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