Uppipe leak at manifold. - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 13 (permalink) Old 01-09-2011, 11:17 AM Thread Starter
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Uppipe leak at manifold.

I can't get these connections to stop leaking. Both sides. Can the uppipe be re-formed at an exhaust shop or somewhere to get them to seal up? They are coated and otherwise in good shape.

I guess a thin coat of ultra copper would do it also.

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post #2 of 13 (permalink) Old 01-09-2011, 12:22 PM
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Re: Uppipe leak at manifold.

do you still have the original style uppipes in there? I finally got mine to stop leaking then when the pipes expanded from the heat they pushed the exhaust manifolds off the heads at the back cylinders.

I finally took mine out cut them up put bellows and flanges on them and they have been leak free since. I got the parts from verociousmotorsports to do it.

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post #3 of 13 (permalink) Old 01-09-2011, 12:30 PM
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Re: Uppipe leak at manifold.

duhh I read that wrong, mine always leaked at the collector not the manifolds. Like you said some copper coat may do it, hmm I gotta think about that

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post #4 of 13 (permalink) Old 01-09-2011, 12:49 PM
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Re: Uppipe leak at manifold.

Have you removed the up pipes lately. If so you could have some corrosion on the flange of the up pipe or on the seat of the mainfold that is preventing solid contact.

You should remove the up pipe and inspect the flange and manifold seat and polish them with some fine sand paper if necessary.

On edit, I saw where you mentioned coating. I wonder if the coating is causing a problem. I would sand it back to bare metal on the up pipe flange and manifold seat. Should fix the problem unless the up pipe flange is bent.

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post #5 of 13 (permalink) Old 01-09-2011, 01:01 PM Thread Starter
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Re: Uppipe leak at manifold.

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Originally Posted by neverkickn View Post
Have you removed the up pipes lately. If so you could have some corrosion on the flange of the up pipe or on the seat of the mainfold that is preventing solid contact.

You should remove the up pipe and inspect the flange and manifold seat and polish them with some fine sand paper if necessary.

On edit, I saw where you mentioned coating. I wonder if the coating is causing a problem. I would sand it back to bare metal on the up pipe flange and manifold seat. Should fix the problem unless the up pipe flange is bent.
Hmmm.....yep both the manifold and uppipes are coated. I guess that could be the problem.

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post #6 of 13 (permalink) Old 01-09-2011, 03:53 PM
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Re: Uppipe leak at manifold.

If your up-pipes got skinny where the donuts seal due to wear you can have them reformed at an exhaust shop. They can re-expand them to better fit the donut seals.. If that is what you meant in your OP.

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post #7 of 13 (permalink) Old 01-09-2011, 08:20 PM
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Re: Uppipe leak at manifold.

Quote:
Originally Posted by NorCalDiesel View Post
If your up-pipes got skinny where the donuts seal due to wear you can have them reformed at an exhaust shop. They can re-expand them to better fit the donut seals.. If that is what you meant in your OP.

no hes talking about the ball/socket joint at the manifold...


and yes a good exhaust shop can reshape the sockets

but i would try sanding them first and then apply a small layer of exhaust putty(sh#t works wonders, yellow tube from napa)

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post #8 of 13 (permalink) Old 01-09-2011, 10:13 PM
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Re: Uppipe leak at manifold.

Quote:
Originally Posted by BigRed97 View Post
no hes talking about the ball/socket joint at the manifold...


and yes a good exhaust shop can reshape the sockets

but i would try sanding them first and then apply a small layer of exhaust putty(sh#t works wonders, yellow tube from napa)
maybe but stick with the putty..... it stinks less

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post #9 of 13 (permalink) Old 01-10-2011, 03:41 AM
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Re: Uppipe leak at manifold.


CCLB with some stuff done .....


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post #10 of 13 (permalink) Old 01-11-2011, 12:32 AM
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Re: Uppipe leak at manifold.

Make sure you tighten the clamps at this end first. If you tighten the upper ones first it my not be letting the lower ones seat properly. Also coat it all well with some nickle anti-sieze so that it is lubricated and can move around to the point where it seats properly as you're tightening the bolts down. It my just be twisted slightly from the upper portions being tightened already.

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