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sealing intake manifold

 
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Old 24 Apr 2012, 10:55 pm
crazyptguy's Avatar
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Default sealing intake manifold

i seem to have a leak from where the upper and lower manifold meet i lit a cigar and the smoke gets sucked in certain spots. i have replaced the lower manifold and the upper is the original both have new gaskets has anyone ever used silicone sealant between them to seal the manifold?
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Old 24 Apr 2012, 11:14 pm
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Default Re: sealing intake manifold

Uhm, which PT?

I have to ask because you have 2 PT's in your signature. The later 2005 Turbo PT's had the plastic (composite) intake manifold upper/lower whereas the earlier 2005 and previous years had the aluminum manifold.

As for N/A's, they use their own version of a plastic intake manifold.

If it's a plastic one, the upper manifold has rubber o-rings that act like a gasket to seal the manifold to the other.

For the metal one, there's a long cardboard-type gasket between the manifold. Very cheap to replace; about 6 bucks from Chrysler dealership.

First things first, I'd check to make sure that the bolts are torqued down to spec.
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Old 25 Apr 2012, 03:33 am
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Default Re: sealing intake manifold

duh sorry its the n/a i replaced all the gaskets (orings) and its torqued correctly but i seem to have a little warp in the center of the top section (bottoms new) i wanted to run a bead of silicone sealent around the edge between them to seal them up well
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Old 25 Apr 2012, 08:00 am
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Default Re: sealing intake manifold

The sealer will "probably work", but the vacuum levels that are sometimes reached in our manifolds might eventually pull some of it into the engine. Don't do that until I check in the shop to see if I've still got a top half out there. You can have it for the price of shipping if you want it. I've got a busy day planned (retired ya know) but I'll get back to you later today.

Jerry
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Old 25 Apr 2012, 11:18 am
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Default Re: sealing intake manifold

retirement is nice isnt it? if i had known it was this much fun i would have done it first and waited to work till i was 70 LOL i will await your command sir! thank you very much
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Old 25 Apr 2012, 01:29 pm
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Default Re: sealing intake manifold

Quote:
Originally Posted by crazyptguy View Post
retirement is nice isnt it? if i had known it was this much fun i would have done it first and waited to work till i was 70 LOL i will await your command sir! thank you very much
You're 70!!! I thought I was the oldest here at 67.

I'll ship the upper out tomorrow when I ship out a couple other things to other YOUNGER people.

Jerry
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Old 07 May 2012, 01:18 pm
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Default Re: sealing intake manifold

recieved part today money order will go out in the am and thank you! its nice to have the matching set! and no im only a young pup at 37 but i am retired and there are days when i FEEL 70
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Last edited by crazyptguy; 07 May 2012 at 01:20 pm. Reason: added
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Old 07 May 2012, 06:30 pm
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Default Re: sealing intake manifold

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Originally Posted by crazyptguy View Post
recieved part today money order will go out in the am and thank you! its nice to have the matching set! and no im only a young pup at 37 but i am retired and there are days when i FEEL 70
Glad to help. I think the pair will solve your problem.

37!!! "Hey zooss" I can't even remember 37! Actually, most of the time, I can't find my butt with both hands, so that shouldn't be hard to understand.


Jerry
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Old 07 Mar 2013, 04:38 pm
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Default Re: sealing intake manifold

I changed the upper manifold on my n/a once and had a terrible vacuum leak. Took it to the dealer and the mechanic there used a thicker washer and it cured the problem. Good luck.
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