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Manifold replacement

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Old Oct 10, 2007 | 08:11 AM
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Question Manifold replacement

I have recieved a different answer from every mechanic i have talked to. I removed my driver side manifold and on replacement do i need a gasket? Does it need to be machined? One mechanic said i need to get a mechanics straight edge and then take it to a machine shop if it isnt trure.
 
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Old Oct 10, 2007 | 09:39 AM
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They now make a gasket for the exhaust manifolds but I haven't seen a motor with one. If you took it loose from the head then it might be a good idea to put a gasket on. It won't hurt by any means.
 
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Old Oct 10, 2007 | 09:43 AM
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well i just got it on a minute ago and it is leaking...i guess that answers my question
Im sure Ford is gonna be proud of these gaskets $$$
 
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Old Oct 10, 2007 | 11:16 AM
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everytime i remove a exhaust manifold, even with a new head or manifold, i install gaskets. they are like 20 bucks a side here.
 
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Old Oct 10, 2007 | 11:21 AM
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I had black Carbon around both manifolds. They replaced or put in gaskets when I had my Y-Pipe replaced. It was cracked.

Greg
 
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Old Oct 10, 2007 | 12:50 PM
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where did you get the gaskets at?
 
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Old Oct 10, 2007 | 12:53 PM
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Originally Posted by grinekb
where did you get the gaskets at?
BTH is a dealer tech so his come from the dealership. I don't know anyone else currently selling them unless it's an IH truck dealership.
 
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Old Oct 10, 2007 | 02:33 PM
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My work was done at the dealer as it was still under warrenty at that time. I had a good dealer that did not care about mods.

Greg
 
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Old Oct 10, 2007 | 03:21 PM
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The Ford part # for the exhaust gasket is 5C4Z-9448-A. Ford is proud of the gaskets to have a list price of $44.62 each!
 
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Old Oct 10, 2007 | 04:03 PM
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There is a TSB to replace install gaskets at the heads if the manifolds are still okay. Most of the ones we get here in MA are rotted and cannot be resued and they get manifolds and gaskets every time. you cannot match a steel to steel seal more than once so install gaskets and never sieze the bolts in the heads..
 
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Old Oct 10, 2007 | 04:07 PM
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and by never sieze, he means apply "never sieze" to the threads of the exhaust bolts. will keep them from galding (SP?)
 
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Old Oct 10, 2007 | 04:18 PM
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The dealer removed my exhaust manifold in order to tap it for the EGT probe. When they put it back on they said they had to use the gasket as stated above. I have the receipt for it at home. I want to say it was around $20 like Bowtie said. I will try to remember to look and post the part number when I get home.
 
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Old Oct 10, 2007 | 04:39 PM
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if I would unbolt manifolds, I would put a gasket in there for 125% sure...

I did not knew they made a manifold gasket!

I never really liked that idea of no gasket... there is always a small leak as I can see a little black sooth around some of the ports.
 
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