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blowing seals...

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Old Dec 18, 2008 | 11:37 PM
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Default blowing seals...

the exhaust manifold gaskets keep failing.. both heads and manifolds have been re-surfaced any suggestions for gaskets and locking bolts? i've seen the ones with the allen head in the middle of the bolt. they look easier to put in then the ones with the locking clips. what size do i need?
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Old Dec 19, 2008 | 12:22 AM
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Is this on a set of stock heads with stock manifolds.Are you useing stock gaskets also.I believe the name of the company Is named Percy,they sell soft copper gaskets.
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Old Dec 19, 2008 | 12:33 AM
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yes, stock, heads manifolds & gasskets
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Old Dec 19, 2008 | 12:36 AM
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LT motor? I use the stock exhaust gaskets the metal ones and a little copper seal. Mine are close to 2 years old .
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Old Dec 19, 2008 | 12:49 AM
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copper seal? < never mind... google is my friend
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Old Dec 19, 2008 | 01:14 AM
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Also if the car is turboed check the backpressure. Could be leading to failures reguardless of which gasket.
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Old Dec 19, 2008 | 01:39 AM
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A penguin drops his car off at a mechanic in Arizona and goes to have an ice cream to cool off. He comes back an hour later and the mechanic says "Well buddy, it looks like you blew a seal....."











Penguin says "No man, I just had some ice cream......."

/hijack
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Old Dec 19, 2008 | 02:13 AM
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Old Dec 19, 2008 | 07:02 AM
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I used the Stage 8 locking bolts on my LT4, they always worked great. I was always worried about the center allen locking bolt seizing up in the other brand bolts.
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Old Dec 19, 2008 | 03:47 PM
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i checked today. all of the manifold bolts on the passanger side were almost falling out. i'm not looking forward to that gasket R&R. last time i did the driver side it was somewhat easy, i still running the A/C not much room on the passenger side
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Old Dec 19, 2008 | 04:52 PM
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Originally Posted by hawk584
i checked today. all of the manifold bolts on the passanger side were almost falling out. i'm not looking forward to that gasket R&R. last time i did the driver side it was somewhat easy, i still running the A/C not much room on the passenger side
Are you using standard bolts or the heat treated ones from the facory?
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Old Dec 19, 2008 | 05:46 PM
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honestly i do not know
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