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361 exhaust manifolds (gaskets, or no gaskets)
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   Forward Look Technical Discussions -> Engine, Exhaust, Fuel and IgnitionMessage format
 
rapom
Posted 2022-01-10 5:06 PM (#618306)
Subject: 361 exhaust manifolds (gaskets, or no gaskets)


Member

Posts: 18

It seems that from the factory there are no exhaust manifold gaskets used. My exhaust manifolds’ port surfaces, are in poor shape from being run by the PO for a period of time with some broken studs. This resulted in a rough, pitted port surface. Would exhaust gaskets work in this instance. I will be running a straight edge also to check for flatness.
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springsweptwing
Posted 2022-01-11 8:45 AM (#618319 - in reply to #618306)
Subject: RE: 361 exhaust manifolds (gaskets, or no gaskets)



Elite Veteran

Posts: 1141
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Location: Blackpool, United Kingdom.		Hi John,

Unless you are getting both surfaces skimmed flat, use the gaskets, they may look flat but will be slightly warped, just put this one on a flatbed sander to show,

Paul.



(IMG_20220111_134745089_copy_640x480~2.jpg)



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rapom
Posted 2022-01-11 10:25 AM (#618323 - in reply to #618306)
Subject: Re: 361 exhaust manifolds (gaskets, or no gaskets)


Member

Posts: 18

Thanks for the tip. One more thing, factory service manual says to torque 30ft.lbs. Would I be assuming correctly that I should torque a little more since I will be crushing gaskets?
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wayfarer
Posted 2022-01-15 1:04 PM (#618454 - in reply to #618306)
Subject: Re: 361 exhaust manifolds (gaskets, or no gaskets)



Elite Veteran

Posts: 888
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Location: Peoples Republic of Oregon		The amount of applied torque is generally determined by the bolt diameter, in your case, 3/8" diameter. 30lbs is a good number with the gasket.
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