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Derby Cover Gasket or "O" Ring ?

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Old Nov 15, 2015 | 01:05 PM
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Default Derby Cover Gasket or "O" Ring ?
My derby cover currently has a regular O-ring seal. Can I replace it with a gasket as shown or are they for another type of derby cover?

 
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Old Nov 15, 2015 | 02:58 PM
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That will fit your derby cover.
There are other types though.
The Dealer sells one that is a solid disk with 3 holes and one side says toward clutch.


Is that an AFM gasket?
 
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Old Nov 15, 2015 | 03:04 PM
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Its a James gasket. I sorta ordered it by mistake. With this gasket, the derby sticks out a little bit. No big deal if as long as its OK to use. Seems like a good gasket that can be re-used a few times.
 
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Old Nov 15, 2015 | 03:15 PM
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Originally Posted by 89FLHTC
Its a James gasket. I sorta ordered it by mistake. With this gasket, the derby sticks out a little bit. No big deal if as long as its OK to use. Seems like a good gasket that can be re-used a few times.
AFM isn't a brand it is a type of gasket.
AFM stands for aluminum foam matt.
Basically it is a piece of aluminum with foam on both sides.


AFM gaskets can be reused several times before they wear out.
 
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Old Nov 15, 2015 | 03:20 PM
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Oh OK. Thanks. Yes, it is molded rubber, beaded oil seals with metal inserts . Appreciate the info.
 
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Old Nov 15, 2015 | 04:59 PM
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Originally Posted by texashillcountry
AFM isn't a brand it is a type of gasket.
AFM stands for aluminum foam matt.
Basically it is a piece of aluminum with foam on both sides.


AFM gaskets can be reused several times before they wear out.
I love these gaskets. I think my cam case and trans gaskets are this material as I successfully reused both. So much nicer than scraping like old gaskets.

Wait I have a TC now...wrong forum...
 
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Old Nov 15, 2015 | 05:07 PM
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I replaced my "O" ring with the later HD gasket that is full sheet. It is much easier to install as the O ring type was a pain.
 
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Old Nov 17, 2015 | 02:33 PM
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My '90 has both the O ring and the disc gasket, it's apart as I write! The parts book only shows the O ring.
 
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Old Nov 18, 2015 | 07:53 AM
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Mine also has the O ring and the disc gasket as well. I have never replaced either in 5 years. Regular clutch maintenance and no leak.
 
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Old Nov 18, 2015 | 08:43 AM
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Suppose to use one or the other, but I guess both works too.
 
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