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derby cover gasket, replacement?

Old May 16, 2018 | 03:02 PM
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Default derby cover gasket, replacement?

I know this sounds silly and i have done my fluid changes many times but i have always had an aftermarket derby cover. so this year i have my new-ish bike with a stock derby cover and the dealer gave me the orange ring instead of a flat disk i have always used. now i can figure out how it physically goes in, my only question is do i install it dry or do i lube it up a bit like you would the rubber seal on an oil filter?
 
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Old May 16, 2018 | 03:15 PM
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You can insert it dry or wet but recommend dry so no oil on the outside of it drips out.

BTW, you can reuse that O-ring like 10+ times without having to change it. It's a good design and makes a great seal many times over.
 
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Old May 16, 2018 | 04:56 PM
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Jersey, I really do feel your pain on this. I absolutely hate that new gasket. I just went ahead and bought the flat ones. I haven't had any luck with that stupid, flimsy orange piece of crap. Damn thing frustrates me to no end.
 
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Old May 16, 2018 | 07:27 PM
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I take a rag and wipe out the grove in the cover and then put the gasket in dry. Once you get used to them they seal really well.
 
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Old May 16, 2018 | 08:29 PM
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Originally Posted by lp
You can insert it dry or wet but recommend dry so no oil on the outside of it drips out.

BTW, you can reuse that O-ring like 10+ times without having to change it. It's a good design and makes a great seal many times over.

to reuse it, do i just wipe it down to dry it off? still in cover and then just pop it back on?
 
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Old May 16, 2018 | 08:34 PM
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Originally Posted by Jersey Drew
to reuse it, do i just wipe it down to dry it off? still in cover and then just pop it back on?
Yep. No reason to take it out. Just wipe it down and inspect the edge for cuts etc. If it's still flexible and in good shape it should be good to go.
 
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Old May 16, 2018 | 08:47 PM
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Originally Posted by lp
You can insert it dry or wet but recommend dry so no oil on the outside of it drips out.

BTW, you can reuse that O-ring like 10+ times without having to change it. It's a good design and makes a great seal many times over.
Yes works great! +1
 
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Old May 16, 2018 | 11:36 PM
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I do about 6 to 7 services a year on my 25 bikes. I don't even wipe the orange o ring. Just reinstall the cover. Worked 100% on them all since 2006.

Recently I bought a Skull derby cover that did not have a grove for the o ring. It took the cardboard disc with a thin ring of rubber stuck on it. Luckily I had a couple that I got in 06 still in my oil cahnge tool kit.
 
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Old May 17, 2018 | 09:57 PM
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Originally Posted by lp
Yep. No reason to take it out. Just wipe it down and inspect the edge for cuts etc. If it's still flexible and in good shape it should be good to go.
Yea no reason. I have religiously changed the oil every 5000 and 43000 now and changed it the first oil change because the dealer recommend it. Its a good seal and its not like its a case seal or hard to get to, if it were to leak snapdedo change it then..
 

Last edited by Gwaxley; May 17, 2018 at 09:58 PM.
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