changing derby cover
Outstanding HDF Member
Joined: Sep 2010
Posts: 2,357
Likes: 8
From: Pa
Stock cover uses a rubber o ring, thats good for a bunch of times if you remove your derby cover. THe paper style for the aftermarket gaskets should be changed each time, like others said for a piece of mind. Cheap insurance. But i know others will say you dont have to change it. Just a good idea.
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Road Captain
Joined: Jan 2012
Posts: 710
Likes: 2
From: San Bruno
well i havent removed the cover yet but im doing my 5k service this weekend and got a black derby cover that i want to put on. so if the o-ring will be fine for a one time (planned) removal i can live with that.
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
Big tip....if you have t-27 screws on that cover don't try to remove them with a t25 bit.
Get the t27 bit to avoid a stripped head which will then keep you busy for hours instead of minutes. Been there.
Get the t27 bit to avoid a stripped head which will then keep you busy for hours instead of minutes. Been there.
Ultimate HDF Member
Joined: May 2008
Posts: 6,642
Likes: 48
From: Ogden, UT
If you have the paper gasket you can re-use it many times, I still have my original one after 50k and it still seals just fine.
As far as I know they do not use the o-ring anymore, when I replaced my primary the new one did not even have the groove for it like my original one did.
As far as I know they do not use the o-ring anymore, when I replaced my primary the new one did not even have the groove for it like my original one did.
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Joined: Aug 2007
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From: Northern VA
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Cruiser
Joined: May 2012
Posts: 117
Likes: 0
From: nevada
Same here, stripped out two of the screws and spent the rest of the afternoon using drills and easy-outs to get her out. Went back in with some stainless allen heads so hopefully won't happen again
