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Sportster Motorcycle General Discussion and Problems For discussing problems about your Sportster motorcycle that don't fit anywhere else.

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  #1  
Old 4 Weeks Ago
1250 1250 is offline
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Sportster/Buell Model: sporster
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1250 is an unknown quantity at this point
Default derby cover leak

Is It possible to bend the bottom of the primary cover? I went down on the left side destroyed the derby cover. I can not get the new one to stop leaking. I cant tell if the primary cover is damaged an this is the reason it keeps leaking? The primary definitely hit the road hard. thanks
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  #2  
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Default

I don't see how you could bend the cover, crack it maybe, but not bend.
Check for a possible hair line crack near the derby cover bolt holes. Might show itself by tightening a bolt in without the cover.
... worth a try anyway.

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  #3  
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Default

Put your new derby cover on a piece of glass to make sure it's flat. If it is, then double check the derby gasket for cuts and abnormalities. If it's not one of these, you may have slightly folded in the bottom of the opening, where you hit, and you'll have to replace the primary cover. Bending it back will just crack or fracture the aluminum case.
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Did you replace the quad ring.
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  #5  
Old 4 Weeks Ago
1250 1250 is offline
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Sportster/Buell Model: sporster
Sportster/Buell Year: 2001
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1250 is an unknown quantity at this point
Default

thanks for the responses
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  #6  
Old 4 Weeks Ago
1250 1250 is offline
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Sportster/Buell Model: sporster
Sportster/Buell Year: 2001
Sportster/Buell Model #2: sportster 1250 c
Sportster/Buell Year #2: 2001
Reputation: 10
1250 is an unknown quantity at this point
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I don't know what the quad ring is?
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Default

See arrow, some call it a derby cover gasket, but I believe the proper name for it is quad ring.

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