EVO All Evo Model Discussion

Warping derby covers

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Old May 5, 2015 | 04:33 PM
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Default Warping derby covers

Anyone find a 3 hole cover that doesn't warp? This one looks like it would hold up good.
http://www.ebay.com/itm/DERBY-COVER-...6ef732&vxp=mtr
 
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Old May 5, 2015 | 05:28 PM
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I've warped rocker boxes but I've never warped a Derby cover!!!
Your primary shouldn't be getting hot enough to warp it!!!
 
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Old May 5, 2015 | 05:43 PM
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Originally Posted by texashillcountry
I've warped rocker boxes but I've never warped a Derby cover!!!
Your primary shouldn't be getting hot enough to warp it!!!
I think that's why they went to 5 hole! The one that was on there was warped when I got it, and I bought a new one and it's warped now too. If I lay it on a flat surface, it touches the surface at 3 points, and gaps in between. I've ordered some cork gaskets, they claim these will help, instead of the paper crap Harley sells. EDIT: It does take time, but they warp.
 
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Old May 5, 2015 | 06:01 PM
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Originally Posted by bluharley
I think that's why they went to 5 hole! The one that was on there was warped when I got it, and I bought a new one and it's warped now too. If I lay it on a flat surface, it touches the surface at 3 points, and gaps in between. I've ordered some cork gaskets, they claim these will help, instead of the paper crap Harley sells. EDIT: It does take time, but they warp.
How long?
 
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Old May 5, 2015 | 06:05 PM
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Sounds like overtorqueing and or improperly fastening the bolts.
 
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Old May 5, 2015 | 06:06 PM
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I've had aftermarket covers warp, but not OEM.
 
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Old May 5, 2015 | 06:30 PM
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Yea, maybe too tight. This one I bought new out of the Harley shop has been warped for years. My primary leaks from there. It's gotten bad. Leaves a puddle after riding.
 
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Old May 5, 2015 | 06:37 PM
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Originally Posted by bluharley
Yea, maybe too tight.
With the exception of the old shovel ones that were sheetmetal, never had one warp or leak.
 
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Old May 5, 2015 | 06:40 PM
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Just for the hell of it, check the length of those bolts, make sure they are not a bit too long.


These don't leak.
 
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Old May 5, 2015 | 06:43 PM
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Originally Posted by glidein wide
Just for the hell of it, check the length of those bolts, make sure they are not a bit too long.


These don't leak.
Not the primary cover, the clutch cover. I could not figure how long bolts could make the derby cover leak!
 
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