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the derby cover trap

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  #1  
Old 10-10-2014 | 12:56 PM
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coop creek
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Default the derby cover trap

and why you should do your own oil changes, read the forums and own an impact driver.

I usually prefer to do my own oil changes because I like doing it, and most every time the bike visits the dealer for service it comes home with a new scratch or mark. But my new SGS included a "free 1000 mile service", that's worth $70.00 in oil and filter alone, plus it needed to get the clutch recall work done, so I let them do the work. I didn't say "don't clean it" this time (they usually don't listen anyway), so they "cleaned" it too.

So today I was cleaning up the messy clean up job and while I had the bike upright on a jack I figured I would remove the derby cover screws, make sure there was some antiseize on them and re-torque them.

Having read the forums, I knew how these screws can freeze up. So I used a 3/8" ratchet to get leverage, and gave the first screw a good sharp twist... and of course nothing moved. Stop right there.

So I retrieved my electric impact driver. I think I spent $200+ on a combo package with the driver and a cordless drill. I've used it maybe 4 times, hardly ever, but this tool is worth every penny when you need it. I put a T27 bit in it and it popped out the screw instantly. I re-snugged the screw and then popped out and re-snugged all the other screws. Then I removed them one at a time and put ant-seize on them (they were all dry), tightened them up and torqued them.

Honestly, I think they leave the screws dry on purpose.
 
  #2  
Old 10-10-2014 | 01:00 PM
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On my list of things to do, is to replace the derby Torx with Allen head screws.
 
  #3  
Old 10-10-2014 | 01:26 PM
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A friend brought me his wife's Dyna because the derby was leaking. The screws were really tight, and when I got it off I set it on the floor. He had actually tightened it to the point the cover was warped. I had a spare cover laying around and put it on properly. The leak stopped.
As a side note, I don't care for Torx screws either. None left on my bike.
 
  #4  
Old 10-10-2014 | 01:44 PM
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Originally Posted by TriGeezer
On my list of things to do, is to replace the derby Torx with Allen head screws.
Already did that on my bike, those torx suck and round out too easy.

Originally Posted by RHPAW
A friend brought me his wife's Dyna because the derby was leaking. The screws were really tight, and when I got it off I set it on the floor. He had actually tightened it to the point the cover was warped. I had a spare cover laying around and put it on properly. The leak stopped.
As a side note, I don't care for Torx screws either. None left on my bike.
That happened to my bike when I had it in for warranty work. I ended up having to buy another derby cover because my local dealer doesn't admit their mistakes.
 
  #5  
Old 10-10-2014 | 02:24 PM
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Originally Posted by bdtaylor1979
Already did that on my bike, those torx suck and round out too easy.



That happened to my bike when I had it in for warranty work. I ended up having to buy another derby cover because my local dealer doesn't admit their mistakes.
Needless to say, you need to find another dealer.
 
  #6  
Old 10-10-2014 | 05:08 PM
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I've never used anti-seize on derby cover screws and never had a problem. I even still have the original torx screws in my 09. The derby has been on/off probably a dozen times. Common mistakes are over tightening and using the wrong size bit.
 
  #7  
Old 10-10-2014 | 05:13 PM
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[QUOTE=bdtaylor1979;13306432]Already did that on my bike, those torx suck and round out too easy.


those are not really torx bolts, they are called butter bolts, because.....well I'm sure you've figured it out by now!!
 
  #8  
Old 10-10-2014 | 06:44 PM
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Originally Posted by hvacgaspiping
Needless to say, you need to find another dealer.
Tell me about it.

Originally Posted by Mr HOG
I've never used anti-seize on derby cover screws and never had a problem. I even still have the original torx screws in my 09. The derby has been on/off probably a dozen times. Common mistakes are over tightening and using the wrong size bit.
I used the proper bit and didn't over tighten them and they still rounded out. I even used a torque wrench.

[QUOTE=harleycharlie1992;13306981]
Originally Posted by bdtaylor1979
Already did that on my bike, those torx suck and round out too easy.


those are not really torx bolts, they are called butter bolts, because.....well I'm sure you've figured it out by now!!
Exactly!
 
  #9  
Old 10-10-2014 | 07:00 PM
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Before I switched to allen's I never put anything on those screws and never had a problem.
 
  #10  
Old 10-11-2014 | 06:52 AM
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I use blue loctite on mine, no problem so far.
 



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