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Reuse pulley bolts, yay or nay?

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Old 03-25-2014, 05:42 PM
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Default Reuse pulley bolts, yay or nay?

I wanna say nay, but interested in other's opinion on this.
 
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Old 03-25-2014, 05:51 PM
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Originally Posted by HarDlife
I wanna say nay, but interested in other's opinion on this.
Take it from someone left on the road for hours do not re-uae pulley bolts. Make sure you clean the wheel housing threads and use red loctite.

Pinetop
 
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Old 03-25-2014, 05:57 PM
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Originally Posted by HarDlife
I wanna say nay, but interested in other's opinion on this.

Are you talking about the pulley on the rear wheel?
If so I reused mine but I had to use an impact to get them all the way in.
 
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Old 03-25-2014, 06:15 PM
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Depends on what bolts you have. If you have "normal" bolts they can be reused indefinitely with no problems. At some point Harley started using "Torque to yield" bolts and they can only be used once.

http://en.wikipedia.org/wiki/Torque-to-yield_fastener
 
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Old 03-25-2014, 06:31 PM
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Originally Posted by texashillcountry
Are you talking about the pulley on the rear wheel?
If so I reused mine but I had to use an impact to get them all the way in.
Yep, rear pulley. I have read and heard horror stories about the bolt heads shearing off whilst in flight when reusing the old ones. I think most were twinkies though.
I just looked in my SM, and it just says to clean 'em up, 2 drops of Red, and throw 'em back in service. Works for me.
 
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Old 03-25-2014, 06:54 PM
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Yep, a factory Twinkie issue.
 
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Old 03-25-2014, 06:57 PM
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I sheared mine on an old panhead with no front brakes , got real hot feet.
 
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Old 03-25-2014, 07:32 PM
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The service manuals (including Twin Cam) that I have do not say replace these bolts, but I use new bolts any time I install a rear sprocket.

Some info about torquing and degreeing fasteners:

A torque to yield bolt would be torqued to a specified value, and then turned a certain amount of degrees, and the manual would specifically call out using new bolts.

Not all bolts that are torqued/degreed are torque to yield, there are many bolts that are torqued in this manner, and are reusable. We use these fasteners in the jet engine world for many applications.

But even though the factory manuals don`t call for replacement, practical experience tells us too many stories of these bolts failing when re used...
 
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Old 03-25-2014, 07:40 PM
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Just replaced mine today after a tire change. Less than 6 bucks from Harley and the new ones were grade 8.
 
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Old 03-25-2014, 07:56 PM
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Tq to yield in an aluminum wheel is more likely for the stretch of the component, not the bolt.. Cant say one way or another, but I have a hard time rationalizing a problem with reusing a pulley bolt when properly torqued with lock-tite.. If it were an issue, a publication from the guys who designed it (service manual or message) should be easy to find.. Interesting discussion though..
 


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