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Brake rotor bolts

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Old Apr 24, 2009 | 01:11 PM
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Default Brake rotor bolts
I know the pulley bolts should be replaced if you remove them, but what about the brake rotor bolts? I'm going to paint my wheels and will be pulling off rotors and pulley.
 
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Old Apr 24, 2009 | 01:30 PM
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i do not replace them... just torque to spec with red loc tite... a hardened bolt is a hardend bolt, being removed will not affect it
 
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Old Apr 24, 2009 | 01:34 PM
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Thanks, Joe. Kinda what I was thinking, but the bit about pulley bolts needing to be replaced had me wondering.
 
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Old Apr 24, 2009 | 03:30 PM
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I've never heard a problem with the brake bolts but have heard plenty about the pulley.

I would replace the pulley bolts but not the rotor bolts.
 
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Old Apr 24, 2009 | 03:48 PM
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I've reused my rotor and pulley bolts twice and used red loctite and torqued them to spec and haven't had any problems. I have 19k on my bike. Reused them last time at 13k when i powder coated the wheels.
 
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Old Apr 24, 2009 | 03:48 PM
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Do they really cost enough to worry about not replacing them? I think I would replace them. I agree with JRK5892 99% of the time. However, bolts are not bolts, over time they all stretch and lose hardness. Replace the bolts.
this is word for word out of the manual.
2, See Figure 2-5, If necessary. install brake disc (9) andlor
hub plate (6) in their original positions. Verify that brake
disc is clean.Tighten lasteners to 16-241t-lbs (21.7-32.5
Nm).
a. On lelt side of wheel, install live new screws (5)
10

attach lell brake disc (9).
b. On right side
01wheel. install live new screws (5) to
attach hub plate (6).
3. Install spacers (2. 8) with largest chamlered end facing

away from wheel,
 
Last edited by tlb; Apr 24, 2009 at 03:54 PM.
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Old Apr 24, 2009 | 10:00 PM
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Yes, the manual specifies you have to install new ones each time. The reason is that when you torque 'em, they stretch. Same deal for the pulley bolts.

edit: Oops, I see my wisdom is redundant. Sorry.
 
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Old Apr 24, 2009 | 10:29 PM
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Pretty sure these are hardened bolts, NOT "stretch" bolts.

The manual does say to replace....a set of 10 with washers is about $75......no wonder they recommend replacement.
 
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Old Apr 24, 2009 | 10:31 PM
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Originally Posted by tlb
Do they really cost enough to worry about not replacing them? I think I would replace them. I agree with JRK5892 99% of the time.
I usually take a lot of Joe's advice and wisdom, too. But, you have a good point about the cost.
 
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Old Apr 24, 2009 | 11:38 PM
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I did not replace mine.
 
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