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Old 08-05-08, 12:15 AM   #1
pirate
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freehub troubles

Hey folks. I'm starting to think that the freehub body on my wheel is beginning to give up the ghost. Seemingly at random, I'll hear a -CLUNK- coming from the rear of the bike and it feels like the freehub fails to engage for a split second. I'm guessing one of the pawls is worn out or something? I can't really think of anything else it could be.

This has happened maybe 5 or 6 times thus far, but it happened twice on the 60 mile ride I did today, so I'm starting to get nervous. It hasn't caused me any trouble, but I would hate to be stranded when I'm 30 miles from home.

The hub is an 8 speed Shimano 600, the model just before 600 became Ultegra I believe (it has the 3 green and blue blocks on the label). Can I just get any old Shimano 8 or 9 speed freehub body and slap it on there or is there going to be compatibility issues?
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Old 08-05-08, 12:35 AM   #2
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You might just need to clean and regrease the pawls and bearings. Disassemble the rear hub and freehub body and check it out. Don't use a thick grease on the pawls. Try white lithium grease. I have brought back a lot of freehub bodies and freewheels by rebuilding in this way.
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Old 08-05-08, 01:04 AM   #3
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Cool. 2 questions: Do I need any special tools to take the freehub apart and will the green Park grease work ok?
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Old 08-05-08, 02:16 AM   #4
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You're not going to take the freehub apart. Take it off the hub and then lube it like crazy to flush out the contaminants then reinstall.

Alternatively you can get a new freehub if that fails.
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Old 08-05-08, 02:35 AM   #5
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If I don't take it apart how do I get the grease in there, should I use Phil oil instead?

edit: I just answered my own question on the parktool site. should have done that before making this thread.

Last edited by pirate; 08-05-08 at 02:45 AM.
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