clutch basket


24 replies to this topic
  • crfloco

Posted 02 July 2012 - 10:53 AM

#21

Shawn_Mc, on 30 June 2012 - 08:27 PM, said:

Regarding the gears lining up, just look at the wear pattern on the primary drive gear on the crank. They probably only run 80% in contact if that.

Make sure the flat ground side of the washer is what is butting up to the clutch hub. You will probably be able to feel the drag of the washer just pushing it in with your fingers and turning it.

There can only be a couple issues there.
1. the washer is up side down, or the shaft is worn somehow where the washer butts, or the collar that the basket needle bearing isnt seating properly...

The big thrust washer basically sandwiches the basket. The clearance is set by the inner collar and the washer. If the washers clamping area is damaged or the basket is some how coming off the drive gear...something isn't correctly assembled or has been compromised some how.

Thanks , I was under the impression that the gears had to line up 100% so I was worried when they didn't . Im going to get a new washer , bearing , collar and hub since mine shows signs of wear anyways and go from there . If it still does the same you might see a 08 CRF450R in the obituaries


HrcRacing27, on 01 July 2012 - 12:20 PM, said:

I've torqued 500 clutch baskets down before and they did the same thing.  Now I just tighten them down with a T-handle and socket.  With the tabbed washer it's not going anywhere and I haven't had a problem since.

That's kinda what I was going to do but was not sure if maybe there was maybe a certain load on the main shaft bearing or something like that. If I torque it down to 48 lbs it will spin freely but at the OEM spec 59 lbs it binds. I have some wear on the clutch hub so Im going to replace it .

Thanks

Edited by crfloco, 02 July 2012 - 10:57 AM.


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  • mxneagle

Posted 03 July 2012 - 07:23 PM

#22

Yep, check the washer and make sure it facing the right direction  Had it happen on a CR250 once.

  • Shawn_Mc

Posted 05 July 2012 - 09:50 AM

#23

You want the hub torqued to at least 55ft. lbs. Normally I'll get to 55 and start checking the tab position of the nut. Should the hub come loose, well, its not good, even if the nut stays put on the shaft.

  • crfloco

Posted 12 July 2012 - 01:10 PM

#24

Ok guy's I have an update. Ordered a new clutch hub and installed it last night. Torqued it down to 59ft lbs and it spin's freely. I think the back of the old hub was worn just enough to cause the binding ?? Seem's to be okay now. Thanks for the help all !!

  • shanecarr

Posted 12 July 2012 - 04:56 PM

#25

Good, thx for update.




 
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