ADVrider

Go Back   ADVrider > Bikes > Orange Crush > Crazy-Awesome almost Dakar racers (950/990cc)
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-13-2010, 11:29 PM   #1
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
Eh? Loose Clutch Basket?

I have my bike apart replacing the water pump shaft, seal, bearings, impeller, etc... While checking things out it seems the clutch basket (with the clutch fully assembled) is loose! What am I looking at here? While riding it I haven't had any indication that there's a problem.

It looks like it is a steel banded clutch basket, so maybe that should get replaced anyway, along with the needle bearings.
Yardstick is offline   Reply With Quote
Old 09-14-2010, 07:59 PM   #2
mookymoo
Mookish Mook
 
Joined: Aug 2007
Location: Either UK or Australia ...
Oddometer: 4,387
What do you mean by "loose" ?
mookymoo is offline   Reply With Quote
Old 09-14-2010, 09:25 PM   #3
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
It's hard to explain, that's why I just said "loose". It's not like there is a lot of play in the gears. And it's not that it moves in/out on the shaft. It's as if the gear on the back that should be parallel with the face of the engine case can be moved out of parallel. So moving it so that it rotates up/down or left/right I see movement between the gear on the back of the basket and other gears in the case.
Yardstick is offline   Reply With Quote
Old 09-14-2010, 11:44 PM   #4
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
How about a video?



I took the clutch all apart and checked things out. Everything looks REALLY good. For 34,645 miles it's amazing! When I put everything back together again, the play is still there.
Yardstick is offline   Reply With Quote
Old 09-15-2010, 03:53 PM   #5
mookymoo
Mookish Mook
 
Joined: Aug 2007
Location: Either UK or Australia ...
Oddometer: 4,387
Quote:
Originally Posted by Yardstick
How about a video?



I took the clutch all apart and checked things out. Everything looks REALLY good. For 34,645 miles it's amazing! When I put everything back together again, the play is still there.
Aahh.

Ive seen that before on a 990.
Aurel's, in fact.
His clutch was playing up at the time. Really grabby - from standstill, it made anyone look like a learner rider.
I seem to remember his dealer replaced the whole basket (under warranty) - but I dont know the details. You can maybe try PM him - hes on the road (Botswana, last I saw... )
mookymoo is offline   Reply With Quote
Old 09-15-2010, 04:56 PM   #6
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
I'll try PMing him then. I wouldn't have known anything was wrong from riding the bike. It hasn't been doing anything strange. The only significant wear I did find in the clutch system was with the ramps on the booster system. That's pretty normal though as far as I can tell from searching. And that doesn't have much (or anything) to do with the basket being loose like that.
Yardstick is offline   Reply With Quote
Old 09-16-2010, 02:32 AM   #7
StevenD
Hmmmm, dirt!
 
StevenD's Avatar
 
Joined: Aug 2005
Location: Holland, Amserdammed
Oddometer: 1,111
completely normal to have some movement there. This looks like a bit much but i wont worry about it yet.

There's a long roller bearing in between, that could be worn or out of spec for mounting. I dont recall any thing written in the shop manual for clearances there.

Did you try with the springs in place? should be a lot less then.
__________________
999 LC8 Rat-Rally custom - 500 EXC - XR666R '85
StevenD is offline   Reply With Quote
Old 09-16-2010, 07:47 AM   #8
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
In that video the clutch is assembled and hasn't been disassembled yet, so the springs are all in place there. It doesn't look like there is much wear anywhere in there (shaft/bearing/basket). The bearing has the most of those. I was thinking of replacing the bearing and seeing if that helps.

I didn't take pictures of the bearing areas on the shaft or basket, but here's the bearing itself:



The marks from the plates on the basket are just deep enough to feel.



Same with the hub.

Yardstick screwed with this post 09-16-2010 at 07:53 AM
Yardstick is offline   Reply With Quote
Old 09-16-2010, 08:59 AM   #9
StevenD
Hmmmm, dirt!
 
StevenD's Avatar
 
Joined: Aug 2005
Location: Holland, Amserdammed
Oddometer: 1,111
kindof looks like the rollers got hot. You could be shocked what a bearing like that costs.. but dont know about this one and if it's a standard item from skf or so. It's just very difficult to tell from a video or picture that something is wrong or not.
A slight bit of axial play will cause quite a bit of tilt on this basket. and there will alway's be axial play. perhaps some a bit more then others. what i'd like to know is if the shaft and inner race on the outer clutch have heat or scoring marks on them. Is there any evidence of this getting (to) hot?
__________________
999 LC8 Rat-Rally custom - 500 EXC - XR666R '85
StevenD is offline   Reply With Quote
Old 09-16-2010, 09:20 AM   #10
HellsAlien
a has-been that never-was
 
HellsAlien's Avatar
 
Joined: Nov 2004
Location: Baja Sur winter. PDX summer (that's like 6 wks!)
Oddometer: 2,322
Yard,
Was the large clutch basket retaining nut loose/near loose when you unscrewed it? That has happened before.
__________________
"Hells AL is right."Zuber "Bad roads, good people. Good roads, bad people." Mama Espinoza
“Ride first, tart second. Sorry bro but that’s the way it has to be.” Cbrit, 2008
“You gas it where I brake!” trackday passenger, Thunderhill, 2005 "Especially since he's one of the fastest riders on the planet, on any surface!" Earwig, 2014
HellsAlien is offline   Reply With Quote
Old 09-16-2010, 09:42 AM   #11
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
The bearing isn't cheap, but none of what's in there is cheap.

The basket and shaft surface that the bearing rides on look pretty good to me. There is some slight discoloration in the finish, but not too bad as far as I can tell. There's no depth to the markings that I can find with a caliper.

Basket:



Shaft:



The nut wasn't loose. I also took everything apart, cleaned it all and put it all back together (used an impact to torque the nut since I don't have the KTM tool). The play was still there.
Yardstick is offline   Reply With Quote
Old 09-16-2010, 04:40 PM   #12
ChrisK7
Gnarly Adventurer
 
ChrisK7's Avatar
 
Joined: Mar 2004
Location: Stanfield, Oregon 97875
Oddometer: 243
Interesting, after doing the Riggins Id. rally and some seriously nasty single track riding I noticed my clutch is a bit "grabby" now once in a while. Was thinking I just over abused the plates but now I'm wondering if I have this problem.
I've got around 20K on mine I think.
__________________
'14 KTM Adventure 1190R 12 KTM 990 SMT ,09 KTM 530 EXC (plated), 09 Kawasaki Brute Force 750
ChrisK7 is offline   Reply With Quote
Old 09-17-2010, 01:22 AM   #13
StevenD
Hmmmm, dirt!
 
StevenD's Avatar
 
Joined: Aug 2005
Location: Holland, Amserdammed
Oddometer: 1,111
we are not even sure this is a problem and you suddenly feel like you may have ´this problem´ Are you good at poker to?

Sounds like your just due for an oil service.
__________________
999 LC8 Rat-Rally custom - 500 EXC - XR666R '85
StevenD is offline   Reply With Quote
Old 09-17-2010, 08:13 AM   #14
Yardstick OP
Hydrophobic
 
Yardstick's Avatar
 
Joined: Oct 2007
Location: Chandler, Arizona
Oddometer: 2,962
I kind of agree. It's not too hard to get in the motor that far to check to see if you have A problem though. I'd probably try an oil change and clean the clutch jet first if mine was grabby. With the play and wear I have, my clutch felt about the same as the one in my Super Enduro. That bike only has about 3,000 miles on it.

Yardstick screwed with this post 09-17-2010 at 08:24 AM
Yardstick is offline   Reply With Quote
Old 09-17-2010, 09:30 AM   #15
Central Cali Rider
Gnarly Adventurer
 
Central Cali Rider's Avatar
 
Joined: Aug 2006
Oddometer: 405
I ran into the same thing. My clutch makes a little noise , but once I pull in the clutch it goes away. When I was doing a 32k service , I replaced the waterpump , cam chains etc. I also replaced the bearing. Torqued it and same, no change wasted money. Did not have a grabby clutch though.
__________________
Central Kali Coast
2005 KTM 950 Adventure
1965 Meyers Manx Dune Buggy
2006 Suzuki SV1000S for wifey Sold !
1997 KLR650 For sale SOLD !!
Central Cali Rider is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 09:40 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014