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Sl33py
Posted on Tuesday, August 26, 2014 - 03:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

18k on bike, original clutch plates, one new clutch actuator (HD rev C fix iirc - not weeping).

Noticed it recently that was getting some slipping. Thought i may have had my hand on clutch and inadvertently gripped it causing slip. So tested the other night on long straight with hand clearly not on lever. It's spinning up (RPMs) without accelerating. Confirmed it's definitely slipping... bummer.

Any adjustment options i'm missing?

I looked at an old/archived thread:
http://badweatherbikers.com/buell/messages/290431/ 690584.html?1346686795
(still drives me crazy you can't unarchive)

Barnett kit 303-30-20125 - found some online and at American Sport Bike. $150-220 respectively.

I've found some videos on replacing the actuator (dreaded clutch weep), but not actually the clutch plates. I'm looking through the manual as well, but have always found the videos a huge help. Anyone know of a video on this?

Besides the kit, anything else i should get? I have a good torque wrench. I can grab the seal as well (just so i know it won't tear and i won't need it...).

What am i missing to do the swap?

I'm not worried about losing the oil, but may try the "lean" trick Jdugger suggests. I've got a bit of miles on my current oil, so either way is fine.

Springs - use barnett or re-use the stock springs?

Won't kill me but should i do the EBR actuator at the same time? It's an extra $100 i wouldn't mind avoiding, but main concern is some folks who claimed a lot of similar slipping (upper gears in powerband) after actuator swap. Thinking less changed parts may make it easier to diagnose if a problem? Then if 100% i can swap actuator another time? Also have a brembo MC i would like to swap one day w/ clipons. (again - thinking one change at a time)

Thanks for the help and suggestions!

Rob
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Skntpig
Posted on Tuesday, August 26, 2014 - 07:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

We used to do the lean trick on Hondas all the time. Never tried it with an 1125
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Oldog
Posted on Tuesday, August 26, 2014 - 09:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

a. Do you have a FSM?
b. is the actuator building pressure for some reason? ( blocked return port in MC )
c. plates ok
d. springs ok
e. has the spherical nut shifted on the take pin?
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Sl33py
Posted on Tuesday, August 26, 2014 - 11:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thanks oldog.

Yes have manuals. reviewed and printed the section on clutch pack replacement (6.5).

Shifts fine, runs fine. Barely slipping and tough to make it slip to confirm. 2nd gear small power wheelie noticed it... 4-5 gear roll on confirmed it with a high(er) speed run. hits power band around 6-8k and then slips consistently. Slow down and ride more reasonably - no problems.

springs - not touched, unsure how to confirm except pull and measure. don't know how to measure the "x"lbs @ 1.03in.

can check the spherical nut - but how do i tell if it's in right spot or backed out? torque measurement?

thx!!
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99buellx1
Posted on Wednesday, August 27, 2014 - 09:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Info on spherical nut setting is in the manual, it's not a torque measurement.
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Mackja
Posted on Wednesday, August 27, 2014 - 09:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have recently experienced clutch slippage at Road Atlanta two weeks ago, had to end the day early unfortunately. I had the slave cylinder replaced couple of years ago, at the same time in installed the Accossato master cylinder. Ordered and installed the Barnett kit, went to Barber Motorsports Park this past weekend and it performed perfectly. Clutch pull is a little heavier but not a real issue. I imagine with the stock master cylinder it might be a bit of a bear.
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Nuts4mc
Posted on Wednesday, August 27, 2014 - 09:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

a)some of us run the barnett kit with stock springs...works good with stock M/C
b) don't mix OEM parts (metal plates) with the barnett parts...if my puny memory is still working...they're a different thickness...the clutch pack will be a different "stack up" dimension.
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Sl33py
Posted on Wednesday, August 27, 2014 - 01:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

99buellx1 - thanks man i'll re-read and look for the spherical nut settings. That sounds like the first thing to check (most accessible).

Mackja - good to know. Did you use the OEM/Stock springs w/ barnett kit, or the springs from barnett as well?

Nuts - thx for the info (here and in linked archived thread). I was looking at the OEM friction plates to replace or the barnett kit, but definitely won't mix them.

dumb questions time for those of you who have done a clutch pack replacement:

drain clutch MC needed?

Drain oil vs. lean, i'm going to try the lean, but if oil is looking bad i'll just drain/replace. (i have a case of 20-50)

The process in the manual is pretty involved and looks like you have to pull the vacuum assist diaphram? Just wondering if i can avoid this (looking at the clutch release pin, i'm guessing not), and if there is a shortcut to just replacing the clutch pack?

Any of the specialty locking tools needed? Again i'm guessing not, since i'm not replacing the basket, but would like to confirm. In Nuts "tips" section:

quote:

Tips:
1)soak your fibre plates at least overnight in the same oil as in your bike...it'll prevent the new plates from sticking.
2)watch the order in which the plates are "stacked" which goes first ( steel or fibre) which goes last?
3) the bolts or screws that hold the outer cover to the clutch assembly are pre-loaded by the springs - usually long enough so that when you unscrew the fastener the spring will be in a relaxed state - be careful they could have a small amount of pre-load and when you get close to it being free - it may go flying
4) a rag stuffed between the crank gear and the clutch can help "stop" the clutch from turning when you are removing the outer cover fasteners/springs
5) Tricky part - may need a special tool depending upon your experience - re- installing the fasteners and the outer clutch cover with the springs - too often the clutch springs can give you an artificial "tighteness/torque" - you may want to rent/borrow a torque wrench to make sure the bolts are tighten to the correct level....usually the fasteners are steel and the threaded "bosses" in the clutch are aluminum - be careful you don't over tighten...they'll strip
6)when tightening the fasteners do it in a "star" pattern - like the lug nuts on a car's wheel
7) a big aluminum foil roasting pan under the engine makes a good "catch can" for oil (you remembered to soak the plates?) and it keeps parts from rolling away
8) I use anti-seize for fasteners ( like you get at the auto parts store in the catsup pacs for spark plug threads) on my side cover gaskets - it allows for easy removal the next time and usually keeps them from sticking or tearing.



#4? - just to stop rotation while removing the springs from the pressure plate?

More dumb questions to follow i'm sure, but that's it for now...

Thanks everyone!

rob
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Oldog
Posted on Wednesday, August 27, 2014 - 02:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I would not put a rag in the engine put the bike in gear of make a locking tool,
rags in motors = bad things
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Sl33py
Posted on Tuesday, September 02, 2014 - 02:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Oldog.

How about draining the clutch MC - need to do this to get to the clutch pack?

Do you have to pull the vacuum assist diaphram? Can I avoid this, or is there a shortcut to just replacing the clutch pack?

Thx!
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Mackja
Posted on Tuesday, September 02, 2014 - 07:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I used the Barnett springs, clutch works great. The clutch comes apart real easy, don't even have to drain the oil if you have it on the side stand. Clutch diaphragm can stay in place. Once the spherical nut is off the cover comes right off. Just put the plates in the same way they came out. Start and finish with steel plates. After doing it once I could do it in the pits in about 30 minutes.
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Sl33py
Posted on Wednesday, September 03, 2014 - 10:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

thank you Mackja! exactly what i was hoping to hear.

ill get parts ordered and dig into it.
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Pwillikers
Posted on Wednesday, September 03, 2014 - 01:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I had (still have after thousands of miles) issues with the Barnett kit dragging which makes finding neutral impossible and driving in traffic... interesting. Others on the board have had the same issue. I also found the Barnett springs to be very heavy. I reinstalled the stock springs which alleviated the heaviness.

I tried all manner of things to solve the dragging to no avail. I eventually gave up and decided to replace the Barnett kit with OEM plates. I started abusing the shit outta the clutch in anticipation of replacement. Low and behold, as the abuse piled up, the dragging lessened to the point that is now tolerable, not perfect but tolerable, so I've not replaced the Barnett plates with OEM.

I suspect the stack height of the Barnett plates was excessive and the abuse has brought them into tolerance.
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