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clutch replacement
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Thedodge
Brick Rider


Joined: 28 Apr 2011
Posts: 33
Location: Old Isleworth, middx, West london, England.

PostPosted: Tue Jun 14, 2011 4:08 pm    Post subject: clutch replacement Reply with quote

Clutch is slipping under heavy load, due to my oil leak. Engine oil, not gearbox. I don't have a problem doing this work, i am trying to find out if there is a way of removing the back end of the bike without disconnecting tha abs modulator, rather, unbolting and "tying"it up out of the way? Any first hand information from those who have done this would be much appreciated. Smile
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whyoldbill
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Joined: 12 Jun 2006
Posts: 440
Location: in the boonies, northwest of Columbus, Ohio

PostPosted: Tue Jun 14, 2011 4:56 pm    Post subject: Re: clutch replacement Reply with quote

Thedodge wrote:
Clutch is slipping under heavy load, due to my oil leak. Engine oil, not gearbox. I don't have a problem doing this work, i am trying to find out if there is a way of removing the back end of the bike without disconnecting tha abs modulator, rather, unbolting and "tying"it up out of the way? Any first hand information from those who have done this would be much appreciated. Smile


From my experience, and I tried everything I could think of to avoid pulling that abs modulator, I can tell you that you will never get that plate out that it sits on if you don't remove the modulator.
It's really not as bad as it might seem. Upon reassembly, bleed the air from the modulator and then the calipers.

Bill
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2xcelr8
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Joined: 29 Sep 2009
Posts: 71
Location: SE Wisconsin

PostPosted: Tue Jun 14, 2011 10:12 pm    Post subject: Pull It. Reply with quote

+1 I agree 100%. Been there, tried that. You can't move it far enough with the hard lines connected.
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'96 K1100RS, '94 K1100LT, '84 Honda VF700F Interceptor (4 sale)
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Scott_Anderson
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Joined: 05 Sep 2006
Posts: 3122
Location: Central Iowa, USA

PostPosted: Tue Jun 14, 2011 10:50 pm    Post subject: Reply with quote

Dont' waste your time trying to avoid removing it. At the very least remove/disconnect the brake(hard) lines, you can leave the electrical connected and tie the unit up out of the way and be ok. I did this with my '97 when I did my clutch spline lube, only cause I hadn't figured out how to remove the cover over the electrical connections. Rolling Eyes

I removed the entire assembly when I did the clutch on the '95 and believe me it was a whole lot easier working in there without that abs unit hanging in the way.
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Rafal
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Joined: 05 Jan 2009
Posts: 257
Location: Wroclaw, Poland

PostPosted: Wed Jun 15, 2011 3:55 am    Post subject: Reply with quote

Hello!

When changing the output seal one must remember, that the new seal have to be installed dry and it must face 0,5 mm above engine block surface.
And remember to mark clutch housing assembly parts in order to put them back the same way the were assembled in factory (balancing issue).

Best regards,
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micky77
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Joined: 05 Jun 2007
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Location: Fort Collins, Co

PostPosted: Wed Jun 15, 2011 6:59 pm    Post subject: Reply with quote

Any tricks to installing a new seal and keeping the face at 0.5 mm above the block surface?
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Scott_Anderson
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Joined: 05 Sep 2006
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Location: Central Iowa, USA

PostPosted: Wed Jun 15, 2011 9:33 pm    Post subject: Reply with quote

Very slow and carefully.
I personally fabricated a setting tool out of a black iron pipe coupling and a couple of worm band clamps. It wasn't perfect but it did work.
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1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)
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Rafal
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Joined: 05 Jan 2009
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PostPosted: Thu Jun 16, 2011 2:01 am    Post subject: Reply with quote

micky77 wrote:
Any tricks to installing a new seal and keeping the face at 0.5 mm above the block surface?


There You go:
http://k-technik.pytalhost.com/index.php?option=com_content&task=section&id=19&Itemid=93 3rd drawing from the top.
I have had the tool made to work with big size screw instead of handle )I can look for drawings in the evening). With a little help of 2kg hammer work like a charm Cool!

Best regards
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old guy old bike
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Joined: 18 Jul 2007
Posts: 373
Location: Lisbon, OH

PostPosted: Thu Jun 16, 2011 7:47 am    Post subject: Reply with quote

I have a buddy that works at a GM dealer. They had a seal tool that worked perfect. He didn't know what it actually fit because the mechanics just had a big box of seal installation tools and grab the one that looks right to them. Not sure that it is an effective process at the hourly rates charged.

Anyway, I just gave him my old seal and he matched it up.
Jeff
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Flying Duck
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Joined: 27 Jan 2005
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Location: Bumf***, WA

PostPosted: Thu Jun 16, 2011 8:37 am    Post subject: Reply with quote

If it were the rear main seal leaking then it wouldn't oil the clutch. The clutch nut O-ring on the other hand...
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Thedodge
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Joined: 28 Apr 2011
Posts: 33
Location: Old Isleworth, middx, West london, England.

PostPosted: Thu Jun 16, 2011 2:38 pm    Post subject: Reply with quote

Flying Duck wrote:
If it were the rear main seal leaking then it wouldn't oil the clutch. The clutch nut O-ring on the other hand...

It does seem to be that in most cases it is indeed the "O" ring that fails, and not the main seal. If the main seal is ok then i will save myself the work. I can machine a setting tool if needed.
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jr'sbmw
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Joined: 04 Nov 2008
Posts: 54
Location: Fl

PostPosted: Fri Jun 17, 2011 6:56 am    Post subject: Reply with quote

I pull the abs unit up on my LT and wire it to a small piece of wood across the frame. Then remove the bolts holding the tray. I have never had trouble removing the tray and have done this on 3 occasions without problems.
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micky77
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Joined: 05 Jun 2007
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Location: Fort Collins, Co

PostPosted: Fri Jun 17, 2011 12:12 pm    Post subject: Reply with quote

So back to the rear main seal - how does one know if it needs replaced or not. I.E. - oil dripping out, physical burn, or what - thanks.
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Flying Duck
PsyKotic Waterfowl


Joined: 27 Jan 2005
Posts: 10102
Location: Bumf***, WA

PostPosted: Fri Jun 17, 2011 1:32 pm    Post subject: Reply with quote

If your weep hole is weeping then you need to take the transmission off to determine where the oil is leaking. If it's leaking inside the clutch basket then it's the O-ring. If it's leaking in front of the clutch basket then it's the seal.

If it's been leaking for a while and has contaminated your clutch plate then it's the O-ring.
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Number 6
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Joined: 05 Feb 2011
Posts: 481
Location: Paris area, France

PostPosted: Sun Jun 19, 2011 4:15 pm    Post subject: Reply with quote

jr'sbmw wrote:
I pull the abs unit up on my LT and wire it to a small piece of wood across the frame. Then remove the bolts holding the tray. I have never had trouble removing the tray and have done this on 3 occasions without problems.

+1, no need to remove the ABS2 unit.
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kstones
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Joined: 11 Mar 2006
Posts: 38
Location: N Yorks, England.

PostPosted: Mon Jun 20, 2011 10:11 am    Post subject: clutch repair Reply with quote

the ABS unit is a bugger but has to be moved to get out many pieces including the gearbox itself. when i did my clutch i could not see how to remove the ABS completely (how to disconnect the cables) so i just disconnected the pipes and hung it up. A real PITA. The swage nut spanners (wrenches??) i found here in the UK would not fit over some of the nuts as the spanner walls were too thick; so i put had a look to see where they were being restricted and put them in the vice and filed them down with a nice big rough rasp so that they fitted fully over the nuts; you don't want the nuts getting rounded off so don't be afraid of filing down the spanners as much as you need; you'll still have plenty of wall thickness to do the job. If a spanner goes AWOL on you it's cheap to get another; not so if you round off a swaged end pipe nut!! The bleeding of the system is not a big job; bleed it down to the ABS unit first, then go to the calipers one at a time, filling and bleeding till air bubble free at each stage.
i was told later you can get the ABS unit off by disconnecting that bunch of cables going into it by removing a cover on the back of the unit and then getting at a plug unit underneath the cover. That would have made life a lot easier.
Getting the exhaust off needs a 13mm for all the exhaust nuts; but if they're tight and corroded then you might need a 12 mm "tapped" on to do the removal. A stud breakage is nasty but will need individual attention. A full set of new studs and nuts and gasket rings makes a nice job of the refit.
my main problem though was supporting the engine and the rest of the bike when the stand and the gearbox itself are removed. However you do it make it safe - i'm sure you DON'T need to be told that, but just in case....!!
The German way of putting all the bits together left me quite unimpressed by the lack of consideration for us poor buggers who need to get in there after normal use. With the ABS out of the way it is all a lot easier.
When putting the new O ring onto the end of the output shaft first wrap the threads with electrical tape as many times round as need to smooth the threads and preserve the O ring while getting it onto the shaft, then take off the tape.
The necessity of the correct seal position can be understood as you should be able to see the drain hole further in after the seal has been fitted; the consequences of covering it are obvious. Just tap it in a little at a time with a bit oversize socket or maybe something more refined and have good look before doing any more and do not go too far.
After you finish each stage of the rebuild take time to go round all the bolts and nuts etc you've fitted and check they're tight; i didn't do that with the centre stand and found it hanging off a bit after getting back on the road and had to fix it correctly then; oh dear.
As they say it's not a big job; just a hell of a lot of little ones, one after another.
Good luck
Tony.
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Jeeves
Big Brick Rider


Joined: 25 Apr 2011
Posts: 72
Location: Vancouver Island,B.C. Canada

PostPosted: Mon Jun 20, 2011 12:29 pm    Post subject: Reply with quote

Flying Duck wrote:
If it were the rear main seal leaking then it wouldn't oil the clutch. The clutch nut O-ring on the other hand...
Duck do you still go by the email i saw on your parts list??if so i sent you a question,,if not let me know how to buy from you Jeeves,,ps i'm on paypal
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Number 6
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Joined: 05 Feb 2011
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Location: Paris area, France

PostPosted: Mon Jun 20, 2011 4:10 pm    Post subject: Reply with quote

Rafal wrote:
it must face 0,5 mm above engine block surface.

Where did you get that info? Always seen and did myself at exact engine block surface.
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Scott_Anderson
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Joined: 05 Sep 2006
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Location: Central Iowa, USA

PostPosted: Mon Jun 20, 2011 7:12 pm    Post subject: Reply with quote

Number 6 wrote:
Rafal wrote:
it must face 0,5 mm above engine block surface.

Where did you get that info? Always seen and did myself at exact engine block surface.

BMW Tech bullitin #2798 issued 11/19/97.
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1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)
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Number 6
Flying Brick Rider


Joined: 05 Feb 2011
Posts: 481
Location: Paris area, France

PostPosted: Tue Jun 21, 2011 1:07 am    Post subject: Reply with quote

Scott_Anderson wrote:
Number 6 wrote:
Rafal wrote:
it must face 0,5 mm above engine block surface.

Where did you get that info? Always seen and did myself at exact engine block surface.

BMW Tech bullitin #2798 issued 11/19/97.

Is it accessible online?
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