K11 Owners Group

strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

96 K1100LT 61K miles and been running fine. Yesterday the clutch slipped on hard acceleration. I have adjusted the clutch several months ago. I changed tranny oil last month and it took about a litre of gear oil. More than the book called for. I am getting oil out of the weep hole. Where should I start?

whyoldbill · Posted: Sat Nov 02, 2013 9:07 am Post subject:

This looks like the same symptoms

http://www.k11og.org/forum/viewtopic.php?t=8894&highlight=clutch+slipping
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mr_10brook · Joined: 04 Dec 2010 Posts: 15 Location: Central Indiana

Bought my 94 LT 3 years ago with that problem and got a good deal because of it. 67k miles

The problem ended up being the rubber o-ring leaking onto the clutch and fouling the clutch plate.

I learned how to replace the clutch and other parts by using this forum.

I changed the o-ring, rear main seal and clutch plate and all the rubber parts on the engine over that winter. Bike has been trouble free for 20k miles now.

It will probably cost you a couple thousand dollars to take it somewhere to fix unless you attempt it yourself.
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strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

This bike seems like it always wants attention. The attentions needed are rarely inexpensive either. My darn problem is that this bike is so fun to drive. I just noticed that I overfilled the tranny by an inch, It was down to 3 1/2 inches from the top.

Number 6 · Posted: Sat Nov 02, 2013 12:06 pm Post subject:

Tranny oil overfill won't harm the bike, you may just have overflow from the top.
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Scott_Anderson · Posted: Sat Nov 02, 2013 12:32 pm Post subject:

The oil that's leaking from the weep hole, does it have the "sulfur" odor that's normal with gear oil? or could it be motor oil?
It's not unheard of for the motor output shaft seal to leak, and drain out of the weep hole.
BUT it's not that common for the motor oil to end up on the clutch disk and cause slipping.

How high is your motor oil level in the sight glass. Mid-line of the glass is just below the bottom edge of the motor output shaft seal. If you regularly keep your level excessively high, you could potentially leak more oil out of the shaft seal than if you keep it at mid-line.

Not saying that is or isn't your issue, just more information to consider.
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Ride safe.

1995 K1100LT 0302044
1997 R1100RT ZC62149
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.)

Number 6 · Posted: Sat Nov 02, 2013 2:13 pm Post subject:

strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

I dont smell any smell at all. The oil that came out was very dark and rather thick, I drained the tranny and refilled it just now and of course it looked like new but it wasnt the same color and wasnt as thick as what came out of the weep hole. I just assumed that some of the transmission oil passed by a seal somewhere and washed a little of the grease of of the clutch shaft. I just rode it for 20 miles and it warmed up good. I didnt try to make it slip either and it was fine at 50 in 5th..hardly 3K but no load to speak of. The oil is at the center of the glass. I do burn some oil and try to keep it within the window. It's usually lower than higher.

strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

The only other abnormal thing I did was just before I noticed it slip I downshifted to 3rd and blasted past some cars. I was at 8500 on the tach, dont know what speed then I just shifted up and slowed down..It was right after that I noticed the slipping.

whyoldbill · Posted: Sat Nov 02, 2013 3:55 pm Post subject:

I misread your first post. I thought the tranny oil was low. I'd bet on that clutch seal and o-ring. I had the same issue at 45k, except mine never dripped out the weep hole
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'02 - GL1800

The desired effect is what you get when you improve your interplanetary funksmanship - George Clinton

SugarHillCTD · Posted: Sun Nov 03, 2013 8:06 am Post subject:

I did have a few drops coming out the bell housing weep hole but rode that way for a few months.

Then I was riding with another member- Saltcreek- and did a downshift to pass a slower moving vehicle. Cranked the throttle and the revs went up too fast for my road speed.

This was what I found....("O" ring on right side- hard as a rock)

Replaced the rear engine seal and clutch disc.

Good as new.
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strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

O-ring brought the shuttle down. It wouldn't be so bad if you didnt have to dissasemble so much to get at the clutch. To me, that greasing of the clutch spline taking all of that time and BMW expecting it to be done every year is just not right. But, so far my crying about it isnt getting the job done.

Flying Duck · Posted: Sun Nov 03, 2013 2:38 pm Post subject:

Flying Duck · Posted: Sun Nov 03, 2013 3:27 pm Post subject:

I don't think overfilling the transmission is an issue.

When I bought my red K1100RS I picked it up in Malibu and then rode it pretty hard up the coast so SF. In SF, I stopped at a friend's place to spend a little time giving it a once-over.

When I checked the trans oil level, is was FILLED TO THE BRIM. The PO (previous owner) had had it serviced at Ventura BMW and some dipstick tech there had WAY overfilled it. Including me riding to SF and the PO since he had it serviced the bike had at least 1,000 miles on it with a full transmission.

I drained it and filled it the correct level and it's been fine for the last 30K.

Since the transmission is vented to the atmosphere then the only additional strain that put on the input seal was the hydrostatic pressure of a few inches of oil. In your case less than that.
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strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

My buddy that I bought this bike from said he had just tore it down at 50K and lubed everything. Either he didnt replace the seal or he screwed it up putting it back together I guess. Either way it looks like I will be getting real close to my new friend real soon. So I will need an input seal, O ring, friction plate, clutch shaft seal..And a mechanics hat..I am thinking of that oil resistant clutch too..

strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

Can the tranny vent get plugged and maybe cause extra pressure. I have seen spiders do worse things

strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

There is a retaining fixture mentioned in my book..#11-2-800. Does this just hold the plates in while I am pulling the thrust ring? I am confused as to how to line everything up as this is supposed to be very critical too. Can I put it back together and it not work?

Scott_Anderson · Posted: Mon Nov 04, 2013 2:12 pm Post subject:

I fixed your picture link,

As far as the part #1 it's only function is to prevent/limit rotation when you remove/install and torque the clutch nut.
Personally I've just used a block of wood to keep it from turning.
_________________
Ride safe.

1995 K1100LT 0302044
1997 R1100RT ZC62149
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.)

strip4 · Joined: 18 Jun 2013 Posts: 24 Location: daytona beach fl

OK Kool..I saw that now in Ducks links..What about a centering tool? Can the plates go in wrong?

Scott_Anderson · Posted: Mon Nov 04, 2013 5:47 pm Post subject:

Well to be honest, you can make yourself a centering tool.

I bought one(centering tool from flea-bay)--thinking it would be easier than trying to fabricate something, but I still had to put in a lathe and turn it as it wasn't to spec.

Some have used a socket and the pushrod, others have used a screw driver and a socket.

The most centered you can get the friction disk the less trouble you will have getting the transmission lined up to fit.
_________________
Ride safe.

1995 K1100LT 0302044
1997 R1100RT ZC62149
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.)