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1Back to top Go down    Clutch spline lube question? on Mon May 21, 2018 7:06 am

dakelvinator

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Hi I am planning a main rear seal replacement this weekend with spline lube and clutch friction plate replacement. I just have a few questions if anyone can help answer i would be grateful☺
1) should i submerge the new seal in oil before placement for a period of time?
2) should i put lube on the back plate/flywheel splines?
3) what is the torque procedure for the main nut? i.e tighten to a certain torque then loosen than tighten to a different/final torque setting?
thanks in advance k.

    

2Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 7:57 am

92KK 84WW Olaf

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Make sure to buy a BMW rear main seal...also do the front gearbox seal and flywheel O ring.

You also likely to need drive shaft boot and clip, clutch pivot arm boot and clip, flywheel nut must be replaced, clutch bolts should also be new.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 82,200 miles
    

3Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 9:09 am

dakelvinator

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Hi Olaf yes I have the new parts All you mentioned except for the front gear box seal so I will order that now. Any advice on how to carefully remove the old seals?

    

4Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 2:02 pm

92KK 84WW Olaf

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Mine came out in the time honoured tradition of screwing a pair of self tappers into the old seals and pulling them out with an all essential vise grips.

Its kind of brutal so wait and see what else comes up but you most certainly do not want to damage any metal surfaces.



Last edited by 92KK 84WW Olaf on Mon May 21, 2018 3:30 pm; edited 1 time in total


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 58,645 now 82,200 miles
    

5Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 2:41 pm

duck

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Before you take the FD off, I'd recommend having a set of replacement bearings in hand. The plastic in the BMW ones often falls apart when you take the FD off and the needle bearings get loose.

In case it helps, here's my write-up on spline lubing an ABS II K1100:
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/splinelube/splinelube.htm

And here's some workarounds so you don't need a bunch of BMW special tools:
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/clutchnospecial/clutchnospecial.htm


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

6Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 3:37 pm

dakelvinator

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Hi Duck thanks for your reply and links what do you mean by the FD? Is that final drive? Or friction disk? Just so I can order some thanks again K.

    

7Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 3:50 pm

duck

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Sorry. Final Drive.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

8Back to top Go down    Re: Clutch spline lube question? on Mon May 21, 2018 5:00 pm

duck

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You can also use the right-angled end of a small nail puller like this around the edges to separate the clutch pressure plates:


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

9Back to top Go down    Re: Clutch spline lube question? on Tue May 22, 2018 4:26 am

dakelvinator

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Thanks I'll rig something up that looks similar, what about lube on the back plate/flywheel? Or is it just lube on the transmission spline 's

    

10Back to top Go down    Re: Clutch spline lube question? on Tue May 22, 2018 5:34 am

duck

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Aside from the splines the only thing that needs lubing is the ring that the clutch spring rides on. #2 in this diagram:


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

11Back to top Go down    Re: Clutch spline lube question? on Tue May 22, 2018 6:19 am

Dai

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When you use Duck's tool (or similar) to separate the plates, work round the plate doing a small bit at a time. The three pins that locate the assembly can

a: corrode in badly
b: bend easily if you put too much pressure on, preventing reassembly.

DAMHIK.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

12Back to top Go down    Re: Clutch spline lube question? on Tue May 22, 2018 6:45 am

dakelvinator

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Thanks guys that really helpful ☺ saves some head scratching! I am assuming I use the same lube on the clutch ring as i do the transmission splines? And can I use this lube on the output shaft and drive shaft and final drive spline's? Thanks again really appreciate your help, K.

    

13Back to top Go down    Re: Clutch spline lube question? on Tue May 22, 2018 7:32 am

duck

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Yes, you can use the same spline grease on the drive shaft splines that you use on the clutch splines.

Here's what the BMW K1100 service manual says regarding lubing the clutch parts when assembling:

Grease all lubrication points with
Optimoly MP 3.(Or whatever spline grease you're using.)

Lubrication points:
Contact surfaces of pressure plate/diaphragm
spring, wire ring, cone/tip of control rod.


I'd also put some anti-seize on the three pins to make the clutch easier to get apart the next time.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

14Back to top Go down    Re: Clutch spline lube question? on Tue May 22, 2018 8:21 am

dakelvinator

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Thanks for that just need to get clear in my head before I start doing it on Saturday k.

    

15Back to top Go down    Re: Clutch spline lube question? on Tue May 29, 2018 8:54 am

dakelvinator

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Well job done! Started on Saturday afternoon dismantle it then on Sunday put it back together. It looked like the main seal wasn't Leaking but the rubber ring/washer was tost! But I replaced the main seal anyway. New friction plate and spline lube as well. Took it out for a spin on Monday it seems a lot smoother less vibrations and nicer hear change. So hopefully it will be ok! I am fairly convinced the seal in the final drive is leaking as the drive shaft had hear oil all over it and hardly any at the gearbox end, the seal on the gearbox looks to have been replaced before and the transmission oil always seemed fine. Anyway next job is the water/oil pump and rear disc when i get the cash! Can the final drive be repaired? As hanes manual said to complex for the amateur! Or is a use one a better bet? Thanks again for the support/advice on this topic k.

    

16Back to top Go down    Re: Clutch spline lube question? on Tue May 29, 2018 9:04 am

duck

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It's not uncommon for the final drive pinion seal to leak. I think the biggest issue for DIYing it is having a tool to unscrew #3 in this diagram:

http://www.realoem.com/bmw/enUS/showparts?id=0572-USA---K569-BMW-K%2075%20S%20(0563,0572)&diagId=33_1564


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

17Back to top Go down    Re: Clutch spline lube question? on Tue May 29, 2018 9:15 am

dakelvinator

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I might leave it and keep an eye on the oil levels i think it's been like this for ages i remember putting lube on the final drive about 2years ago and seen oil in the swing arm but was not educated in k bikes so assumed it was ok. Is it ok to leave? Their is no external leak thanks k,

    

18Back to top Go down    Re: Clutch spline lube question? on Tue May 29, 2018 9:56 am

duck

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@dakelvinator wrote:I might leave it and keep an eye on the oil levels i think it's been like this for ages i remember putting lube on the final drive about 2years ago and seen oil in the swing arm but was not educated in k bikes so assumed it was ok. Is it ok to leave? Their is no external leak thanks k,

I don't think they leak that fast/much so it's probably OK to ride as is if you keep the FD topped off.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
http://www.ClassicKBikes.com
    

19Back to top Go down    Re: Clutch spline lube question? on Tue May 29, 2018 10:42 am

RicK G

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I have never seen them leak much, the most oil I have ever seen there is probably about a teaspoon full if that.


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"Every normal man must be tempted, at times, to spit upon his hands, hoist the black flag, and begin slitting throats." from Mencken's 1919 Prejudices

Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

20Back to top Go down    Re: Clutch spline lube question? on Tue May 29, 2018 10:56 am

dakelvinator

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That adds up with me as their was plenty of oil in the final drive! So it probably been like that long before i got the bike as their was plenty of gunk in the swing arm, I'll keep an eye it k.

    

21Back to top Go down    Re: Clutch spline lube question? on Wed May 30, 2018 4:20 pm

ReneZ

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Appreciating money is tight, but why don't you talk to your local BMW shop? If you take the FD off and just hand it to them the cost might not be as bad as bringing them the whole bike. If you leave them some time to do it that might help as well. Otherwise just bring it to them for loosening that nut and bring it back to them to tighten? Quite a few workshops are not too difficult in my experience, just ask around.

Good luck, Rene


__________________________________________________
Greetings from Florida! Having a 'new' K :cyclops: Surprised-o:

Rene


BMW K100 - 1985 (0030029)
BMW K1200GT - 2003 (ZK01223)
    

22Back to top Go down    Re: Clutch spline lube question? on Wed May 30, 2018 6:20 pm

dakelvinator

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Good idea Rene that is something i could look into my nearest bmw independent shop is about 20miles away good for taught☺ thanks k

    

23Back to top Go down    Re: Clutch spline lube question? on Wed May 30, 2018 7:22 pm

mike d


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Just to let you know that full members of The BMW Club, UK have access to their Tool Hire facility. All manner of specialist tools and technical literature at minimal cost to hire.

Mike

    

24Back to top Go down    Re: Clutch spline lube question? on Thu May 31, 2018 4:15 pm

dakelvinator

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I'll have a look at joining thanks i didn't know that☺ k.

    

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