Full spline lube

[k11pfc]

I have been considering doing this job myself, reading up on various websites it's just about do-able but......speaking to Bahnstormer tonight just general chit chat while my mate was picking up his just serviced R1200c, they asked me if I have my bike serviced I told them I do it myself but did mention the spline lube, the guy asked if I wanted a price, laughingly I said yes.......£93!! for both ends, that's an hour and a half labour plus another £8 to clean up my Gear indicator switch....bloody bargain I think. I will at least be able to watch them do it for next time.

[frankenduck]

That sounds like just a drive shaft spline lube price to me.  What matters more is the clutch splines.

[k11pfc]

Yeah someone else just said that, damn, I thought I had peace of mind, now thats a huge job aint it? It's funny though, before all this info came on the internet I ran 2 k100's a 1984 8 valver and a 1990 16, the 8 I ran for 70k never touched the splines, the 16 I ran for 50k never touched them, maybe I was just lucky.

[orforester]

First time is about 8 hours and that is full time work.  Second time is about 6 hours, cause you actually know what you are doing.  Read up on it before hand.  While you are at it you can fix and get to know your Brick well!  New Alt and Battery are easy to install at the same time, new shock, brake bleed, new fuel lines..........opps maybe that is why it takes me two weeks!

[Snowy]

Just remember that its lot of work to get to the clutch splines but when you do its a 10 minute job. And then you have to put it all back together again. Still it is worth it and you can have a good look at everything you take off while you're at it and you'll learn a lot about your bike.

[ccarlsonnh]

It's funny though, before all this info came on the internet I ran 2 k100's a 1984 8 valver and a 1990 16, the 8 I ran for 70k never touched the splines, the 16 I ran for 50k never touched them, maybe I was just lucky.

I mentioned to a friend that I was thinking about tackling the spline lube and he said it's not hard... just pull the shaft out and do both ends.  I said, no, I mean the clutch splines.  He remarked that he'd never heard of that and his K75 has 98000 miles on it.  Guess he's been lucky too!  Still gonna do mine or have them done!

[jetpoweredmonkey]

I just did the full spline lube and mega service on my K100RS and found my clutch splines in excellent shape at 36000 miles.  They had been lubed at least once since leaving the factory and still had plenty of grease on them - but a good cleaning and fresh grease has the clutch and gearbox feeling like butter now compared to before.  It's some work, but it's worth it!

My thread below.  While you are in there, check the gearbox input seal, the rear main (output shaft) seal, and replace the nut holding the clutch housing, and the o-ring beneath.  The manual also recommends replacing the bolts holding the pressure plates together, it's cheap insurance.  If in doubt about any of these, replace them, it's not expensive and it will save you another trip into your bike's guts.

On my bike I found that the thrust washer behind the clutch housing was broken and causing vibration and rattles, not sure if the K75 has it or not, but it's a great time to check. 

http://www.motobrick.com/index.php/topic,3216.0.html

[Duc750]

Don't forget how much you use the clutch will effect how much the bike needs the clutch splines lubing. 98K of nice easy highway work will be easy on the splines and the clutch. 20k of hard work in town will be hard on the splines and the clutch. At the end of the day a spline lube is easier to do than a gearbox re build.

[detbmw]

I just did the full spline lube and mega service on my K100RS and found my clutch splines in excellent shape at 36000 miles.

I bought an '88 K75S (55K) last September. It's been on a buddy's lift ever since, I sent the drive shaft and FD off to Bruno in Canada to have the drive splines rebuilt - they were in really bad shape. I'll have it on the road as soon as I get my parts back. Over the last two months we have replaced all oils, drained and replaced the coolant, replaced the scratched windshield, fixed a broken piece of the fairing, and bled the brakes.

I want to do a clutch spline lube in a couple of months. My buddy is a great R-bike mechanic, but nobody around has tinkered with classic K's. Does someone have a step-by-step guide to pulling the bike apart and putting it back together again?