BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   Problems with my drive Empty Problems with my drive Sat Nov 15, 2014 6:41 am

AL-58

AL-58
Life time member
Life time member
Sometimes I just cant get myself out of bed and I find it very difficult to get started...

Sorry wrong list.

Went out for a ride today, 480km loop.  Somewhere along the way I began to notice a noise in the driveline, not loud but noticable.  Nothing on drive but always there on the over-run while slowing(off throttle). I tried using different gears but it made no difference to the level or frequency of the noise (so the gearbox is unlikely). Leaves the rear drive or the driveshaft as the source.

Once I got home I felt both my rear drive casing and Maries R1150R for comparison.  The RS rear drive housing was hot, Maries was just very warm.  I dropped the oil into a clean container.  The magnet on the drain plug had a good coating of small metal chips, the oil looked like dark grey metallic paint but didn't smell burnt at all.  So it looks like at least one bearing has failed.  I'll pull it out tomorrow to check the spline condition before deciding to rebuild(not in my skillset but I have people who can help) or source another replacement.  Hasn't had a bad life though, around 150,000kms, around 110,000 of that with the sidecar.

If I have to source a replacement it also gives me the chance to fit an RT unit to lower the gearing (better for sidecar use).

Anyone know where I can find a decent K100RT rear drive (aluminium finish, 20 spline)

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Problems with my drive K-dogs10
    

2Back to top Go down   Problems with my drive Empty Re: Problems with my drive Sat Nov 15, 2014 7:55 am

92KK 84WW Olaf

avatar
Life time member
Life time member
RS to RT will give you about 3%. Have to make sure you get 20 spline.
RS to K75 will give you about 11-12%, K75 is 20 spline and a straight swap. Might be worth it for sidecar use.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 39.885miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

3Back to top Go down   Problems with my drive Empty Re: Problems with my drive Sat Nov 15, 2014 8:00 am

AL-58

AL-58
Life time member
Life time member
Its an 87, the drive is original so its 20 spline.  I've run RT gears before, they suit just fine.  K75 would be too "revvy"

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Problems with my drive K-dogs10
    

4Back to top Go down   Problems with my drive Empty Re: Problems with my drive Mon Nov 17, 2014 12:58 am

AL-58

AL-58
Life time member
Life time member
Looks like my splines are knackered too.

Option 1- Replace rear drive and driveshaft.  I've found a matched pair, done 11,000kms, seller says splines are as new.  $450. All sounds good, just not sure of the price in todays market (ie you guys have turned me into a tight-arse)

Option 2- Strip the existing rear drive, get the pinion spline and driveshaft spline repaired.  Does anyone have any idea what $$ Bruno is looking for this repair.  I'll have to add new bearings into that one.  The time isn't an issue

Option 3- ???

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Problems with my drive K-dogs10
    

5Back to top Go down   Problems with my drive Empty Re: Problems with my drive Mon Nov 17, 2014 2:17 am

RicK G

RicK G
admin
admin
Bruno will want somewhere $750 - $800 plus freight both ways and that would be about $100 each way.
Have you tried Graeme Jones at Bega or Ron Falconer at Budgewoi 02 4390 4838 I just got a good Tank from him for $100
Ron has quite a bit of K100 and K1100 stuff.
One other potion is a 2.91 gear set from a paralever and cut the pinion shaft back. Check it out, I think the spline is still a 20 on them.  PJ was putting a Paralever gear set into a Monolever housing for his rig.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

6Back to top Go down   Problems with my drive Empty Problems with my Drive Mon Nov 17, 2014 2:23 am

Tom GKR

Tom GKR
Life time member
Life time member
G'Day, Just had the driveshaft spline replaced by Munich Motorcycles. Cost $300. The splines were ordered from Germany and welded on by someone at MM.Great job. Took about three weeks.The UJ seems to be fine so did not replace. Cheers Tom

    

7Back to top Go down   Problems with my drive Empty Re: Problems with my drive Mon Nov 17, 2014 2:33 am

RicK G

RicK G
admin
admin
I have been rummaging through the internet trying to find where to get the splines at close to a reasonable cost.
Still waiting for replies from a place in China who have a very good reputation for making that type of thing.
Motobins have the splines for 55 quid which is a touch on the extortionate side considering the process for making them and heat treatment.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

8Back to top Go down   Problems with my drive Empty Re: Problems with my drive Mon Nov 17, 2014 7:24 am

Dai

Dai
Life time member
Life time member
Rick: have you tried Motorworks? I've found there's a substantial difference in prices between the two, plus Motorworks do s/h stuff too.

http://www.motorworks.co.uk/vlive/Home/index.php


__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

9Back to top Go down   Problems with my drive Empty Re: Problems with my drive Mon Nov 17, 2014 9:08 am

RicK G

RicK G
admin
admin
I am looking at buying 100 at somewhere around $5 each or less which is about the price Motobins would be paying and they are getting away charging 55 quid because they are the only game in town.  There is nothing I like doing more than spoil some greedy buggers exorbitant profit margin.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

10Back to top Go down   Problems with my drive Empty Re: Problems with my drive Wed Nov 19, 2014 6:44 am

AL-58

AL-58
Life time member
Life time member
@RicK G wrote:I am looking at buying 100 at somewhere around $5 each or less which is about the price Motobins would be paying and they are getting away charging 55 quid because they are the only game in town.  There is nothing I like doing more than spoil some greedy buggers exorbitant profit margin.

I'm getting the drive and shaft from the 11,000km RT this Friday.  If you do get the spline repair bits in, I'll have a shaft worth fixing up.

I'll hang on to the buggered RS rear drive, but with a bad bearing and badly worn pinion spline I cant see what I'll do with it in the end.  Shelf decoration.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Problems with my drive K-dogs10
    

11Back to top Go down   Problems with my drive Empty Re: Problems with my drive Sat Dec 06, 2014 11:08 pm

AL-58

AL-58
Life time member
Life time member
The final result is good, the splines were just as the seller said, just like new.  i gave it a good dose of 50% moly grease on installation.

The RT gearing is about where I want to be, it now pulls away much more easily in first with no need to slip/feather the clutch at all and the revs aren't too bad at freeway speeds. I haven't tried it with the trailer yet.

The overall reduction from stock (2.81:1 and 130/90 17 tyre) to now (2.91:1 ratio and 155/82-15 rear tyre) is around 8.6% more revs.

Al


__________________________________________________
'87 K100RS/HRD sidecar (1100 motor)  sc25 
'92 K100RS-16v (Paint it Black)

'87 K100RT with Paralever backend

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

Problems with my drive K-dogs10
    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum