BMW K bikes (Bricks)


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1Back to top Go down   gearbox out,what next Empty gearbox out,what next Fri 10 Apr 2015, 23:30

k100newbie

k100newbie
active member
active member
Ok ive pulled the gearbox out of my new 84 k100 as i wanted to go through everything to make sure its all ok. there was some oil sitting under the clutch plate so im assuming thats either from the box or the engine leaking through the rear main. there also seems to be a bit of a leak out of the final drive as well. so question is how much is suggested while i have all this out and where is the best place to get the parts.

    

2Back to top Go down   gearbox out,what next Empty Re: gearbox out,what next Sat 11 Apr 2015, 01:09

Rick G

Rick G
admin
admin
If you have the gearbox out put a new rear main seal in, it probably has never been changed.
I use a viton seal that is 8 x 50 x 80mm they will sting you for about $80 but scream like a stuck pig and say you got one for the other bike here last year for $34 and they probably will relent. If not go elsewhere and try it.
smell the oil to tell where it came from, gearbox oil has a very sulphur smell.
Final drive seal is very easy and straight forward. If the disc bolts, 2 socket head counter sunk, are difficult use heat to soften the loctite. Remove the 8 x 8mm socket screws and split the case and replace the seal taking care to make sure the running surface for the lip is good and clean. Replace the seal and making sure the O-ring and shims are in place.
Parts I usually buy from Motobins in UK but seals are available in Oz. https://www.motobins.co.uk/


__________________________________________________
"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 1999 K1100 LT with a Big Block 1200
    

3Back to top Go down   gearbox out,what next Empty Re: gearbox out,what next Sat 11 Apr 2015, 01:15

k100newbie

k100newbie
active member
active member
Thanks Rick, where can I get the Viton seal in tasmania/australia should I replace the seal in the front of the box as well or is this tricky ? I'm assuming the oil is rear main as more oil has appeared since the box being out

    

4Back to top Go down   gearbox out,what next Empty Re: gearbox out,what next Sat 11 Apr 2015, 01:28

Rick G

Rick G
admin
admin
Any of the big bearing suppliers will have them or be able to get them I buy most of mine at State wide Bearings http://www.statewidebearings.com.au/


__________________________________________________
"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 1999 K1100 LT with a Big Block 1200
    

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