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   Fitting rear main seal - wet or dry Empty Fitting rear main seal - wet or dry on Thu Jul 02, 2015 7:34 pm

Rockman

avatar
Life time member
Life time member
I'm in the process of reassembling my motor and since I have a new rear seal I may as well fit it. The question is do I fit it dry or put oil on the seal lip before I put the clutch carrier back in place?

I've recently done the rear main on my R100GS and the wisdom there is that you fit it dry so that the teflon on the seal lip gets spread over the mating surface. The rear main on the K100 is different though and I wonder if the same principal applies.

Who has done one recently and what to you recon? The seal came from Motobins if that makes any difference.

    

2Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Fri Jul 03, 2015 12:18 am

RicK G

RicK G
VIP
VIP
You should soak them in oil for 2 hours prior to fitting then wipe the excess oil from it, probably just to prevent it spreading over all and sundry, then fit it with 0.5mm protruding at the rear. Apparently this is because the newer seals have the lip in a different place relative to the older ones but I have found that providing the surface is good then put it in flush.


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

3Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Fri Jul 03, 2015 6:49 am

Ed

Ed
Life time member
Life time member
moto bins made the same suggestion on their catalogue. 
It's time for this uneducated grease monkey to explore the inner depths of the Rear main . 
apart from the main seal could I kindly ask , what else needs to be placed in the shopping kart to replace the main seal. washers, clips etc.
hope it goes in for you alright Rockman.


__________________________________________________
1987 K100RT  Ex- police        
1989 K100LT  Ol' Blue and "Kart" the Kamper trailer.  now KAPUT . 
1993 K1100RS  0194321         Colour #690 Silk Blue  aka " Smurfette"
2018 Kart upgrade.
Fitting rear main seal - wet or dry 10_x_110
    

4Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Fri Jul 03, 2015 6:57 am

RicK G

RicK G
VIP
VIP
You will need to replace the big O-ring as well Ed


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

5Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Fri Jul 03, 2015 8:42 am

Ed

Ed
Life time member
Life time member
Part No.40120
BMW Part No.
11 11 7 666 186



is this the one Rick .  


__________________________________________________
1987 K100RT  Ex- police        
1989 K100LT  Ol' Blue and "Kart" the Kamper trailer.  now KAPUT . 
1993 K1100RS  0194321         Colour #690 Silk Blue  aka " Smurfette"
2018 Kart upgrade.
Fitting rear main seal - wet or dry 10_x_110
    

6Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Fri Jul 03, 2015 10:45 am

RicK G

RicK G
VIP
VIP
No this is the one Ed 11211 460456


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

7Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Sun Jul 05, 2015 8:02 pm

Rockman

avatar
Life time member
Life time member
groverK wrote:moto bins made the same suggestion on their catalogue. 
It's time for this uneducated grease monkey to explore the inner depths of the Rear main . 
apart from the main seal could I kindly ask , what else needs to be placed in the shopping kart to replace the main seal. washers, clips etc.
hope it goes in for you alright Rockman.
Its in, I didnt soak it but it received a good coating of oil so it should be ok I hope.

And yes with the O ring. You'll destroy the old one getting it out.

The only other problem I found was that the locating pins on the clutch were siezed in place and a lot of prising was needed to get the cluch off. I ended up damaging the clutch plate doing this. It was only just in spec anyway so I'd have replaced it.

Other than that, the motor is now back together. Replaced the output shaft, cleaned the starter clutch, replaced the oil sight glass, found out why the choke didnt work, replaced radiator hoses, put in new injectors. Just waiting for the clutch plate and the rubber boots from the plenum chamber to the throttle bodies to arrive and I can begin reassembling the bike.

    

8Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Sun Jul 05, 2015 8:33 pm

RicK G

RicK G
VIP
VIP
Check the clutch steel plates for dishing, I have seen them so dished that only about 4mm was contacting on the outer edge of the plate.


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

9Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Sun Jul 05, 2015 8:53 pm

Rockman

avatar
Life time member
Life time member
@RicK G wrote:Check the clutch steel plates for dishing, I have seen them so dished that only about 4mm was contacting on the outer edge of the plate.
all good Rick. They are flat using a steel ruler to check. Plate looks like it was contacting over the full friction surface.

On a different note, What is the recommended hose clamps for the inlet manifold rubber connectors? Munich has them listed but at $4.95 each plus postage, a set of 8 is expensive.

    

10Back to top Go down   Fitting rear main seal - wet or dry Empty Re: Fitting rear main seal - wet or dry on Sun Jul 05, 2015 9:36 pm

RicK G

RicK G
VIP
VIP
Here is a Suzuki part number and some text to prove RT is to blame if they are wrong
Yay, 4 new throttle body clamps arrived today (Suzuki part no. 0940248208), screw tight types, black. Post 33 of http://www.k100-forum.com/t5166-k-pox-and-its-insidious-mental-side-effects#top
A few here have used them so I reckon they are OK.


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

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