CX500 mech seals?
Done loads, my other bikes a CX........
.
Yep, its easier than dropping lumps a la CX
you just need to support the top of the mech seal when pulling the shaft through
I didnt, rushed things and broke it DOH!
I also found you need to pay attention on the face to face seal when refitting the pump to
the motor, or you may get oil weeping out.
It took me two goes to get that right.
As said, theres lots of info on the job here.
Edit:
its similar to a CX mech seal but the CX mech seal has two parts
the ceramic part sits in the impellor and butts up to the carbon face of the seal
the BMW is an all in one assembly which is why you need to take care.
Once you understand the caveats (and RTFM in my case) its quite easy
While I'm rantin on.......
When pulling the shaft through, STOP when the oil gear gets flush to the inner face
dont keep compressing the mech seal any more, it wont help
Also ensure the oil pump gears are fully home and flush with each face
before fitting the pump
A mate didnt get the smaller one fully seated and it sat proud of the face
so when he tightend up the pump bolts it cracked the casting. Ooh nasty !!
Tears before bedtime and all that and he had to buy a second hand pump.