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Old 03-29-2010, 09:31 PM   #1
Prairie Beemer OP
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Airhead shifter gasket

Busted out my 78 R60/7 this weekend after parking it for the winter. Runs like a top, but whack-a-mole oil leaks continue. Does anyone know how to remove and replace a leaky gasket where the shifter enters the transmission? I read a post on this somewhere, but I can't find it.
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Old 03-29-2010, 11:43 PM   #2
OldAndBusted
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there was an article in the last BMWMOA magazine about removing a seal from the input shaft of the transmission without opening the transmission. it involved drilling a hole in the seal and using a slide hammer with a screw attachment on the end of it to dig into that hole and yank the seal out. might work on the shifter seal too. just gotta be careful of everything behind the seal. they're not too thick.
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Old 03-30-2010, 01:39 AM   #3
Beemerguru
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Get seal, lean bike over on the right side against the wall, remove shifter, large screwdriver or small seal puller and remove old seal, clean up, install new seal, install shifter, bring bike back upright.

5-10 minutes max.
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Old 03-30-2010, 05:39 AM   #4
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Quote:
Originally Posted by Beemerguru
Get seal, lean bike over on the right side against the wall, remove shifter, large screwdriver or small seal puller and remove old seal, clean up, install new seal, install shifter, bring bike back upright.

5-10 minutes max.
That's it. No need to drain the oil that way.
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Old 03-30-2010, 06:55 AM   #5
Pelicanglider
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Just did this on my '77 R100. Pop out, tap in. Just make sure you get the right size. I used the parts fische on the Max BMW website and I got one too large (28mm instead of 26mm). Went a little crazy waiting for the right size. I'm OK now.
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Old 03-31-2010, 10:48 AM   #6
OldAndBusted
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geez i hadn't even thought that the shifter shaft just comes right out on those bikes. i'm used to my /2 where it's inside the case. yeah you can just pry it out with a regular seal puller.
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Old 04-01-2010, 03:04 PM   #7
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You can only imagine how thrilled I am to learn this can be done from the outside.

Thank you, my friends.
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Old 04-01-2010, 03:23 PM   #8
BrianK
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Just did it the way Beemer Guru describes, it works a treat. I put a bit of silicone seal on the outer diameter of the seal, SOP for me but YMMV.

Maybe it's just because I had the problem myself, so I'm noticing them, but I've seen a slew of inquiries about this seal/process recently. Tough winter for shifter seals, I guess.
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Old 04-02-2010, 07:25 AM   #9
Beemerguru
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Must be something in the air...I just did my 6th rear main seal in the last month
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