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Wc alternators

Posted: Wed Aug 21, 2019 1:58 am
by Mitch1100
Replaced the alternator belt on my R1200s, and the technician was telling me they've had a few Police late model water cooled BMWs where the alternators have failed...around a5k repair! It's actually mounted inside the engine casing between the crankcase and the gearbox and is a $1,500 part plus labor as engine has to be removed and split :shock:

Re: Wc alternators

Posted: Wed Aug 21, 2019 4:54 pm
by Humbug
Alternator sits on top of the crankcases at the front of the engine on the 12S, not inside as the technician stated. Four bolts to remove once you have removed the drive belt behind the front cover.

Re: Wc alternators

Posted: Wed Aug 21, 2019 11:17 pm
by Mitch1100
Humbug wrote:Alternator sits on top of the crankcases at the front of the engine on the 12S, not inside as the technician stated. Four bolts to remove once you have removed the drive belt behind the front cover.


No, technician was talking about late model water-cooled boxers...my bad :roll: The only pain in the butt is the final drive oil change on the 12s :?

Re: Wc alternators

Posted: Wed Aug 21, 2019 11:34 pm
by Neil178
Water cooled? Where is the swear filter? :)
Is that the final drive oil that never needs changing for the life of the bike? Who on earth thought that was a good idea and signed off on it? Answers on a postcard to the usual address please ...

Re: Wc alternators

Posted: Thu Aug 22, 2019 12:11 am
by Mitch1100
Guess the thought is the same with new alternators outlasting the bike. :roll:

Re: Wc alternators

Posted: Fri Aug 23, 2019 1:05 pm
by The Teutonic Tangerine
Neil178 wrote:Water cooled? Where is the swear filter? :)
Is that the final drive oil that never needs changing for the life of the bike? Who on earth thought that was a good idea and signed off on it? Answers on a postcard to the usual address please ...


it's still relatively easy to drain and refill just put 180 ml in not 200 or you'll blow the oil seal