Wild Dog Adventure Riding

Technical Section => Make / Model Specific Discussions => BMW 1200 LC => Topic started by: Jughead on March 04, 2019, 03:12:00 pm

Title: R1200 GS LC Starting Issue.
Post by: Jughead on March 04, 2019, 03:12:00 pm
Would love to know what went wrong here.

Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on March 04, 2019, 03:13:48 pm
And the starter is FUBAR.
Title: Re: R1200 GS LC Starting Issue.
Post by: katana on March 04, 2019, 09:06:44 pm
Ridden in the sea?
Title: Re: R1200 GS LC Starting Issue.
Post by: silvrav on March 05, 2019, 01:09:00 am
I love the first row of pictures...its like spot the difference  :thumleft:
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on March 05, 2019, 06:29:20 am
I love the first row of pictures...its like spot the difference  :thumleft:

 :thumleft:

The same process is required to change the alternator stator.  Bloody rediculous. Have to do one next week.  :-[
Title: Re: R1200 GS LC Starting Issue.
Post by: Mikie on March 05, 2019, 06:58:32 am
 :o FUCK!!!!

Thats insane, almost as bad as some Fords that I have heard of, you have to remove the air box and radiator to change a light bulb
Looks like an expensive repair
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on March 05, 2019, 07:04:00 am
Ridden in the sea?

What would that have to do with it?
Title: Re: R1200 GS LC Starting Issue.
Post by: Mikie on March 05, 2019, 08:11:55 am
Ridden in the sea?

What would that have to do with it?

He is probably guessing from seeing all that rust
Title: Re: R1200 GS LC Starting Issue.
Post by: katana on March 05, 2019, 11:19:45 am
Ridden in the sea?

What would that have to do with it?
That bearing is more rusted than I would expect from even a dry worn bearing.  It is not clear on the photo, but it seems like the copper from the armature is also more than just missing.
Title: Re: R1200 GS LC Starting Issue.
Post by: BuRP on March 05, 2019, 01:15:40 pm
I love the first row of pictures...its like spot the difference

Yeah, that one little sneaky M6 bolt had me for a while  :P
Title: Re: R1200 GS LC Starting Issue.
Post by: Bravofox on March 18, 2019, 06:51:41 pm
I love the first row of pictures...its like spot the difference  :thumleft:

 :thumleft:

The same process is required to change the alternator stator.  Bloody rediculous. Have to do one next week.  :-[

Does one need to do this to remove the starter?
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on March 18, 2019, 08:10:48 pm
No, not the starter.  Starter is fitted to the RHS of the motor and is accessible from the outside.

However, the starter sprague clutch is located behind the flywheel, and for that the motor must come out.

Also the alternator stator is located inside the flywheel and requires motor to be removed to replace.
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on April 23, 2019, 03:34:39 pm
All fixed and pretty again!   8)

Title: Re: R1200 GS LC Starting Issue.
Post by: TheBear on April 24, 2019, 01:01:04 pm
You forgot the washer behind the bolt that holds the sprague clutch ......   :lol8:

Title: Re: R1200 GS LC Starting Issue.
Post by: Black_Hawk on April 24, 2019, 01:07:06 pm
What a big job this is  :o

How many hours did this little exercise consist out?
Title: Re: R1200 GS LC Starting Issue.
Post by: katana on April 24, 2019, 01:22:26 pm
You never said what caused this?
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on April 24, 2019, 02:44:13 pm
You forgot the washer behind the bolt that holds the sprague clutch ......   :lol8:

Shit!  That's where it came from!  :cussing:
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on April 24, 2019, 02:46:39 pm
What a big job this is  :o

How many hours did this little exercise consist out?

Probably a total of around 40, if you include the repairs to the crank and sourcing parts.  A straightforward job like just replacing the stator is around 12 - 15hrs
Title: Re: R1200 GS LC Starting Issue.
Post by: Jughead on April 24, 2019, 02:50:47 pm
You never said what caused this?

I suspect (although the owner is adamant that it is not the case) is that the rider missed a gear (or got a false neutral), motor over revved and while the revs were redlining he popped it back into gear.  The flywheel couldn't keep up with the sudden change in RPM and sheared the woodruff key holding it in place.