BMW K bikes (Bricks)


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1Back to top Go down   What is this washer? Empty What is this washer? Sun Aug 04, 2013 10:15 pm

ltisz

ltisz
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I'm doing a rear main seal/o-ring replacement along with a spline lube and replacing pretty much every bit of rubber from the engine to the final drive right now. I had just finished putting the transmission back on when I noticed a washer on the ground that I don't recall taking out. My camera's broken right now so I unfortunately don't have any pictures, but it's 40mm outside diameter, around 33mm inside diameter, and 1.5mm thick. It looks like it's made of copper.

At first I thought it might have been the thrust washer - #10 in the lower left in this pic:

 

but it seems too thick for that - those are 1mm or 1.25mm. Also my K100 was built in late 1984 and I've read that thrust washer isn't present on some of the earlier Ks.

Any ideas? Thanks everyone! This forum has been a huge help as I work my way through this whole procedure.


__________________________________________________
1985 K100RS
    

2Back to top Go down   What is this washer? Empty Re: What is this washer? Sun Aug 04, 2013 10:30 pm

Rick G

Rick G
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"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 1999 K1100 LT with a Big Block 1200
    

3Back to top Go down   What is this washer? Empty Re: What is this washer? Sun Aug 04, 2013 10:38 pm

ltisz

ltisz
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Does that sit behind the ball bearing (#11)? I never removed that.


__________________________________________________
1985 K100RS
    

4Back to top Go down   What is this washer? Empty Re: What is this washer? Sun Aug 04, 2013 10:58 pm

Rick G

Rick G
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It most likely came out when you removed the clutch carrier they usually do.


__________________________________________________
"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 1999 K1100 LT with a Big Block 1200
    

5Back to top Go down   What is this washer? Empty Re: What is this washer? Sun Aug 04, 2013 11:12 pm

ltisz

ltisz
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Dang. Well, I guess I'll be ordering a couple more o-rings so I can get back in and put it where it should be. Hopefully I can piggyback it on the order for the clutch boot that I didn't expect to break, haha. At least I know what I'm doing this time!

Thanks!


__________________________________________________
1985 K100RS
    

6Back to top Go down   What is this washer? Empty Re: What is this washer? Sun Aug 04, 2013 11:27 pm

Rick G

Rick G
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They aren't exactly easy things to get out those O rings. I have had success with a .6mm piece of MIG wire with a small 90° at one end to get behind then work it out with the thread going round and round but I think that at $1 each they aren't worth the trouble.


__________________________________________________
"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 1999 K1100 LT with a Big Block 1200
    

7Back to top Go down   What is this washer? Empty Re: What is this washer? Mon Aug 05, 2013 12:20 am

ltisz

ltisz
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active member
Okay, I took the transmission, clutch pack, and clutch housing, destroyed my o-ring, and got back to the rear main seal/output shaft area. But the washer doesn't fit! With it in place, there is no way to get the clutch housing back on the output shaft. So, it can't be the thrust washer or the shim from either of the diagrams here. I inspected the starter while I was taking the trans out, could it be part of that?


__________________________________________________
1985 K100RS
    

8Back to top Go down   What is this washer? Empty Re: What is this washer? Mon Aug 05, 2013 12:30 am

ltisz

ltisz
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Got my camera working:



Still a mystery!


__________________________________________________
1985 K100RS
    

9Back to top Go down   What is this washer? Empty looks Mon Aug 05, 2013 12:34 am

ibjman

ibjman
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looks like a sealing crush washer to me.
I'm not at all sure......does it happen to match the drain plug or fill plug for the trans????
Ibjman

    

10Back to top Go down   What is this washer? Empty what about Mon Aug 05, 2013 12:36 am

ibjman

ibjman
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what about an exhaust pipe gasket to the cylinder head?
 Did you have any of the header pipes off?

    

11Back to top Go down   What is this washer? Empty Re: What is this washer? Mon Aug 05, 2013 12:39 am

ltisz

ltisz
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YES!!! It is the exhaust header to cylinder seal! I just went out and checked and 3/4 of them are there! Thank you so so so much ibjman, I can sleep tonight!!!


__________________________________________________
1985 K100RS
    

12Back to top Go down   What is this washer? Empty here ya go Mon Aug 05, 2013 12:41 am

ibjman

ibjman
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11 62 7 662 083  GASKET RING - C32X40    4   $2.19......Part #4 in the picture

What is this washer? Exh10

Regards, Ibjman

    

13Back to top Go down   What is this washer? Empty sorry Mon Aug 05, 2013 12:42 am

ibjman

ibjman
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Sorry you had to go all that way back in for nothing........sometimes mechanical lessons are hard learned

    

14Back to top Go down   What is this washer? Empty Re: What is this washer? Mon Aug 05, 2013 12:44 am

ltisz

ltisz
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If I didn't have at least one story about putting something almost completely back together before taking it back apart for no good reason, I wouldn't be much of a mechanic.


__________________________________________________
1985 K100RS
    

15Back to top Go down   What is this washer? Empty Portland Mon Aug 05, 2013 1:48 am

ibjman

ibjman
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I was just in your city 10 days ago with my wife & met up with 3 others from the forum at the Salem BMW rally.
Any chance you made it there?

    

16Back to top Go down   What is this washer? Empty Re: What is this washer? Tue Aug 06, 2013 12:37 am

ltisz

ltisz
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Unfortunately I missed it, I had made plans for that weekend far in advance that I couldn't change once I realized. A couple of friends of mine made it down there and made me real jealous when they told me all the different bikes they tried out. Next time, definitely!


__________________________________________________
1985 K100RS
    

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