BMW K bikes (Bricks)

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1Back to top Go down    1987 RS Engine small renovation on Sat Mar 12, 2011 7:55 am

LifeGuard

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Hi
As many of us know smoe old K-engines have one common ailment - noisy work when they are cold.
I bought my brick in October 2009. She was little bit noisy when she isn't warmed up.
And the noise intensified lately so I decided to repair it.








I paste more photos and I describe the repair more detail ... soon

http://tchorzewski.net
    

2Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 11:16 am

LifeGuard

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I found the culprit of noise:

http://tchorzewski.net
    

3Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 11:53 am

Crazy Frog

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Sorry for the bad news, but this could be a very expensive repair.
But wait....
First, say a big "Thank You Bert"!
Now, check this. This part is very difficult to find, but this one is the cheapest that I ever seen.


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1986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

4Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 2:12 pm

Oldgoat

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Nice work Lifeguard! This is the type of stuff I've been looking for on the motor. Hopefully this will encourage more folks to post their engine work bounce

OG

    

5Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 2:14 pm

Oldgoat

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Wow, Nice find Bert! That's a crazy price if it a clean unit.

OG

    

6Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 2:57 pm

LifeGuard

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@Crazy Frog wrote:Sorry for the bad news, but this could be a very expensive repair.
But wait....
First, say a big "Thank You Bert"!
Now, check this. This part is very difficult to find, but this one is the cheapest that I ever seen.

Thanks Crazy Frog.
I am aware of the fact that normally it would cost a lot of money to change output shaft.
I bought 12 rivets version of output shaft from K1200. I hope that it will fit.

(12 rivets) output shaft
K1200 - 11211464947
K100 - 11211461499

http://www.bmwmcchattanooga.com/showassembly.aspx?ukey_assembly=188693

http://tchorzewski.net
    

7Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 4:07 pm

Crazy Frog

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Their web site is very good. They have the ETK online like RealOEM.com


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1986 k75, 1985 K100rt, 1985 K100rt/EML sidecar.
    

8Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 4:52 pm

LifeGuard

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In water pump I have an old type of rotator



BMW recommends replacing this when rebuilding any "old" style but servicable K bike pump.


Is it necessary?

http://tchorzewski.net
    

9Back to top Go down    Re: 1987 RS Engine small renovation on Sat Mar 12, 2011 7:40 pm

Guest


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The 'old' parts of the water pump will not retrofit to the 'new' type. Replace the mechanical seal kit and the impeller as a set.

    

10Back to top Go down    Re: 1987 RS Engine small renovation on Sun Mar 13, 2011 6:55 pm

Brickee

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Hope I can jump in on this thread. I've got my bike apart and I noticed that I have the old impeller. I know I have to replace the seals w a new impeller, can I reuse the nut or do I have to change it to use the bolt? If so, what else will I need to order. I'm looking at the Motobins site and they have the kit and impeller and would like to make just one order. Thanks to all for the input on this site, I would never have attempted taking this bike apart without knowing this invaluable resource was here.


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86 K100RT VIN 0053533

The good news is, I no longer have senior moments. The bad news is, now it's a constant state of mind.
    

11Back to top Go down    Re: 1987 RS Engine small renovation on Sun Mar 13, 2011 7:02 pm

Guest


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Just buy that kit from the 'Bins. It's complete.

    

12Back to top Go down    Re: 1987 RS Engine small renovation on Sun Mar 13, 2011 7:21 pm

Brickee

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Thanks TWB, done and ordered!


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86 K100RT VIN 0053533

The good news is, I no longer have senior moments. The bad news is, now it's a constant state of mind.
    

13Back to top Go down    Re: 1987 RS Engine small renovation on Mon Apr 04, 2011 11:47 am

LifeGuard

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progress! I bought the absorber version 12 and 6 rivets Smile
of course I will mount 12-rivets version

http://tchorzewski.net
    

14Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 14, 2011 2:17 am

LifeGuard

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some photos of the restoration


the pump after disassembling:



renovated and cleaned "new" output shaft:







starter cleaning:



exhaust elements ready for polishing:



purchased items:



adhesives:



pump after renovation (cleaning, sandblasting, powder cating)







stainless screw plug:



clutch centering tool



differences between old and new timing chain
(new - bottom, old - top):


new - left, old - right:



bon appetit Smile

http://tchorzewski.net
    

15Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 14, 2011 3:06 am

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Nice work, Lifeguard! It's good to see the photos of a job done thoroughly.

    

16Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 14, 2011 4:04 am

K-BIKE


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You are the MAN!,
Excellent work,
Regards,
K-BIKE

    

17Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 14, 2011 4:52 am

LifeGuard

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this is just the beginning Smile

more pictures soon...

I start to make the engine at the weekend

http://tchorzewski.net
    

18Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 14, 2011 6:42 am

BIG D

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Cool

Very well done LifeGuard,
first class pictures look forward to the next installment.

BIG D

    

19Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 14, 2011 11:56 am

Oldgoat

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Outstanding work so far Lifeguard. Keep it coming!

OG

    

20Back to top Go down    Re: 1987 RS Engine small renovation on Sun Apr 17, 2011 4:14 pm

LifeGuard

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another set of photos from weekend:

I started assemble a water pump
my inspiration:
http://hrsbstaff.ednet.ns.ca/bvogel/K100/oil_pump/oil-pump-seals-replacement.htm







cleaning the engine:






setting timing chain:







setting housing with sealant:

















replacement alternator carbon brush:













differences between old and new alternator clutch rubber:





I destroyed output shaft seal at the end of today work. I have to order new one... f#ck :/
$ 30 USD I'm in the back



enjoy photos, more soon Smile

http://tchorzewski.net
    

21Back to top Go down    Re: 1987 RS Engine small renovation on Sun Apr 17, 2011 5:20 pm

Oldgoat

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Just outstanding Lifeguard! Very Happy Keep up the excellent work!!

OG

    

22Back to top Go down    Re: 1987 RS Engine small renovation on Mon Apr 18, 2011 6:46 am

blaKey

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We love photos!

Brilliant LifeGuard!


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Neil
K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

23Back to top Go down    Re: 1987 RS Engine small renovation on Wed Apr 27, 2011 5:27 pm

LifeGuard

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next photos...

I made special tool for embedding sealer:








BMW has developed a new type of sealant, I hope that a more persistent.
It seems that these new sealers hurt less shafts, because they are delicate.







cluth mounting:







old contact spring:



new one:



pump:







polishing exhaust:





















enjoy photos, more soon

http://tchorzewski.net
    

24Back to top Go down    Re: 1987 RS Engine small renovation on Wed Apr 27, 2011 9:25 pm

krambo

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I look forward greatly to the next installment Wink


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1984 BMW K100RT, 1993 BMW K1100LTIC,1982 Kawasaki KZ1100 Spectre
"Aut viam inveniam aut faciam."
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25Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 28, 2011 4:23 am

charlie99

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fantastic work lifeguard ......im impressed !!!


how did you polish the exhaust up ? ive never done it before ....have seen the results ...but would love to find out how ...

cheers


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

26Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 28, 2011 5:37 am

LifeGuard

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@charlie99 wrote:fantastic work lifeguard ......im impressed !!!


how did you polish the exhaust up ? ive never done it before ....have seen the results ...but would love to find out how ...

cheers



In the photo you can see the brown "abrasive wiper" this serves to remove major contaminants. Then I used sandpaper (400-600) dipped in oil. When I reached the clear matte metal the next step was polishing with paste. I used drill with felt tip...
Stainless steel polishes very nicely because it contains more than 13% chromium Smile

http://tchorzewski.net
    

27Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 28, 2011 6:02 am

charlie99

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lifeguard ...i had imagined something simillar ....working my way carefully to remove layers of "crud" to clean layers of metal.

i guess ill have to get some of that paste and a good felt pad for the drill .....thanks for replying ....


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%O
    

28Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 28, 2011 6:09 am

BIG D

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Cool

Great stuff lifeguard, brilliant work,

BIG D

    

29Back to top Go down    Re: 1987 RS Engine small renovation on Thu Apr 28, 2011 7:49 am

blaKey

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How humbling...

I'm pretty chuffed if I change the spark plugs without cross threading them!

Excellent work LifeGuard!


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Neil
K100RS 1986 RED!
K100RT 1987 (now nekkid with red bits)

Remember Rule No. 6
    

30Back to top Go down    Re: 1987 RS Engine small renovation on Wed May 04, 2011 7:58 pm

LifeGuard

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I finaly made bike, there was a leak near the pump, I unscrewed and sealed better and screwed stronger.
There is no noise around clutch. mission acomplished

Photos in one place

http://tchorzewski.net
    

31Back to top Go down    Re: 1987 RS Engine small renovation on Wed May 11, 2011 12:19 am

Oldgoat

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Really great work LifeGuard! What did you paint your oil sump with if I may ask?
Thanks,

OG

    

32Back to top Go down    Re: 1987 RS Engine small renovation on Wed May 11, 2011 1:19 am

LifeGuard

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This is powder coating. As the car alloy rims are painted. Paint is chemically resistant and durable

http://tchorzewski.net
    

33Back to top Go down    Re: 1987 RS Engine small renovation on Wed May 11, 2011 10:37 pm

Oldgoat

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I had a feeling you were going to say powder. It looks fantastic! Cool I've been trying to resist calling the shop here, but results like this make it hard to resist, lol!

OG

    

34Back to top Go down    Nice Work on Thu Jan 17, 2013 9:12 pm

rotormotored

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What great work you are doing, Lifegaurd. I hope my exhaust will shine like yours.
I also have a 1987 K100rs and I'm going to begin posting the whole experiance here for all of you see and comment on. I know there in much work to do but I think I've to the right place for this new project.
Ed

    

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