BMW K bikes (Bricks)

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StandardK


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All back together, teeny shroud bolts now coated in anti-seize... Hopefully the heatproof black will stay on the shroud for a while. 

1983 K100 RS Project - back to the 80’s - Page 2 Ed7bb010

    

MartinW

MartinW
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I just used Rustoleum satin black on mine and it hasn't been heat effected yet. So heat proof will definitely stick.
Regards Martin.


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K75s Hybrid
    

92KK 84WW Olaf

92KK 84WW Olaf
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@MartinW wrote:I just used Rustoleum satin black on mine and it hasn't been heat effected yet. So heat proof will definitely stick.
Regards Martin.
Brilliant paint but not sure how it works. Used it on part of the frame of my K100RT in 2013 and still looks like new. Used in on my heat shield and not so good but I used bike in winter and there is salt ends up trapped under it. My RS got a new heat shield last summer and it wasn't in great shape when I swapped it this time for another brand new one. Might put Rustoleum on the now old one as it came off in one piece.

I love the disc, mine was one of those too ....while you are there with that heat gun crack out the two bolts holding the disc on and put them back with anti seize.....


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1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 102,50 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell No 34,600 miles
    

54Back to top Go down   1983 K100 RS Project - back to the 80’s - Page 2 Empty Another job completed, Callipers on Thu Feb 13, 2020 5:10 am

StandardK

StandardK
Silver member
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Another job done, all 3 callipers overhauled & refitted. Not without some drama, the overhaul kits were bought from Motobins that quoted a kit (Ariete branded) to suit early K100 and some R series, so without any thought I ordered the 3 sets. HOWEVER on rebuilding the first calliper the pistons/pots refused to pass through the new seals, at first glance the old & new seals looked identical size wise - both to suit 38mm pistons, however without a set of digital verniers to check it was impossible to tell if there was a difference in seal profile size. The following corresponding OEM number is quoted by Motobins for the Ariete overhaul kits, however after researching that BMW number it appears it is ONLY for various R series:  

34 21 1 237 234  

So, after scratching my head (and feeling a tad cranky) 3 more sets of overhaul kits were ordered, this time genuine Brembo kits with the following corresponding OEM number:   

34 11 2 310 493   

Which DOES match the BMW recommendation for the early K’s.....and fit perfectly. My guess is (without measuring with callipers) is that the K100 calliper seal relief is marginally shallower than an R calliper....or is it an Ariete thing? All I know is it is appears to be impossible to use the Ariete kit seals. 

You live & learn, to check & check again. Rolling Eyes 

Much better....

1983 K100 RS Project - back to the 80’s - Page 2 76068210

New Brembo seal on left, Ariete branded new seal on right....

1983 K100 RS Project - back to the 80’s - Page 2 Ecd04010

    

92KK 84WW Olaf

92KK 84WW Olaf
Life time member
Life time member
That's the same problem I ran into but I never got to the end of it....now I know. You did it by the book as you saw it, just like I did but the book was wrong.


__________________________________________________
1992 K100LT 0193214 Bertha Alaska Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 102,50 miles
1983 K100RS 0011171 Fricka 606 29,495 miles Damn K Pox Its a Bat outta Hell No 34,600 miles
    

StandardK

StandardK
Silver member
Silver member
@92KK 84WW Olaf wrote:That's the same problem I ran into but I never got to the end of it....now I know. You did it by the book as you saw it, just like I did but the book was wrong.
Very annoying indeed, serves me right for not checking the OEM numbers I guess. 

BTW Motobins have refunded the kits, can’t fault their service in that regard.

    

57Back to top Go down   1983 K100 RS Project - back to the 80’s - Page 2 Empty Nothing exciting update Yesterday at 10:12 pm

StandardK

StandardK
Silver member
Silver member
The rebuild progresses, After all external fuel & vacuum hoses/plugs were replaced, the original injectors had a birthday by being cleaned & tested, all 4 were pretty much in spec surprisingly & flowed pretty much the same, albeit still being full of crap. 

On first startup after the external work she still wasn’t too happy until warm and took several hits of the starter, and throttle could not be touched. I was putting off changing the in-tank filter & piping until the tank was painted, but gave myself a slap and pulled the filter....she was shagged, you could barely blow through either way and had a manufacture date of 22/04/03...Shocked not to mention the rubber lines perished and swollen. Funnily enough, after the in tank work she started up first hit of the button dead cold. Not enough pressure for a cold start? 
1983 K100 RS Project - back to the 80’s - Page 2 A1e86010

The build’s now at the far end, with the brakes to finish off, tyres, battery & fresh paint. 

And yes Martin, you’re tuning skills may have to be booked in in the near future Very Happy

Regards

Dan

    

MartinW

MartinW
Life time member
Life time member
No problems Dan anytime. Are you going to the swap meet?
Regards Martin.


__________________________________________________
K75s Hybrid
    

StandardK

StandardK
Silver member
Silver member
@MartinW wrote:No problems Dan anytime. Are you going to the swap meet?
Regards Martin.
I hope so - i’ve pencilled it in, barring anything else coming up I’m keen cheers

Dan

    

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