BMW K bikes (Bricks)

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1Back to top Go down   Leaking master cyclider Empty Leaking master cyclider Mon Jul 04, 2016 7:44 am

eire1400

eire1400
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Front master cylinder has developed a small leak. 
I've replaced the washer between the plastic reservoir and aluminium body but still leaking. 
I am thinking I need a rebuild kit?
Logged on to Realoem but the bit i need (number 21) is greyed out / not available?
What are my alternatives? Any one local got  spares?



http://www.realoem.com/bmw/enUS/showparts?id=0513-USA-03-1984-K589-BMW-K_100_RS_83_0502,0503,0513_&diagId=32_1967

    

2Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 7:47 am

TacKler

TacKler
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If you search through the Brakes section in either Motobins or Motorworks websites, they both should have them in stock.  Not cheap though. 

The size required is underneath the master cylinder, 13mm I think.


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Red 1991 K75S
    

3Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 8:05 am

Gaz

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Eire1400, if you go back to your your link for the RealOEM page, then up one level you will see there are two exploded views of the right side control; pick the centre graphic and you will see the plunger is nominated as item 23 (same item as greyed out 21 in your link) and it is indeed 13 mm as Tackler suggested.

Cheers


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

4Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 8:11 am

92KK 84WW Olaf

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I have had to do mine and the leak ended up meaning rebuild kit and piston but ok since.

However a little thing I noticed was that the wet weather and lever angle was trapping water that dripped looking like fluid. No brake problem and no fluid level drop.

For what its worth I have found that bleeding brakes on old brake systems buggers the seals on the wear ridges. Like when you are changing fluid. If doing it the old fashioned way don't drive the lever/pedal fully home on each pump stroke.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

5Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 9:05 am

Inge K.

Inge K.
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Gaz80 wrote:you will see the plunger is nominated as item 23 (same item as greyed out 21 in your link)

The one numbered as 21 is for ABS, number 23 is for non ABS.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

6Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 9:34 am

eire1400

eire1400
active member
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Thanks all.
Just rang Kearys bmw in little island. 91 euro for the repair kit. Shocked
48 pounds in motorworks.
Will double check the size stamp and order tomorrow.
Suppose front brakes are kind of important.

    

7Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 9:35 am

92KK 84WW Olaf

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I take it that its on the 84RS you are doing....just checking.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

8Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 9:36 am

92KK 84WW Olaf

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Motorworks probably quicker delivery. I get them in 2 days, if you get it in quick today have it Wednesday or Thursday.!


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

9Back to top Go down   Leaking master cyclider Empty Re: Leaking master cyclider Mon Jul 04, 2016 9:37 am

92KK 84WW Olaf

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Motorworks probably about €72-4 delivered. Worth trying Keary's for a 10% discount if they have them in stock but I suspect not.

Lee Honda had a contract for maintaining police bikes and may still have some stock from them. I got K100 brake pads off them last year when they were fitting new tyres for me. Just a thought.


__________________________________________________
1992 K100LT 0193214 Bertha 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 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 37,190 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

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