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1Back to top Go down   K1100 hand brake reservoir leak Empty K1100 hand brake reservoir leak Sun May 05, 2013 4:43 pm

DeRodster

DeRodster
Life time member
Life time member
Hello,
Out for a long spin yesterday. At some point I noticed fluid on the rt side storage comp. cover.
looks wet under reservoir.
Brake had been ''stiff'' on return for a while.
Is it likely to be seals ?
how do I go about fixing it ?

ta
Rod


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

2Back to top Go down   K1100 hand brake reservoir leak Empty Re: K1100 hand brake reservoir leak Sun May 05, 2013 5:41 pm

MikeP

MikeP
Life time member
Life time member
First I'd try and pinch-up the banjo-bolt on the underside (the hose connection to the master cylinder). Clean-up the area and see if the leak persists.

However, as you say that the lever is stiff the most likely thing is that the seals in the piston are failing.

A repair kit isn't expensive. Best thing is to drain the fluid from the front entirely and then replace the piston and seals because the fluid will most likely be contaminated by the old seals. You can just draw the fluid out of the master cylinder with a syringe, have plenty of tissues handy to mop up what comes out when you strip the old piston out, then once the new one is in place, bleed the brakes but given that it's a safety issue, I'd go for the full fluid replacement.

    

3Back to top Go down   K1100 hand brake reservoir leak Empty Re: K1100 hand brake reservoir leak Mon May 06, 2013 7:09 am

DeRodster

DeRodster
Life time member
Life time member
Very good Mike,
I'll give it a go during the week.
Will have a good look first , but prety sure its the seals.

more anon

R


__________________________________________________
1992 K1100LT 6455194
1943 BSA WM20
1979 Yamaha DT-175
1974 Triumph 3TA / 5TA
1974 Honda 100
1969 Honda 50
    

4Back to top Go down   K1100 hand brake reservoir leak Empty Re: K1100 hand brake reservoir leak Tue Jul 30, 2013 2:47 am

zonenfeile

zonenfeile
Gold member
Gold member
DeRodster wrote:...., but prety sure its the seals.

more anon

R

 of course but:
problems with the hydraulic are a result of

- dirt
- age
- old brake fluid
- ignoration

the repair sets are ailable for the magura pumps
but often you only have a 50:50 chance that it works

i do not repair the pumps anymore
1x new pump incl all tubes new and your brakes will do it for ages

if you open/change the pump: be shure that when remounted
the pressure pin (pos 7) gets locide !!
i didn´t do that once - no fun at all

K1100 hand brake reservoir leak 136


__________________________________________________
ex K1100/2

K- Wiki - or rtfm first

Regards from Hamburg

Olaf
    

5Back to top Go down   K1100 hand brake reservoir leak Empty Re: K1100 hand brake reservoir leak Tue Jul 30, 2013 10:52 am

Two Wheels Better

Two Wheels Better
Moderator
Moderator
The 20mm master cylinder (16V K's and K1100) seal usually goes away because the outer boot perishes first which allows debris to wear the M/C's inner seal. Of course, age and/or a lack of regular maintenance (brake fluid flushes) can have an affect. They're an easy one to fix with a modicum of mechanical skill. Most of the R1100 Oilheads use the same part number master cylinder and kit.

This is the kit for that sort of cylinder: 32 72 2 332 037, about $87.00 at US dealerships, and the outer boot is part number 32 72 2 310 756 and costs about $8.00... They're numbers 20 and 8 in the above parts illustration.

The 'Bins boys sell the piston kit only, part No.23960, for £25.00 ex VAT and the boot, part No.23990, for £3.50 ex VAT.








__________________________________________________

1970 R60/5, '77 R75/7-R100, '85 K100'87 K75C, '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, #1 '06 K1200R, #2 '06 K1200R, '07 K1200R, '09 K1300GT, '13 R1200RT-P & 2022 S1000XR

"Do you ever read any of the books you burn?" "That's against the law!" "Oh, of course."
~Ray Bradbury, science-fiction writer (22 August 1920 - 2012)
    

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