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1Back to top Go down   Rear master cylinder replacements. Empty Rear master cylinder replacements. Tue May 23, 2023 12:56 am

MartinW

MartinW
Life time member
Life time member
I've managed to source some better rear master cylinder boots for the Chinese  master cylinders. The cylinders require a groove machining for the boots lip to seat in. I'm still looking for a source of nut and bolt hose clips of the correct size, alternatively you can fit jubilee clips. The push rod also  requires modifying which I can do for you or you can DIY. The cylinders come with a smaller reservoir and you'll need to get a piece of supply hose as the supplied hose will disintegrate after a short time. I have three with boots  done in stock should any K Kronies require a replacement.
Regards Martin.
Rear master cylinder replacements. Master14
Rear master cylinder replacements. Master15
Rear master cylinder replacements. Master16


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1992 K75s
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I use a zip tie to hold the boot in place.  Works pretty well.  It's been a while since I have had to fuss with the master cylinder, but I seem to recall that I used the boot from the old master cylinder.  It worked well for me.


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Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

MartinW

MartinW
Life time member
Life time member
Gryph most of the time the OEM boot is toast hence the need for a replacement boot. We tried cable ties on Matts cylinder and they kept either popping the boot off or sliding off. Now with the machined groove it would probably stay on with nothing holding it on.
Regards Martin.


__________________________________________________
1992 K75s
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Hmmm...  I wonder why my boot never came off?  I need to go back and see what I did. 

Unfortunately, the first bike I did the swap on just left on a trailer for Texas last Wednesday.  Hope I still have the photos I took.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

firstle

firstle
Life time member
Life time member
look at the hond gold wing gl1100 1980/83 rear master  , its adjustable and appers to be useable , may be better quality .

    

MartinW

MartinW
Life time member
Life time member
Firstle mine has been on since March 2017 without any problems and actually works better and has a better feel than the OEM one. For the price of $15.00 Au I'll be sticking with them. So far nobody has encountered any problems other than the reservoir hose being substandard.
Regards Martin.


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1992 K75s
    

7Back to top Go down   Rear master cylinder replacements. Empty Re: Rear master cylinder replacements. Tue May 23, 2023 12:16 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
MartinW wrote:Firstle mine has been on since March 2017 without any problems and actually works better and has a better feel than the OEM one. For the price of $15.00 Au I'll be sticking with them. So far nobody has encountered any problems other than the reservoir hose being substandard.
Regards Martin.
+1  I have installed several of these $15 master cylinders and they are all still in use, working better than the OEM unit they replaced.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

Bräk

Bräk
active member
active member
Gryph,

I'm going to retrieve the bike tomorrow night. Will check to see what you did and report back.

    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Bräk wrote:Gryph,

I'm going to retrieve the bike tomorrow night. Will check to see what you did and report back.
Hope you like it.

BTW fellow inmates, Brak is the new owner of Ilsa, She Wolf of the SS(Super Slab).  She got to be a bit much for this old fart to handle and he offered to give her a good home. 

She always did well by me and she should do the same for him as I'm sure he'll show her the TLC she needs.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

10Back to top Go down   Rear master cylinder replacements. Empty Re: Rear master cylinder replacements. Fri Jun 02, 2023 5:35 pm

Bräk

Bräk
active member
active member
Sorry for the delay. Work got a little wild on me. Does this help at all? Let me know if we need to go deeper in and up the tubing.


Rear master cylinder replacements. Resized_20230527_113620
Rear master cylinder replacements. Resized_20230527_113635
The bike is magnificent! So smooth and comfy.

Need to get used to the fairings in front of my legs and the added 200lbs vs what I'm used to.  I'll make a separate post to show off some pictures @Point-Seven-fine is the man!



Last edited by Bräk on Thu Jun 08, 2023 3:06 am; edited 1 time in total (Reason for editing : Added pictures)

    

11Back to top Go down   Rear master cylinder replacements. Empty Re: Rear master cylinder replacements. Thu Jun 08, 2023 3:10 am

Bräk

Bräk
active member
active member
Big oof on my part for trying to send that from my phone on the plane. My apologies. Added the pictures above.

Would've checked sooner, but was stuck out at a cabin in the woods of Minnesota Rear master cylinder replacements. 1f632

    

12Back to top Go down   Rear master cylinder replacements. Empty Re: Rear master cylinder replacements. Thu Jun 08, 2023 12:11 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
OMG!  That ChiCom banjo bolt is a piece of rusty crap!  Can't believe I never saw it.


__________________________________________________
Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

13Back to top Go down   Rear master cylinder replacements. Empty Re: Rear master cylinder replacements. Thu Jun 08, 2023 12:24 pm

Dai

Dai
Life time member
Life time member
Look again - I don't think it's as bad as you take it to be. AFAICS, the rust at the rear of the m/c itself are deposits from the banjo bolt and the dowty washers. Other places have just collected deposits from miscellanous steel parts on other bits of the bike.

Unless, of course, the m/c really is steel and not the ally I'm assuming it is.


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1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
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1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
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