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perplexing.....leaking brake reservoir ??????

Started by jerryz, February 15, 2009, 06:38:05 AM

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jerryz

February 15, 2009, 06:38:05 AM
The brake reservoir on my S4 handlebar appears to be leaking,but I have replaced reservoir and hose and clips with new ones twice this week and it still leaks is there a faulty batch of the Brembo bits ?or am I missing something here....
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MONSTERMAN

ducpainter

#1
February 15, 2009, 06:41:17 AM
It isn't leaking where the fitting goes into the grommet on the master itself is it?
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


Howie

#2
February 15, 2009, 06:51:09 AM
Also, what are you using for hose?  Most hoses will sweat if not made for brake fluid.

jerryz

#3
February 15, 2009, 05:44:30 PM
Hose is same type as I use on the clutch and other bikes . The grommet into the Master is not leaking , I have changed both the hose and the reservoir twice so its getting a bit strange  ....?????

i examined the reservoirs and found some plastic casting sprue on the shaft so removed it with craft knife and emery paper just in case it prevented a good seal.

monsterman

Mash

#4
February 15, 2009, 05:53:53 PM
I hate to be Mr. Obvious, but if it's leaking from the cap, maybe you're overfilling it?
'06 S2R1000

DucHead

#5
February 15, 2009, 06:19:19 PM
Perhaps your tubing i.d. is too large? 
'05 S4R (>47k mi); '04 Bandit 1200 (>92k mi; sold); '02 Bandit 1200 (>11k mi); '97 Bandit 1200 (2k mi); '13 FJR1300 (1k mi); IBA #28454 "45"

jerryz

#6
February 16, 2009, 03:31:29 AM
Its definitely leaking from the top of the hose ,  its the correct size and grade and the 3rd plastic reservoir i have tried. I will go out and buy more hose tommorow , its not overfilled in fact i only half filled it .this is weird.

DucHead

#7
February 16, 2009, 04:05:08 AM
Sounds like you might need an actual hose clamp.

If you can't find the right hose, I'll mail you some Tygon 2075.
'05 S4R (>47k mi); '04 Bandit 1200 (>92k mi; sold); '02 Bandit 1200 (>11k mi); '97 Bandit 1200 (2k mi); '13 FJR1300 (1k mi); IBA #28454 "45"

jerryz

#8
February 17, 2009, 05:15:10 AM
It seems the new Brembo reservoir spigot is smaller than 1/4 inch size so hose is loose  ...But maybe i can use some plumbers tape to make up the difference .

ducpainter

#9
February 17, 2009, 05:19:08 AM
Quote from: jerryz on February 17, 2009, 05:15:10 AM
It seems the new Brembo reservoir spigot is smaller than 1/4 inch size so hose is loose  ...But maybe i can use some plumbers tape to make up the difference .
I don't think the tape will work.

I'd use a better clamp than the spring type.
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


DucHead

#10
February 17, 2009, 06:25:30 AM
Quote from: jerryz on February 17, 2009, 05:15:10 AM
It seems the new Brembo reservoir spigot is smaller than 1/4 inch size so hose is loose  ...But maybe i can use some plumbers tape to make up the difference .

I have Brembo MCs, and with the Tygon 2075, zip ties are sufficient.  If you want a piece of Tygon, PM me your address and I'll pop some in the mail.
'05 S4R (>47k mi); '04 Bandit 1200 (>92k mi; sold); '02 Bandit 1200 (>11k mi); '97 Bandit 1200 (2k mi); '13 FJR1300 (1k mi); IBA #28454 "45"
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