Diy Disc Bleeding

Postby Chris_L on Wed 25/Jan/06 10:23am

Right now i need to rebleed my rear disc brake.
Which is a Deore M555 system.
ive read the manual for bleeding the brakes and that.
and it looks simple enough.

So my question, do i need to buy a bleeding kit of some sort?
according to the manual you only need a plastic bag and a couple of allen keys.

Another Q , i will be replacing the front hose, would i still need a bleeding kit?

(the price of having to fix your brakes at the LBS is shocking, thought id try to do it at home)

(i do realise i will need to buy mineral oil)

thanks too all
Chris_L
Member for: 14 years 4 months

Postby james on Wed 25/Jan/06 10:27am

buy some latex gloves to wear.... otherwise good luck
james
Member for: 15 years 6 months

Re: Diy Disc Bleeding

Postby Stun on Wed 25/Jan/06 10:29am

Chris_L wrote:Right now i need to rebleed my rear disc brake.
Which is a Deore M555 system.
ive read the manual for bleeding the brakes and that.
and it looks simple enough.

So my question, do i need to buy a bleeding kit of some sort?
according to the manual you only need a plastic bag and a couple of allen keys.

Another Q , i will be replacing the front hose, would i still need a bleeding kit?

(the price of having to fix your brakes at the LBS is shocking, thought id try to do it at home)

(i do realise i will need to buy mineral oil)

thanks too all


A syringe does make things easier.
Plus a length of hose to go from the caliper to the plastic bag.
Some isapropyl alcahol will help too (to clean everything afterwards).
Stun
Member for: 16 years 7 months

Postby squished_cat on Wed 25/Jan/06 10:29am

If the deores are anything like the old 4pot XTs then you will need a bit of tube to go from the bleed nipple to a bag/bottle or whatever you use to collect the old mineral oil. A syringe would be handy for squirting the mineral oil into the resivoir too, or something with a narrow nozzle you can control the flow of easily.

You won't need gloves as it's mineral oil, not brake fluid?
squished_cat
Member for: 14 years 8 months

Postby james on Wed 25/Jan/06 10:34am

squished_cat wrote:You won't need gloves as it's mineral oil, not brake fluid?


It's still messy :sly:
james
Member for: 15 years 6 months

Postby phunk on Wed 25/Jan/06 10:35am

And patience and taking your time also really helps.

Singer sewing oil (for sewing machines) is a cheap alternative that is the same as the stuff used for Coda disk brakes (I assume it would be the similar for Shimano...)
phunk
User avatar
Member for: 15 years 5 months

Postby Stun on Wed 25/Jan/06 10:38am

phunk wrote:And patience and taking your time also really helps.

Singer sewing oil (for sewing machines) is a cheap alternative that is the same as the stuff used for Coda disk brakes (I assume it would be the similar for Shimano...)


Just a note.
If you attempt to warranty a Shimano brake without Shimano Mineral oil in it, you won't get anywhere.
There oil is red and available quite easily. :thumbsup:
Stun
Member for: 16 years 7 months

Postby Gt_Dhi on Wed 25/Jan/06 10:40am

Damn when i bleed my brakes it took about three of us tp do it.
Gt_Dhi
Member for: 13 years 8 months

Postby squished_cat on Wed 25/Jan/06 10:42am

Gt_Dhi wrote:Damn when i bleed my brakes it took about three of us tp do it.


:lol: Where they Hayes?
squished_cat
Member for: 14 years 8 months

Postby Slim on Wed 25/Jan/06 10:44am

phunk wrote:And patience and taking your time also really helps.

Singer sewing oil (for sewing machines) is a cheap alternative that is the same as the stuff used for Coda disk brakes (I assume it would be the similar for Shimano...)



Automatic transmission fluid is a better alternative ;)
Slim
Member for: 16 years 0 months

Postby radical_edward on Wed 25/Jan/06 11:09am

The lowdown on shimano mineral oil alternatives here.

The best alternative seems to be a mineral hydraulic oil used in european cars and available in NZ through their service agents. So this may or may not be a cheaper option
:eh:
radical_edward
User avatar
"Fast-casual."
Member for: 15 years 5 months

Postby ape on Wed 25/Jan/06 11:12am

isn't auto fluid a little more like the dot stuff used in brakes?., rather than mineral oil.., which is more closely related to engine oil.., (I could be wrong about this.)
ape
Member for: 15 years 1 month

Postby CaptainCaveman on Wed 25/Jan/06 11:15am

ape wrote:isn't auto fluid a little more like the dot stuff used in brakes?., rather than mineral oil.., which is more closely related to engine oil.., (I could be wrong about this.)


Yes - and be careful because a lot of them contain 'seal swelling' agents that can eat seals not designed to be used with them. Go buy the proper stuff and avoid any potential problems. And yes, be patient.
CaptainCaveman
Member for: 15 years 2 months

Postby ralf007 on Wed 25/Jan/06 11:20am

phunk wrote:Singer sewing oil (for sewing machines) is a cheap alternative


my work has shit loads of this, may just have to borrow a bottle :paranoid: i new working there would come in handy one day
ralf007
Member for: 14 years 9 months

Postby james on Wed 25/Jan/06 11:22am

radical_edward wrote:The lowdown on shimano mineral oil alternatives here.


Most importantly.....

DO NOT USE MINERAL OIL FROM THE DRUGSTORE!!!! What you are buying at the drugstore is a laxative....

witless grom said rather than wrote:My breaks shit demsefs, wat can I do???? WTF
james
Member for: 15 years 6 months

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