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Bleeding Hs33 With Diesel


Czar-rider

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only reportedly does a small amount of easily rectifiable damage to said hydraulic brake

Not necessarily true. I belive that while it is very easy to replace the o-rings in the lever, the seals in the slave cylinders cannot be replaced so easily (correct me if I'm wrong). When my brake's seals finally went I replaced the o-rings in the lever, but I was still leaking water from the slaves.

That said, this only happened after three years so I am happy with that kind of life from my brakes.

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Ive had a water bleed for the last 3-4 years, admittedly the bikes not been ridden for the last 2 years :$

Never had any problems or leaks with it and the lever feel is waay better :)

I did lube the outside of the pistons occasionally (drop alittle oil in there) when they looked dry. The seals are still intact, it doesnt bother me if they fail as I have 4 spare slave cylinders floating about somewhere :D

One problem with the water bleed is that the olive has rusted into the slave so I cant get it off the end of the hose - no major hassle really though. I suspect if you keep it properly bled with water and/or strip it every 6 months to clean it then this wouldnt happen - because my bleed failed a little while ago its had air sitting in the system, this has probably caused the olive it to corrode.

Either way water works :)

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Why are you trying to preach that water is the satans Juice of Maguras?

Is this your 1st Job in a bike shop and have been reading the instruction Manuals, so now quoting them on here is going to make you seem like a true expert?

Maguras are made of Aluminium, most of the seals are plastic, the others ae rubber.

Water does not damage any of those materials.

My Magura has had water in it for 4 years, its run perfectly for that time, and Ive known maguras to run for linger with it in.

Water has the added bonus':

Its thin and not compressable, meaing a fast reponcive brake with minamal flex

Its not a contaminant, meaning if you do splt a hose and it spills on your rims and pads you wont spend hours getting it off, and wont have to bin your pads.

Its Free

Diesel WILL NOT rot maguras. Car fuel lines dont perish from Diesel fuel, they perish from constant heat changes, Engine oil contaminaltion, age and weathering. Bikes dont suffer from these things. However, Bio-Diesel will rot the seals, and will cause damage, as that isnt as safe to use as regular, and is still in the Experimental stages of testing as a suitable seal material hasnt been found.

There is no reason Diesel wont work, just make sure it doesnt come into contact with any braking surfaces, becasue it wont be easy to get off.

As said before, Diesel ISNT flamable. It is combustable, but unless your reaching approx 100 Bar pf pressure on your brake your going to be ok.

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  • 2 months later...

Royal blood because it offers better performance than water, really, and its the recommended fluid for the brakes. I think using water would void the warranty, so a pro isn't going to do that.

Other than that, this is a hell of a bump.

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i wonder what the world pro's use on there back brakes as most use them on the back ( vincent hermance) water or magura royal blood. i bet its magura royal blood because that will be standard with there bikes lol

Nick

Guessing you've never actually seen vince's boxx then?

It's FAR from standard!!

Matt

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On another note just to correct a previous statement somewhere in the privious

posts, and I cannot remember what the point was.

Water is more dense than oil, that is why oil floats on water. I think what the post

was refering to was the viscosity of the fluids, water is less viscous so has a better

response as there is less resistance in the system.

Water is incompressibe (almost)

I just wanted to correct the previous terminology, not flame anybody

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I dont know why 10000's of people on this forum bleed there brakes with the wrong correct stuff. For example bleeding a hs33 with water? How stupid is that may be easy and cheap for you lazy people but in the end it stretches the seals inside Basically all the internals will be ruined.

I work in a local bikeshop i have kids who bring there xc bikes in for brakes to be bleeded they bleed hope mono minis and hayes nines with mineral oil which is the hassel of draining the fluid out cleaning it then fit new and then bleed it.

I dont know whats wrong with using the original stuff besides your brake is mostly likely to freeze in cold weather if its bleeded with water.

HA

i ran the same maggie for 3 year with water in

still fine to this day

oil feels wank

your pads dont return quick enough

water is better

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Diesel is sooo hard to burn it's stupid. Doubt you'd get it burning with a lighter.

Diesel rots seals aswell. I just had to replace some hosing on my van because it had perished, it just gets broken down by diesel.

So really, its a crap idea.

yeah it only burns when it is really hot, or compressed. just use water with a hint of anti-freeze

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i wonder what the world pro's use on there back brakes as most use them on the back ( vincent hermance) water or magura royal blood. i bet its magura royal blood because that will be standard with there bikes lol

Nick

Why bump an old topic?

Spose this is NMC though! lol

Edited by spookylukey
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Once you've bled it with water, you NEVER go back. It's so much more responsive and smooth.

I'd like to see you bleed your brakes with water, and Reece. :P

To be honest, I've got my original bleed in my Magura, if its not broken why fix it?

No doubt I'll try water when my original bleed's time comes.

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Royal blood because it offers better performance than water, really, and its the recommended fluid for the brakes. I think using water would void the warranty, so a pro isn't going to do that.

Other than that, this is a hell of a bump.

No, it doesn't. Thye both provide the same amount of hold, only water is lighter so faster to respond. Technically, magura oil gives slightly LESS performance, because you have to take into account the speed of operation of the brake when you pull the lever. Water feels nicer too.

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  • 2 months later...
yes i was told that they could be bled with diesel..apparently its because it lubricates the pistons but water doesnt..i may be wrong but this is what i was told.

It might lubricate the pistons, but it will also corrode the seals. So, lubricated pistons and no seals, or fully working brake? Your choice.

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