Brake fluid

Installing braided lines as part of the clean up after dropping it. Anyone
have a preferred dot 4 fluid, or are they all much of a muchness?
Cheers,
Andrew

 

Motul DOT5.1 is kinda groovy 'cause it's almost colourless when new, and it's a silicone based fluid. mmmm.

Cam
'00 ZX6R

 

Heard some odd things about dot 5... I'm guessing you've used it, is there
any noticable advantage/disadvantage to the stuff?

I'm aware that mixing the stuff with 3/4 is a bad idea.

 

dot 4 is fine i use silkolene semi synthetic

isnt dot 5 only really supposed to be used for racing applications ?????

something about takes to long to get hot or too hydroscopic or something

 

"John Littler" wrote

Dot 5 can cause swelling of master and slave cylinder seals. If you
use it in a '70's or '80's Guzzi both your master cylinders will
suffer from seal swell and wont return all the way. It also caused
problems with rotting seals in Toyota Corona clutch slave cylinders.

I didn't try it in my current Guzzi.

Theo

 

"CoRkS" wrote

something

Dot 5 is not hygroscopic and that is a good thing. It can operate at
higher temperatures and that is a good thing. It doesn't attack your
paintwork and that is also a good thing.

Eating your seals is a very very bad thing. (That's the fluid eating
the seals corks, not you. You shouldn't eat seals either).

Theo
A hydroscope is an instrument for observing things underwater. Seals
maybe?

 

Don't blow seals, either, corks

 

It's ok... He just hunts them for sport.. not food.

Nev..
'02 CBR1100XX #2

 

Yup, I've used the DOT5 fluid with great results. Used it in my ZX6R's etc. Bled out the old, and in with the
new. I think the silicone based fluids are a little less prone to taking on water etc, and may even offer a
bit less friction. Definately no bad points that I've come across so far anyway. I was just looking for some
gucci fluid and this seemed to take the cake. As far as a comparison, there's probably not *that* much
difference, but maybe in high temp apps or something is where the DOT5 comes into it's own? It's advertised as
more of a racing fluid, so you'de think there's something about it that makes it *the shit*.

Cam
'00 ZX6R

 

Brake Fluids
----------------------------------------------------------------------
----------
Thanks to Dave Zeckhausen :
Lets look at what the DOT ratings mean. The table below shows the
MINIMUM wet and dry boiling points for DOT 2, 3, 4, and 5 brake fluid
in degrees Fahrenheit.
DOT 2 DOT 3 DOT 4 DOT 5
Dry Boiling point 374 401 446 500
Wet boiling point 284 311 356


The DOT 2 spec is for drum brakes and is obsolete. If you have any
DOT 2 in your garage, throw it away! DOT 5 is for silicone brake
fluid. Silicone brake fluid (DOT 5) should be avoided because it is
not compatible with regular brake fluid, it is hard to pour without
introducing bubbles and thus results in soft pedal feel, and moisture
still gets into your system and will pool in low areas like your
callipers and encourage rapid corrosion. STAY AWAY!

That leaves DOT 3 and DOT 4 fluids. These fluids are compatible with
each other and may be interchanged or mixed with no ill effects.
from
http://www.shotimes.com/SHO3brakefluid.html

 

wot if i wuz a eskimo, wood it be ok to eat seals then

 

its okay just as long as you eat them ;-)

 

"CoRkS" wrote

I think it was an Eskimo working for NASA that caused the shuttle problem.

Theo

 

Using your Inuition?...

Doug Cox.
Work to ride, Ride to work...

 

[applause]
Clem

 

"Doug Cox" wrote

Wow! Well done! (for a young bloke).

Theo