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Brake fluid hose
bassett - 4/3/10 at 01:19 PM

Hi, firstly is this the correct place for braking needs? i think one of my hoses that joins the resevoir to the master cylinder is leaking as if i touch the hose it leaves my hand slightly greasy like brake fluid although nothing drips. The hose has a proper clip on it to seal aroung the reseviour barb outlet and the same on the end that joins the flared copper pipe that meets the cylinder. I am sure the hose im using is the correct stuff (rubber hose with fabric braiding) from merlin motorsport but i would have expected it to last longer than 8months. What is permanent solution for this if i need to replace it after some more checks?
Thanks
Adam

[Edited on 4/3/10 by bassett]


cd.thomson - 4/3/10 at 01:22 PM

there was a thread about this recently. Are you using fully synthetic brake fluid (DOT 4)? As this is what the fabric covered hose is designed for.


r1_pete - 4/3/10 at 01:58 PM

I just bought some of THIS from CBS, comes with an IVA cert stating it is for brake fluid...


cd.thomson - 4/3/10 at 02:00 PM

again, only for fully synthetic brake fluids


bassett - 4/3/10 at 02:06 PM

Currently using some cheapo dot4 and thinking about going for some fresh super dot4/5.1


jimgiblett - 4/3/10 at 05:01 PM

Shouldn't be anything wrong when basic DoT4 unless you are generating hooge amounts of heat and then you'll need something like AP600 (DoT 5.1). I would be very impressed if you can generate these sorts of temps in a lightweight car.

- Jim


[Edited on 4/3/10 by jimgiblett]


r1_pete - 4/3/10 at 05:17 PM

quote:
Originally posted by cd.thomson
again, only for fully synthetic brake fluids


CBS' description says ALL types of brake fluid......


bassett - 4/3/10 at 10:51 PM

il check it over this weekend as maybe its just from the initial bleed when it all got a bit messy or something worse like a sharp edge on one of the flared pipes from the cylinder. The brakes have had an easy life so far and even when it does get on the track i doubt we would be able to get it hot as we'd be too scared of pranging it