Clutch Hydraulic Problems

[bobinyelm]

Originally Posted by jhv48

Bob, don't sample the fluid from the M/C end. Open the bleeder valve on the slave and let it slowly drip into a glass bottle. Then check the color. That is where the heat will get to the fluid the fastest. You won't need to bleed the system if the bleeder is on the top of the slave and the master is higher than the slave. Gravity will cause it to flow without any air entering the system.

And, yes, Wilwood fluid will boil at 570 degrees dry where normal DOT 4 fluid can boil at 446 degrees dry. Big difference.

Man, if the fluid boils and is destroyed after 10 miles and a total of 30 minutes engine run-time, it would see, that there are more design problems present than
switching to a new fluid type will cure.
Reaching over 446 degrees where fluids are present is pretty shocking, not to mention the brake master cylinder parts and fluid!
Do people suffer brake failure frequently as well, or is that why DOT 5 silicone fluid is used for the brakes?