Hey what's up guys. I just recently replaced my cltuch and flywheel. Everything went smooth. The guys who did the install were great. I got a stainless braided line and installed it. Well the clutch feels great during short but when I drive more than 30miles on the expressway, the clutch pedal looses firmness. Once it cools off it goes back to normal. We went ahead a wrapped the line with a heat shield type product and still the same thing. The clutch engauges fine in the gears.

 

I'm an idiot

 

Might be air in your clutch lines. You might try bleeding your clutch fluid to get any trapped air out of the system.

 

it wierd though cause it only happens when i been drivin for a while

 

When you heat up your engine though, your clutch fluid also heats up... its boiling point remains the same however. This means that the hotter it gets, the higher the pressure gets.

It's pretty common to roast up ones clutch, and then push some air pockets through the lines when it cools down from all the pressure changes.

try bleeding the master cylinder.