agarcia wrote:when im on the track after a day of hard driveing my clutch peddle is sluggish and not verry responsive. if its not fluid over heat then what do u guys think it is? can u tell me more about this rubber line located in the system?
I don't see what year your 350 is, but on an 03, look under the car on the driver's side and you'll see the operating cylinder mounted to the bellhousing. The line connected to it has a silver reflective covering on it and goes from the operating cylinder to the hard line from the master. When these lines get old and tired, they flex, (or balloon(?) outwards instead of pushing the full pressure through to the slave. Does that make sense?
(The reason I asked about the year is that the newer ones have a hydraulic throwout bearing and not a clutch slave, etc. I don't know what the flex line system looks like on the newer models.)
That silver covering is to protect it from the heat, but I've had two of them fail, one on a 97 Pathfinder and another on a 03 350Z. The exhaust does cook that line and it can get...spongy. When I removed the one on the 03 I gently bent it into a "U" shape and the silver heat shield and the outer flex shield split in two. I bet some aftermarket company makes a braided stainless line which would help, but I'd still wrap a heatshield on that one too.
On both apps, they were bone stock at the time. You haven't lived until that line bursts while you're in a hell storm with three kids in carseats and the truck starts moving while your foot is still holding the clutch in.
Modified by HeavyDuty at 12:58 PM 7/27/2009