I have been having a problem with my clutch over the last two years, going from not a problem at all, to gradually more of an issue. When I fully depress the clutch, the clutch does not entirely disengage, it will drag causing poor shifting. If at a dead stop, I can depress the clutch and when I put pressure on the shifter to go into first gear, there is a quite noticeable resistance, and the car will slowly start to move forward. Once I get it in gear, I don't notice the car wanting to roll forward that I recall. When I shift, again there is a quite noticeable resistance to go into gear, and it feels like I can feel it banging the driveline, even with the clutch depressed. I figured that it was from the clutch not fully disengaging, but not sure. My pedal get full firm pressure about 1" depressed. I get disengagement about 2" depressed. I probably have ~10" of total travel. I thought maybe I was over-traveling the pressure plate, so I tested to see if I'd have the same issue with the clutch depressed past the disengagement point, but not all the way to the floor. No change.
This seems to be getting progressively worse, could this be a synchro problem?
Let me give some details on my setup. I did not have this problem at first, so I don't think its a setup problem.
- 2004 GTO T56 transmission (tripple syncyro 1-2, Z06 ratios, etc)
- 2004 GTO LS1.
- MGW shifter for an F-body (swapped to the F-body offset lever to make this possible).
- Original GM clutch slave cylinder.
- Wilwood clutch master cylinder. I will have to check on the bore diameter, but for some reason I want to say 7/8" or 15/16", can't recall which offhand (it was 3+ years ago when I bought it).
- Spec Stage 3+ clutch disc and pressure plate.
- Fidanza aluminum flywheel.
- Motul RBF600 fluid in it, since my clutch reservoir is shared with my brake reservoir. I bleed my brakes and clutch several times ever year, and am 100% positive I don't have any air in my system.
