Quote:
Originally Posted by Qc86
Ive read a lot of page on the tread but couldnt answer my question. I remove the spring when i got my 86 and the pedal felt a lot better. Today i did the clutch grab adjustement because i was feeling like it was grabbing when the pedal was almost all the way up. I adjust the pedal to be a bit under the brake as i read on the forum, but i feel like the pedal is only lower and the grab point is at the same place(when clutch almost all the way up). Is there anything i can do to make the grab point lower without making the pedal lower? I feel like its something to do woth the master cylinder.
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I'm new to the FR-S as of two week ago, so someone can correct me if I'm mistaken here, but these clutch systems appear to be exactly the same as my 97 GST (Pedal, master, line, slave, fork). Adjusting the distance of the master push rod shown here doesn't affect clutch engagement, it adjusts the play of the pedal. Your clutch catches at the same point because of the wear on the clutch disk itself. As it wears that point will change over time. So you won't get rid of that. I'm too new to these systems to know where the stock engagement point should be. My gut tells me your very high engagement means you may be looking at a new clutch soon.
Anyways, the extra play at the top of the clutch pedal is actually a good thing. Taking the "free play" out of it by tightening the master push rod is actually putting more pressure on the clutch line (similar to as if you were pushing down the pedal). What this does is then pushes the fluid through the line to the slave cylinder and increases pressure the tighter you make it. This causes the slave push rod to put constant pressure on the fork. The fork (as we know) is what holds and engages the throwout bearing. By putting more pressure in the system, you are forcing the throwout bearing against the clutch pressure plate more and more. This will lead to more wear on both the throwout bearing AND the teeth of the clutch pressure plate. My suggestion would be to not mess with it unless you've replaced something in the clutch system and it needs adjustment.
Hope this helps
I did learn that the reason this darn FR-S clutch pedal is hard to use is because there's a spring somewhere down there. That'll be coming out within the week for sure.