View Single Post
Old 11-22-2017, 10:35 AM   #702
Qc86
Senior Member
 
Join Date: Jan 2017
Drives: 2017 Toyota 86 M6
Location: Rouyn-Noranda, Quebec, Canada
Posts: 103
Thanks: 21
Thanked 20 Times in 16 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by BigJimID View Post
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.

I dont think my clutch will due soon its a 2017 86 with only 15k km and ive done over 170k km on a stock clutch on another car, beating the shit out of it. So i dont think the problem is me however ive talk to a lot of people and it seems like the newest toyota/subaru have a higher grab point. Ive tried the new corolla and new wrx and the grab point is at the same place as the 86, kinda high.
Qc86 is offline   Reply With Quote