Os Giken Triple-plate With Nismo Slave & Custom Thrust

[wlspn]

Have just put a R33 box in my 32 with good secondhand OS Giken triple-plate & Nismo oversized slave. Also got a smaller diameter & smaller height thrust. Now the top half of the pedal feels like there is nothing there at all although it is moving slave slightly, next bit of pedal feels fairly normal & then just before you hit the floor pedal is really firm. The reason for the thrust was the diaphragm fingers on OS stuck out about 6mm further than previous clutch so went 6mm less height to compensate & you could see from marks on diaphragm it had been running a much smaller than stock thrust (Im assuming to help with pedal effort) so used what had been on it before. Any one had similar problems? Any help/info/advice appreciated.

[The Dan]

Have just put a R33 box in my 32 with good secondhand OS Giken triple-plate & Nismo oversized slave. Also got a smaller diameter & smaller height thrust. Now the top half of the pedal feels like there is nothing there at all although it is moving slave slightly, next bit of pedal feels fairly normal & then just before you hit the floor pedal is really firm. The reason for the thrust was the diaphragm fingers on OS stuck out about 6mm further than previous clutch so went 6mm less height to compensate & you could see from marks on diaphragm it had been running a much smaller than stock thrust (Im assuming to help with pedal effort) so used what had been on it before. Any one had similar problems? Any help/info/advice appreciated.

yeah you need to use the smaller diameter bearing for that very reason

[wlspn]

Yeah I am using the smaller diameter thrust. Am wondering if that along with the Nismo slave is giving me this strange pedal feel? Maybe only needed to go one or the other? Have driven a mates GTR with multi-plate clutch & the pedal was ridiculously heavy so thought I would need all the help I can get. Now it really seems too soft at top of pedal, getting firmer in stages as pedal is pushed in...

[bradsm87]

Yeah I am using the smaller diameter thrust. Am wondering if that along with the Nismo slave is giving me this strange pedal feel? Maybe only needed to go one or the other? Have driven a mates GTR with multi-plate clutch & the pedal was ridiculously heavy so thought I would need all the help I can get. Now it really seems too soft at top of pedal, getting firmer in stages as pedal is pushed in...

Put the stock slave back in and bleed it well and it should do the trick. Most triple plates etc. already have modified pivot points for easier operation but they need the full travel of the stock slave.