Jersey Posted April 20, 2011 Share Posted April 20, 2011 Hey all. Hope all's been well with everyone. Does anyone know if there's a difference in the OUTside diameter of the throwout bearings between the 240's & ZXT's? The clutch in my 240 is a bear and i've done just about everything i could to make it a little softer without much luck. Now i'm thinking that maybe i've been running a 240 throwout bearing against my '82 ZXT ACT HD pressure plate and the larger OUTside diameter 240 bearing is not pushing on the "finger tips" of the ZXT PP, causing much less leverage. I was just browsing through some pics of my Z build from way back when and came across a few pics i have of the 2 different PP's (Pic referenced attached) It seems the inside diameter between the fingers on the ZXT PP is smaller than the 240 PP but of course, i didn't take any pics of the different TOB's. Damn. Anyways, thanks in advance. - Jersey Quote Link to comment Share on other sites More sharing options...
ezzzzzzz Posted April 21, 2011 Share Posted April 21, 2011 I'm thinking you've got the wrong throw out bearing installed (height wise) The 240Z bearing is shorter as I recall because the PP is taller. If you've got that TO bearing mated to a shorter PP then you've already lost a lot of leverage accounting for the heavier pedal feel. Quote Link to comment Share on other sites More sharing options...
Nigel Posted April 22, 2011 Share Posted April 22, 2011 I'm thinking you've got the wrong throw out bearing installed (height wise) The 240Z bearing is shorter as I recall because the PP is taller. If you've got that TO bearing mated to a shorter PP then you've already lost a lot of leverage accounting for the heavier pedal feel. The bearings are all the same, it's the collars that have different heights: http://www.zparts.co...ear_specs1.html Nigel Quote Link to comment Share on other sites More sharing options...
ezzzzzzz Posted April 22, 2011 Share Posted April 22, 2011 I was speaking as a whole, not components. The idea is the same though. If he's using a shorter 'collar' then the clutch fork is extended over the fulcrum point by approximately 10mm which would be perceived as a heavier pedal feel. Quote Link to comment Share on other sites More sharing options...
Jersey Posted April 22, 2011 Author Share Posted April 22, 2011 (edited) Thanks for the feedback guys. I guess i was just hoping there was a difference in TOB diameter which would be the cause. EZZZZZZZZ, I am positive that i used the longer collar (pic attached, used the 2+2 collar)Thanks for the thought though. Maybe someone will chime in with the same setup as i have - 240mm setup using the ACT Heavy Duty PP & Clutch - just to let me know how stiff their clutch pedal is. Again, thanks. Edited April 22, 2011 by Jersey Quote Link to comment Share on other sites More sharing options...
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