About 3 years ago before my D16z6 blew up I bought an ACT HDSS for my EH. At first the Pressure Plate felt too stiff compared to the stock Pressure Plate. But after getting used to the effort needed, I grew to love the feedback. Then after the D16 blew, I swapped in a B18c1, the stock clutch felt as stiff, if not stiffer, as my ORGIGINAL D16 pressure plate. But once I replaced the stock B18c1 clutch with an Exedy the clutch pedal felt mushy. I never bothered to look into it, and assumed that it was due to improper bleeding of the clutch line.
After 45k on the Exedy, GLAZED, I went back to the clutch I grew to love, ACT HDSS, which I had just installed this past weekend. With everything in tact and BLEEDING THE CLUTCH WITH THE CAR ON (which I didn’t do for the Exedy install) the PEDAL CONTINUED TO FEEL MUSHY. Why doesn’t the B18C1 ACT HD Pressure Plate feel as stiff as the HD Pressure Plate for my old D16Z6? So goes the process of elimination:

1) Could it be due to improper bleeding?
2) Is either my clutch slave or master cylinder f’d?
3) Or did ACT change the manufacturing of the HD Pressure Plate since 3 years ago?

 

Sounds the the clutch wasn't primed correctly.

1. Add brake fluid
2. Pump clutch like ****
3. Hold clutch in
4. Open bleed valve
5. Bleed
6. Tighten valve when bubbles stop coming out
7. Repeat process.

Need 2 ppl to do the process. Is this the way you did it?

 

yea, just like that, only we had the car on to assist w/ the vacuum pump enabled.

 

any ideas?