There are new instructions included with every slave, He needs a new master cylinder or it needs bled correctly.
You have to pump the pedal with the bleeder open to shove the air down the bottom, After this let it gravity bleed and your done. Very simple really.
If they try to use their "Pump' It will never get the air out, Pump bleeding also will not get the air out, You must pump the pedal with the
bleeder open, This gets the air out of the top area of the system and down to the slave, Once the air is in the slave it will gravity bleed the rest out.
It literally takes 5 minutes to do if you follow these instructions. If it doesn't work correctly after this the master cylinder is weak and needs replaced
Instruction included with slave...
Inspect slave before installation to check for any possible damage in shipping!
A new Clutch master cylinder is recommended with this kit
Remove Old Slave and Line Assy all the way to frame rail connection.
Flush old fluid from master cylinder and hard lines, Clean reservoir of any debris.
Install Z-Speed heavy duty slave cylinder to transmission
Route line through rubber boot of bell housing, Reinstall transmission
Attach SS line to frame rail connection
Check install height!
see website product page at
ZSpeed Performance Nissan Infiniti Specialist 240SX 300ZX 350Z G35 G37 370Z, after trans is pushed up flush with engine block. After trans install is complete loosen slave cylinder bleed screw in short SS line.
Fill Reservoir with fresh Dot 3 or Dot 4 or dot 5.1 (DOT 3-4 compatible) brake fluid. With bleeder open at slave line, Pump pedal slowly, pausing at the top for a second or 2, 10-15 times making sure pedal is pulled completely up on each stroke by hand to distribute fluid through system making sure to keep reservoir full.
Allow system to Gravity bleed for approx 5 minutes keeping reservoir full
Close bleeder valve.
Pump pedal 15-20 times, while holding pedal on floor open bleeder one time. Close bleeder and pump pedal until you get a full returning pedal, It is normal for the pedal to stick the first few times.
If clutch pedal will not return fully master cylinder may be weak and in need of replacement.
Any questions or problems feel free to contact us at 937-665-0450 or 937-689-0905
Sales@ZspeedPerformance.com