Genuine Mazda RX-7 Clutch Disc

Mazda RX-7 Clutch Disc Parts and Q&A

• Disc
  N310-16-460B-9U
  Q: How to properly install a clutch disc and pressure plate on a flywheel on Mazda RX-7?

  A:

  Identify the position of the mark and two holes that will be reamed on the flywheel surface. Install clutch disc and pressure plate by orienting the indication hole with the two shanked bolts, and insert them to ensure that the pressure plate is correctly installed to the flywheel by snapping all the bolts. Clamp the disc of the clutch with a centering tool or a spare input shaft of the transmission making sure that it fits correctly to install the transmission. Ensure that the disc of the clutch fits in with the greater boss and the retaining plate facing off the flywheel. Tighten all cover bolts gradually in a diagonal manner until the correct torque, that is 13 to 20 ft-lb (1.8 to 2.7 m-kg) is reached.
• Disc
  N315-16-460D
  Q: What should be examined and checked in the clutch disc to ensure proper function and identify the need for replacement on Mazda RX-7?

  A:

  Inspect the surface which the pressure plate is in contact with the clutch disc (is it smooth, free of scoring, gouging or warping) and inspect the pressure plate cover and fingers; any defects in the pressure plate assembly will require replacement as a complete assembly. Check the lining wear of the clutch disc (at least 0.012 in (0.3 mm) of lining must be available above the rivet heads); and loose or broken rivets or springs should be checked; suspect there is question of the quality of the clutch disc, change it. Check the flywheel surface, is there a groove of rivets, burnt, or scored, slight damage can be repaired in a lathe, severe damage must be replaced, and the teeth of the ring gear must be in good condition. Verify the release fork is not cracked or bent, verify the release bearing freely and silently turns, is pre-lubricated and must not be washed in solvents and a new release bearing must be used each time a new clutch is installed. In case of finding oil on the clutch parts determine the source and remove it because oil on the center of the flywheel means that the rear oil seal of the eccentric shaft is faulty whereas oil on the back of the clutch gears could be an indication that the transmission input shaft seal needs replacement.