Genuine Mazda MX-5 Miata Clutch Disc

Mazda MX-5 Miata Clutch Disc Parts and Q&A

• Disc
  LF04-16-460B
  Q: What are the key components and functions of a clutch disc in a manual transmission system on Mazda MX-5 Miata?

  A:

  Every vehicle that has a manual transmission has one dry plate, one diaphragm spring type clutch, and a splined hub clutch disc that slides along the transmission input shaft. The diaphragm of the pressure plate is in contact with the clutch and pressure plate by the spring pressure of the diaphragm. The hydraulic release system that controls the clutch comprises of the following elements; the clutch pedal, master cylinder, fluid reservoir, hydraulic line, slave cylinder, and the Clutch Release Bearing. Upon pressing of the clutch pedal, hydraulic pressure is exerted on the clutch release lever which pivots and presses against the release bearing and disengages the clutch plate. The terminology may differ with components having various names, such as the driven plate being called the plate of disc as well as the pressure plate assembly being called the clutch cover. Before making a diagnosis of a clutch system failure, a preliminary check should be carried out and this begins with the level of fluid in the clutch brake reservoir. In case of low, fluid is to be added and the hydraulic system checked on leakage. Checking clutch spin down time is done by turning on the engine while in Neutral with the transmission and then without turning on the clutch the next step will be to shift to Reverse without any grinding sound, which may be a sign of any problem with the pressure plate or clutch disc. To fully release the clutch, the engine must be running, with the parking brake on, and the shift made between 1st and Reverse; in case the shift is not easy, it might indicate some component malfunction. The distance that the release cylinder push rod travels must be checked, and should move a great distance when the clutch pedal is completely released. Also, the visual inspection also must include checking the clutch pedal bushing as being stuck or excessively worn, and the clutch release lever should also be ensured as firmly attached on the ball stud.