What does Tech A recommend doing when replacing a clutch disc?

When replacing a clutch disc, it is common practice to also replace the throwout bearing. This is recommended because the throwout bearing is a critical component of the clutch system and is subject to wear during normal operation. If a new clutch disc is installed while reusing an old throwout bearing, there is a risk that the bearing could fail shortly after the repair, leading to additional labor and possibly more extensive repairs.

Additionally, surfacing the pressure plate is also advisable when replacing the clutch disc. This process ensures that the mating surfaces between the pressure plate, clutch disc, and flywheel are smooth and properly aligned. Any imperfections or inconsistencies on these surfaces can lead to slippage, noise, or premature wear of the new clutch disc.

By performing both of these actions—replacing the throwout bearing and surfacing the pressure plate—technicians can help ensure that the new clutch system functions effectively and has a longer lifespan. Therefore, the recommendation to do both is rooted in best practices for clutch replacement, focusing on reliability and performance.