When it comes to clutch installation, greasing the hub spline of the clutch disk is crucial for smooth operation and long-term durability. Proper greasing is crucial in the reduction of tribocorrosion and enables the disk to slide smoothly within the transmission input shaft hence improving the performance of the clutch.
What Happens If the Clutch Hub Spline Isn't Greased?
If the hub spline is not properly greased, it is likely to experience tribocorrosion. This takes place when the clutch disk locks rather than moving freely along the transmission input shaft. In the long run, this leads to car clutch trouble, like sticking in the disengaged position, and hence need expensive car clutch repairs.
How-to-guide
How to Properly Grease the Hub Spline of a Clutch Disk?
Greasing the hub spline properly is very important in order to have no problems with the clutch. Follow these steps to ensure optimal performance:
- 1. Lightly grease the hub spline of the clutch disk and the transmission input shaft
Use SACHS high-performance grease sparingly on the hub spline of the clutch disk and the transmission’s input shaft. This high-quality grease helps prevent corrosive formation and ensures the free movement of these components. - 2. Move the clutch disk back and forth
After applying the grease remove the clutch disk and slide it backwards and forward on the transmission shaft to ensure that the grease has spread across the surface of the clutch disk and that the clutch can slide effectively. - 3. Remove any excess grease
Grease, especially in large quantities, is capable of causing some issues. Ensure that any excess grease is cleaned off from the hub spline as well as the transmission input shaft especially because it may splash on the clutch lining during use
What Happens If You Use Too Much Grease on a Clutch?
Greasing of the hub spline if done in excess will cause grease to transfer to the clutch linings during operations which leads to clutch slipperiness or grabbing. This may lead to erosion and expensive repairs from this source.. It is, therefore, wise to ensure that the high-performance grease is applied in the recommended amount only.
Why Should You Check Lateral Run-Out Before Installing the Clutch Disk?
To achieve the best results always ensure that you measure the lateral run out of the clutch disk before you proceed with the installation. The run-out should not be more than 0. 5 mm. Any value higher than that may cause clutch drag leading to operational problems and high wear and tear on clutch systems and parts connected with it.
Expert Tips from the VOX Car Doctors: How to Grease a Clutch Disk
During Automechanika 2014, the VOX Car Doctors showed car enthusiasts how to lubricate a clutch disk. Their recommendations are using high-performance grease and making sure that there’s no drop of grease left after the installation. Adopting these suggestions from the professional means that clutch durability and performance will be enhanced impressively.
FAQs
Yes, it is crucial to lubricate the hub spline of the clutch disk using a thin layer of oil. Greasing helps in avoiding corrosion and facilitates the smooth running of the transmission input shaft thus enhancing the functioning of the clutch.
Whenever you are installing a clutch for your vehicle, the recommended procedure is that you put high-performance grease on the hub spline of the clutch disk as well as the input shaft of the transmission. Always ensure that you eliminate any excess of grease because if it is expelled to the clutch linings, it will severely impair the function of the clutch.
The splines on the clutch disk are the slots which interconnect with the splines of the transmission input shaft. These splines enable free sliding, thereby allowing the clutch disk to engage or disengage while transferring torque from the engine to the transmission system.
The clutch disk has a central hole that has a series of splines that match closely the transmission input shaft. It also facilitates torque transfer from the engine to the transmission whilst accommodating the movement of the clutch disk backwards and forwards for gear shifting.
Nice-to-know
The VOX Car Doctors visited ZF Aftermarket at Automechanika 2014. In this video, celebrity TV mechanics Hans-Jürgen Faul and Holger Parsch demonstrate how to grease a clutch disk properly.
ZF Aftermarket product range
Discover the complete portfolio of clutch systems in our product catalog.
