Hyundai Coupe clutch slip

Just a quick post on a problem I've come across a couple of times in my workshop. The problem is with the Hyundai Coupe clutch, it suffers from slipping. This could always be lots of things like, oil contamination, worn out clutch disc, slave cylinder, pipe work, air, adjustment or master cylinder. However, I have found that this particular model suffers from the clutch master cylinder breaking internally!

The small pin on the right should be connected to the section on the left and compress and hold the spring.

The problem this creates is that the clutch will not fully release because hydraulic fluid can't flow back in to the master cylinder, this will give clutch slip. Of course, if the car has had this problem for some time, then the clutch will have suffered and may need to be replaced.

It is possible to repair the insides, as its only a pin that has worn out of its retainer. Pattern master cylinders are only about £50. We have problems getting the right cylinder before, but managed to use the insides of a new one that was almost the same, and put them into the old body. This was a very satisfactory repair.