Hi

The clutch on my S7 started slipping under heavy load (maybe it was a mistake to oil it to stop it squeaking) so I decided to dismantle it and clean it.

I decided that making a simple compressor wouldn’t be too hard, so I set to with some 4mmx30mm hot rolled bar, 6mm screwed rod with four M6 nuts and an M8x60 bolt from B&Q.

I cut two pieces of bar 56mm long, bored a 7/8” hole in the centre of one and drilled and tapped two M6 holes on 41mm centres. The second piece had an M8 hole in the centre and two 6mm clearance holes on 41mm centres. I then cut two pieces of M6 screwed rod 180mm long. Using my mandrel handle, I centre drilled the end of the M8 bolt in the lathe.

Here are two pics of the compressor:

To use it, I split the compressor and slid the bar with the 7/8” hole past the circlip groove in the countershaft spindle, fitted the circlip and then assembled the compressor. I then screwed the M8 bolt until it contacted the ball bearing and used a screw driver to unscrew the push rod off the driver plate.

Here are some pics of the pushrod and spring.

I hope this is of some help to others contemplating dismantling the Super 7 clutch.

Edited By Otley on 26/07/2018 19:23:08

Edited By Otley on 26/07/2018 19:32:39