Service Letters

SERVICE LETTERS

NORTON CLUTCH SLIP

In response to a recent complaint of clutch slippage on a Norton Commando, I suggest the following:

1. Using a spring tool (see Commando workshop manual), remove clutch spring and plates.

2. Radially groove both sides of each fiber plate.

3. Use 30 wt. nondetergent oil.

Oil builds up in the plate interface and causes slippage. The grooves allow spring pressure to squeeze out the film build-up.

This is foolproof, cheap, and simple-only be careful with the diaphragm spring. Use the compressor or risk splitting your melon.

R. W. McIntyre Cleveland Heights, Ohio