Hi, does anyone do a belt drive or 4 spring clutch upgrade kit for 53/54 plunger models? Everything I've found are for S/A models only. Would like to get rid of this 6 spring clutch if I can. Cheers
Good clutches. Why the desire to get rid?
The 6 spring B series clutch I can understand the need to change, but the A series plunger clutch?
I did many miles on a plunger A10 with a 6 spring and chain. Worked very well. Its actually a better primary drive than than a later SA. These drives and clutches are good for 70 years with regular servicing. The key to the 6 spring is replacing a worn centre and filing any wear off the plate tangs and basket. I would not see a belt as an upgrade on a plunger.
a norton commando clutch chainwheel drum may work, but the space is tight on the plunger chaincase side.
i agree that the standard plunger clutch is good enough normally and without the wearing shock absorber like the a65.
All good. Thanks for the opinions. I'll just have to continue trying to sort it out.
Cheers
Hi,
The plunger 6 spring clutch is superior to the SA frame 6 and perhaps even the 4 spring.
Duplex chain, roller bearings, slipper tensioner etc.
Over 120,000 miles covered.
Dave.