dynamo chain

bob · Post by **bob** » Sun Nov 21, 2010 8:01 pm

Finally getting round to fitting full electrics to my 1953 16MS .
( it has had no electrics for many years )
There are 2 alternative dynamo drive chains listed 46 or 49 link .Endless .
As the dynamo sprocket is fixed at 17 tooth does the correct chain depend on the number of teeth on the crankshaft sprocket and if so what are the number of teeth on this ? .
Thanks .

Wavy · Post by **Wavy** » Sun Nov 21, 2010 8:36 pm

I´m not up on this but I believe the drive on the engine sprocket changed later on, experts please!

bob · Post by **bob** » Sun Nov 21, 2010 8:45 pm

oop,s sorry think I need to go to specsavers ,
Just reread the parts book .
Dynamo chain is 49 links.
the 46 link is Magneto chain .

wilko · Post by **wilko** » Sun Nov 21, 2010 10:57 pm

On later models they changed from 17 teeth to 21 teeth on the crank sprocket. I still run the 17tooth and it still spins fast enough for me to equalize lights at 20 mph.