I have been wanting to sort out the dynamo drive for a while - not having it in place leaves a lot of parts laying around on the bench that I want to clear up. It was hindered by having to make a special puller for the dynamo bearings, something that I use infrequently but is very necessary if you're going to rebuild one of these dynamos.
Having finished the puller, I spent a little while turning up a short spacer. For some reason the replacement armature is a little shorter than the original though it fits where it needs to!
And I needed to file up a Woodruff key for the dynamo drive sprocket. It actually took me a long time to get to this place because I had inadvertently assembled the dynamo and fitted it with the dynamo body the wrong way round which caused the sprocket to be something like a half an inch out of line!
Here's the drive in place
That was a chain in amongst the past that came with the bike - is the correct 3/8 inch pitch but the width is way too much. I'll have to look at simply bearings and see if I can find another one, but it really needs to be endless.
You can see here that this over wide chain will rub on the crankcase.
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