I've mentioned the dynamo chain cover more than once and it's now risen to the top of the list for repair. I'm part way through the repair of the primary chain guard and I want to make sure that all of the items that affect its position are in place before I finalise the welding.
The dynamo chain cover is in pretty good shape really apart from the fact that the chain has at some time worn through one of the feet and it has disappeared.
It's a simple matter to make a new one out of a bit of 16 gauge steel sheet using the pillar drill and the linisher. More difficult is to drill out the old spot welds and release the remains of the original foot. Here's the new bit in place with 5/16" holes where the spot welds used to be:
It takes a surprising amount of material to make a plug weld into those holes. The tricky bit is to support the work on the copper heat sink and make the welds without burning the original material away. However it soon done and fitted back in place for testing prior to clean up:
No comments:
Post a Comment