Gallery, Projects and General > Project Logs
Getting a tacho drive fixed on a classic racing bike
rleete:
Famous last words. Never doubt Fate's ability to interfere!
bogstandard:
Fate has no chance this time, I was in and done before it had got out of bed.
Once I had a few jacking screws between the two main crank discs to stop things flexing, I anchored the conrod to them with plastic coated garden wire.
I found that because the centre drillings had been damaged over the years (mechanics hammers belting on the ends), I had to locate the shafts into the rotating chuck I had made for the tailstock, and a quick spin up showed that everything was running true.
I set the lathe speed to 190 and did a series of facing cuts across the inset ali discs. Once that was all cleaned up, I set to work with emery tape and sponge blocks and cleaned off all the rust that has grown on things during the couple of years it had spent in a ditch.
After an hour or so, the finished crank emerged. Supported on the high v-blocks I had purchased the other day, I knew I would find a use for them.
Very sorry for the sudden end gents, but nothing else to do now but send everything back to it's owner.
A now happy Bogs, and hopefully, a very happy bike rider.
Stilldrillin:
--- Quote from: bogstandard on October 01, 2009, 11:57:39 AM ---
A now happy Bogs, and hopefully, a very happy bike rider.
--- End quote ---
Great stuff John!
That`s just reminded me, from a long time ago...... "Happiness is 7,200rpm, in third"....... :thumbup:
David D
chuck foster:
thanks for the write up and photos john...............it's nice to see a project through from start to finish :thumbup: :thumbup:
chuck :wave:
bogstandard:
Many thanks lads, glad you enjoyed it.
It wasn't really a project as such, just a mishmash of different repairs, but as long as someone gets a bit of info that might help them at some time in the future, then it was worthwhile.
I just can't wait to get the shop cleaned up, and get back onto some of my own bits and pieces. I suppose that will take me a couple of weeks.
John
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