The two poppets are referred to as 'Head' and 'Tail'. The centre in the tail is not adjustable and can be a pointed bolt, whereas the centre in the head poppet is usually an adjustable threaded bar.
I always end up calling them 'dead heads' But lets not go there!
In the back of mind I knew that I'd put a few bits aside from the last rebuild of landrover suspension. The springs were snapped up by my blacksmith friends but I kept the old bolts and spring hangers. So the handle on the dead head is a landrover spring hanger (circa 1960) and the tail centre is a suspension bolt and lock nut.
Once the centres are ready it's time for the holes in the poppets - probably the most exacting part of the pole lathe as errors in alignment easy are annoying. I used a 10mm bit for the holes and a 10mm wood bit to 'ream' out the holes a little until they are a tight fit.
And finally the two centres get to meet. Almost. Needless to say they did not align perfectly at first. But some quick work with a belt sander on one of the poppets gets them to within about 1mm. Some more fine tuning might be necessary once the lathe 'settles in'. Now to try it out!

2 comments:
The lathe is looking good, Mark. I must build one, one day soon. You've inspired me. And you've given me a good use for my old series three! Lathe and tool parts. That'll teach it to fail on the brakes.
Andy
Thank you for your kind comments Andy. I really am pleased with the way its working, much improved and so much better than a exercise bike!
Sorry about your series III, I have one of those to recycle or reuse as well, but the series II's will still be going for a while yet. Failing on brakes is about par for the course for me!
cheers
Mark
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