Author Topic: Dynamo Woe  (Read 1289 times)

Online terryg

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Re: Dynamo Woe
« Reply #15 on: 14.12. 2015 09:22 »
Is there enough thread on the armature end to get two thin nuts on, in a locking arrangement?
I haven't got the bits in front of me but I'd be inclined to look at that possibility, together with a suitably thinned version of Dutch's peg spanner.
Terry
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Online trevinoz

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Re: Dynamo Woe
« Reply #16 on: 14.12. 2015 20:14 »
Trouble is, Terry, the thread is 15mm, 18 tpi. It becomes a lot of work for something which is not necessary.
Don't even think about using Loctite on the lock ring either because when it needs to be removed usually flame is involved.

Online terryg

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Re: Dynamo Woe
« Reply #17 on: 14.12. 2015 20:56 »
Thanks Trev. Is that a PG9 thread?
PG = Panzer Gewinde.

If it is then taps are a bit pricy, I agree.
Terry
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Online morris

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Re: Dynamo Woe
« Reply #18 on: 14.12. 2015 21:57 »
I tighten the nut by hand and give it a couple of knocks with a small aluminium drift. Did several like that and never got one to come off.
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Re: Dynamo Woe
« Reply #19 on: 15.12. 2015 21:31 »
Terry, I don't know whether the thread is a PG or not but I suspect it is just a Lucas special.
They did the same on voltage regulator adjusters and Altette push rods, seemingly a thread for a task.