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+--- Thread: 1927 Chummy #6 Dynamo removal (/showthread.php?tid=3448)
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1927 Chummy #6 Dynamo removal - Nick Salmon - 23-10-2019
Please could someone advise me if it is possible to remove the dynamo alone, leaving the casing in place? This is the illustration from Woodrow. Do A and B hold the dynamo in place?
Dynamo.jpg (Size: 94.02 KB / Downloads: 388)
RE: 1927 Chummy #6 Dynamo removal - Ruairidh Dunford - 23-10-2019
Yes - you must loosen A and then remove B.
It can be tight but should rotate back and forth, then out!
RE: 1927 Chummy #6 Dynamo removal - Nick Salmon - 23-10-2019
Many thanks Ruairidh. How long is bolt B? Can it be removed sufficiently without taking the fan carrier off?
RE: 1927 Chummy #6 Dynamo removal - Robert Leigh - 23-10-2019
Bolt B is of a similar type to a front camshaft bearing locator, quite short with a plain portion at the end.
Robert Leigh
RE: 1927 Chummy #6 Dynamo removal - Nick Salmon - 23-10-2019
Phew, relief. Thanks Robert.
RE: 1927 Chummy #6 Dynamo removal - Parazine - 24-10-2019
Bolt "B" should be an oiler in fact. It connects to an oilway that in turn connects to the front dynamo bearing. These oilers are unobtainable right now, I was going to make something up by using a 7/16 BSF bolt. The head needs to be reduced to 3/8 WW I think and the bolt is then through drilled with a spring loaded oiler pressed into the top (one of these):
images.jpg (Size: 4.71 KB / Downloads: 254)
Another project for later!
RE: 1927 Chummy #6 Dynamo removal - vintage_racing - 24-10-2019
A gentle nudge with an oil filter removing strap / tool helps too.. mine is made with a rubber strap so doesn't mark or damage the dynamo
RE: 1927 Chummy #6 Dynamo removal - Nick Salmon - 24-10-2019
That's interesting, thanks. In the absence of such a thing would it make sense to occasionally remove bolt B and pop a drip or two of oil down the hole?
RE: 1927 Chummy #6 Dynamo removal - Parazine - 24-10-2019
In practice, that's what I do! Don't go overboard though. I WILL get round to making the oiler one day.
RE: 1927 Chummy #6 Dynamo removal - Robert Leigh - 24-10-2019
Yes, I do have the oiler on mine. Nick's question referred to a bolt, and my aged memory forgot the real situation.
Robert Leigh