• Barry Brown
    27 November 2017 at 22:14 #52558

    My first thought was that this was to drive a tachometer but that is driven off the end of the camshaft.Of course it is possible my dynamo came from another make or model.Any ideas? Please advise. Thanks Barry

    Attached files

    Alec Rivers-Bowerman
    28 November 2017 at 23:35 #52559

    A wild guess, but it looks like it could be an advance/retard system that is attached to the dynamo and should have points and a distributor mounted to it. I believe there is also a magneto on the other side of the engine (I’m not familiar with M45 details…) so the car could run without this working. There is a photo in this ad that seems to show this device.

    Barry Brown
    29 November 2017 at 00:43 #52560

    Thanks for the reply Alec and link to the interesting M445. I am afraid the drive is still a mystery as the distributor has a right angle gear provision already in place. And of course on the other side of the engine resides the BTH magneto.

    Julian Messent
    1 December 2017 at 14:17 #52561

    Rev counter drive for such like the early Invicta and the military engines.

    Best regards,

    Barry Brown
    2 December 2017 at 01:48 #52562


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