unused hole

[John galloParticipant @johngallo38006]

[John galloParticipant @johngallo38006]

I am asking this question only because I am curious. It has no real worth other than that.

On the Stuart D10 and I believe the 10V also the drawings show a 3/16 by 7/16 deep hole in the non flywheel end of the crankshaft. Nothing in the plans seems to use that hole. It may date back to an earlier version of these engines and I was wondering if any one knows what this hole may have been used for.

Thanks, John.

[JasonBModerator @jasonb]

I think it is for when the engine is fitted with a feed pump, there is a stub fitted into the hole with the worm gear on it.

Edited By JasonB on 21/09/2016 07:30:27

[mechman48Participant @mechman48]

See extracted paragraph from Stuart's booklet ' building a vertical steam engine' by Andrew Smith… last paragraph

George.

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