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Old 05-04-17, 04:35
colin jones's Avatar
colin jones colin jones is offline
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This part is the centre of the trans in between the gearbox and the angle drive box. I have made up some aligning tubes of specific length and distance apart.
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Old 05-04-17, 04:39
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colin jones colin jones is offline
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Obviously the location of the bearing housings are critical and I should be very very close to the original location. I am constantly machining up plugs, spacers and anything else I need to obtain accuracy.
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Old 05-04-17, 04:42
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colin jones colin jones is offline
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The gear that fits into the housing here must be some kind of support idler, as it has a small gear that runs of the main bottom shaft but does not move and only ever runs on half the idler gear. I assume it served some purpose.
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Old 05-04-17, 04:44
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colin jones colin jones is offline
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The housing is complete and the gear fits really nice and spins well. I just need to get it to fit into the jigsaw and remain aligned. Matt,, sorry I never answered your question of why I'm using steel. There is a few reasons. First is I have lots of different sized on hand, I find it easier to work with than alloy. It doesn't damage in the lathe chuck and you can give it a hammer with out distorting it. Welding is so mush easier as is shaping and I'm much better at welding steel than aluminium.
Colin.
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Last edited by colin jones; 05-04-17 at 04:51.
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Old 05-04-17, 08:31
Lynn Eades Lynn Eades is offline
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Colin, it looks to me that the little gear is the oil pump???
Great work sir!
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Old 05-04-17, 11:24
David Herbert David Herbert is offline
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I agree with Lynn, almost certainly to throw oil up onto the rest of the gears when first starting and if the tank is at an extreme angle. This gearbox is going to be a thing of beauty when finnished, I hope the front of the tank can be opened up easily so you can show it off. Oh - sorry - it's Bitish so almost certainly no access at all !

Are you going to have to make another one of these for the other Vickers ?

I continue to be very impressed, great work, David
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Old 05-04-17, 11:38
David Herbert David Herbert is offline
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Just been looking at the earlier photos of the gearbox again. Is this gear not the reverse idler gear? Half meshing with a gear on the output shaft and half with a gear on the layshaft? If not, where is the reverse idler gear as I can only see one provision for a third shaft ?

David
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