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Roger-hatchy
Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Jim.Walker
Joined: 27 Dec 2008 Posts: 1229 Location: Chesterfield
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Posted: Sun Dec 04, 2011 12:10 pm Post subject: |
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Wonderful skills! I wish I could do that! Or even had the patience and stamina to do so.
But I was surprised that the fastener tightening sequences were not by diagonal selection and seemed to go end to end.
But then I suppose oil and compression retention was not important on a non self powered model as there were no gaskets either. Nor I think, a lubrication system.
Jim. _________________ Quote from my late Dad:- You only need a woman and a car and you have all the problems you
are ever likely to want". Computers had not been invented then! |
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peter scott
Joined: 18 Dec 2007 Posts: 7118 Location: Edinburgh
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Roger-hatchy
Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Sun Dec 04, 2011 4:07 pm Post subject: |
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Thanks Peter
Something to peruse over this evening. |
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Greg
Joined: 03 Dec 2007 Posts: 445 Location: Dreamland Margate
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Posted: Sun Dec 04, 2011 5:46 pm Post subject: |
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Beautiful! |
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peter scott
Joined: 18 Dec 2007 Posts: 7118 Location: Edinburgh
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Scotty
Joined: 23 Nov 2007 Posts: 883
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Posted: Sun Dec 04, 2011 8:09 pm Post subject: |
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Roger - That was positively spectacular, thank you for posting! |
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47Jag
Joined: 26 Jun 2008 Posts: 1480 Location: Bothwell, Scotland
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Posted: Sun Dec 04, 2011 10:01 pm Post subject: |
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It truly is an amazing piece of engineering but I'm confused by the camshaft gearing. It looks to me to be 1:1 as oppsoed to the correct 2:1. So my question is how does it get a compression stroke IE both valves closed?
Art |
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peter scott
Joined: 18 Dec 2007 Posts: 7118 Location: Edinburgh
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Posted: Mon Dec 05, 2011 12:18 am Post subject: |
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Well spotted Art,
If you look at the camshaft I think the lobes are 180 degrees apart.
Remembering that it's not a real (4 stroke) engine but simply rotated by compressed air, I think the valves are arranged so that the inlet is open for the down stroke and the exhaust is open for the up stroke.
So compressed air isn't leaked when not required and the pistons give minimal resistance for the up strokes.
Peter _________________ http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 1/2 litre saloon |
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47Jag
Joined: 26 Jun 2008 Posts: 1480 Location: Bothwell, Scotland
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Posted: Mon Dec 05, 2011 12:47 am Post subject: |
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Thanks Pedro,
I thought it was an actual functioning engine. I saw the pipe but thought it was fuel. I noticed a couple of pushrods were looking a bit loose as though the valves were sticking.
Art |
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Roger-hatchy
Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Mon Dec 05, 2011 10:03 am Post subject: |
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Just under the Video window the text can be opened "Show More" for more detailed information. |
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47Jag
Joined: 26 Jun 2008 Posts: 1480 Location: Bothwell, Scotland
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Posted: Mon Dec 05, 2011 11:25 am Post subject: |
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DOH!!
Art |
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Roger-hatchy
Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Mon Dec 05, 2011 1:32 pm Post subject: |
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Don't worry Art, first time I have notice it as well |
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Jim.Walker
Joined: 27 Dec 2008 Posts: 1229 Location: Chesterfield
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Posted: Mon Dec 05, 2011 6:21 pm Post subject: |
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[quote="peter scott"]You might like this one too...
http://craftsmanshipmuseum.com/tomlinson.htm
CNC is a big help.
Peter[/quote
Totally gobsmacked!!!!
Jim _________________ Quote from my late Dad:- You only need a woman and a car and you have all the problems you
are ever likely to want". Computers had not been invented then! |
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