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  #541  
Old 20-11-17, 04:33
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After removing the sump as gently as I could it was not a good sight. One corner is all but corroded away and a section of the floor as well and I havn't looked inside yet. Also the crankcase spacer is also quite corroded as well. I knew it was very thin walled as I could hear the sound just tapping it. Rather disapointing
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  #542  
Old 20-11-17, 04:39
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I may have to re-evaluate this engine The crank appears to be good and I see it does have sleeves but the bottom is a mess. I will consider fabricating the whole bottom section but that will be a last resort as some of may have been line bored and that is not something I can do if it requires precision.
At this stage I will weigh up my options so far.
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  #543  
Old 20-11-17, 05:43
David Dunlop David Dunlop is offline
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Colin.

Bit of a shame with regards to the engine corrosion. It looks from your photos the main engine block assembly is in three parts. Upper holding the cylinders and pistons, middle unit holding the crank and related bits and then a lowermost cast, flat looking rectangular oil sump. Interesting design, if true. Could make for a lot of flexibility for various installations, but also a lot of headaches for restorations. And, of course, the latter point would not have been on anybody’s radar in the Meadows Design Branch in the 1930’s.

David
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  #544  
Old 20-11-17, 09:05
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Hi Col', with a bit of luck some of the lagonda folk may have a solution.
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  #545  
Old 20-11-17, 10:24
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Quote:
Originally Posted by colin jones View Post
I may have to re-evaluate this engine The crank appears to be good and I see it does have sleeves but the bottom is a mess. I will consider fabricating the whole bottom section but that will be a last resort as some of may have been line bored and that is not something I can do if it requires precision.
At this stage I will weigh up my options so far.
Colin,
The Lagonda club appear to have had some new sump castings made, maybe they are adaptable for the tank engine?

https://www.lagondaclub.com/shop/m45...eadows-engine/

I think the sump you have could be made of Elektron, a magnesium alloy, it was also used to make the mantlet in the turret.

Richard
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  #546  
Old 20-11-17, 10:37
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I know it might be far fetched, But Jay Jeno had a lower half of HRG engine (think Meadows engine) https://www.youtube.com/watch?v=qZUG...735F5B&index=5
and there was also a feature about 3d scanning https://www.youtube.com/watch?v=n60N...735F5B&index=3

Maybe some this could help
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  #547  
Old 20-11-17, 10:48
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After a closer look, I can make a new sump and the riser above (I'll call it that)
But I will get the rest checked out first to make sure the top pieces can be resurrected. David, it has a sump, riser, crankcase, block, head, cover. Lots of bits that have to line up precisely. Quite a complicated system.
Dave, I have joined the Lagonda club but waiting for approval.
Richard, I would say you are spot on what it is made of and would be very hard to weld which is why I would make the parts out of steel if I do in fact go down that path. They certainly don't look like difficult parts to make but I do not want to create any more work that I already have. Hopefully the members of the Lagonda club may be able to steer me in the right direction.
Colin.
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  #548  
Old 20-11-17, 14:53
simon king simon king is offline
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Quote:
Originally Posted by Niels V View Post
I know it might be far fetched, But Jay Jeno had a lower half of HRG engine (think Meadows engine) https://www.youtube.com/watch?v=qZUG...735F5B&index=5
and there was also a feature about 3d scanning https://www.youtube.com/watch?v=n60N...735F5B&index=3

Maybe some this could help
I think the Hurg used the 4 cylinder, 1500cc Meadows Unit unfortunately.
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  #549  
Old Yesterday, 14:21
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Hi Colin,

Awesome job. In case you do not have it, a picture from the book 'Tanks in the East'.
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  #550  
Old Yesterday, 19:33
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Quote:
Originally Posted by Phillip View Post
Hi Colin,

Awesome job. In case you do not have it, a picture from the book 'Tanks in the East'.
And if my eyes are not deceiving me, the following tank is 272 Platypus (another survivor, now in USA). Good photo!
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