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  #1  
Old 22-08-17, 14:56
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Default 2 pdr breech mechanism

Hi, Anyone got an exploded type diagram of the breech ring and block mechanism of a 2 ponder anti tank gun ?.

Regards Kevin.
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1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
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  #2  
Old 22-08-17, 18:13
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Kev here are some excerpts from my 2 pounder manual. Happy to copy other pages if needed. But Rob Van Meel has made a copy of my entire manual Here if you need it. 168 pages plus plates etc.

http://www.robvanmeel.nl/?q=content/...re-control-8-p

Ron
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  #3  
Old 22-08-17, 18:18
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For some reason, only one picture downloaded? Here is the other one. Ron
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  #4  
Old 22-08-17, 21:39
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Thanks Ron, that's most helpful will order a copy, I'm also after the barrel dimensions for the Mk1 flared end barrel as seen here. I know yours is the later barrel profile.

Cheers Ron.
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IMG_0236.jpg  
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #5  
Old 23-08-17, 02:01
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Default traing vid

Ron, Not sure if you have seen this before ?

https://youtu.be/Oq-565saS1E
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #6  
Old 23-08-17, 07:45
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Not seen that before Kev. I'll sit with a whiskey and watch the whole thing later. Cheers Ron
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  #7  
Old 24-08-17, 08:08
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Kev there are pictures and plates of the various barrels but I haven't studied the manual lately to see if there are measurements. But I've found in the past that there is usually enough information for scaling purposes to see if most of the measurements are the same as my barrel. Ron
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  #8  
Old 25-08-17, 00:11
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Has anyone got a spare one of these cam gears for the 2pdr mechanism?
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IMG_0253.jpg  
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #9  
Old 25-08-17, 14:31
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Gents, Also does anyone happen to know if the 6pdr striker mechanism is the same size as the 2 pdr, so are interchangeable?
Attached Thumbnails
IMG_0261.JPG   IMG_0262.JPG  
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #10  
Old 25-08-17, 20:15
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I don't think so Kev. My engineer mate who helped me no end with my 2 pounder project also made replicas of the 6 pounder striker for Nigel Montgomery's 6 pounder Churchill tanks and they are much bigger than my 2 pounder striker. Ron
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  #11  
Old 25-08-17, 21:40
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Ron, do you have a photo of yours in position, I think a 6 pounder striker will fit in the 2 pdr block and engage, but it's shaft is longer so could be modified to resemble a 2 pdr one. I have a couple of 6 pdr deactivated strikers here.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #12  
Old 26-08-17, 09:02
David Burr David Burr is offline
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The 6pdr striker is larger than the 2pdr striker in all dimensions. It is just scaled up from memory, but with an extra long front piece
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  #13  
Old 26-08-17, 09:39
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Kev I think David is correct. I'm sure every dimension of the 6 pounder is bigger. Here is mine mounted. The one on the vice is another one that I acquired but long gone now. Ron
Attached Thumbnails
2 Pounder 102.jpg   2 Pounder 106.jpg   2 Pounder 107.jpg   2 Pounder 013.jpg  
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  #14  
Old 26-08-17, 13:42
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If you lay a 6 pdr block next to a 2 pdr block the hole and keysize I believe is physically the same, I'll make a comparison this evening and post photos.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #15  
Old 26-08-17, 18:39
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I think the 6pdr striker was basically derived from the 2 pdr one, has anyone got a picturr comparison of a two pdr striker next to a 6 pdr one.
Attached Thumbnails
IMG_0277.jpg   IMG_0275.jpg   IMG_0278.jpg  
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #16  
Old 26-08-17, 18:55
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Tomorrow I'll ask my mate what drawings he has.....If any.

Ron
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  #17  
Old 26-08-17, 22:13
Andrew Rowe Andrew Rowe is offline
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Default 2pdr verus 6pdr

Here are the two for reference, the sleeve dia. appears to be the same, at about 31mm ( have not got my verniers at hand ) and the tube length is about 87mm on the 6pdr and 53mm on the 2pdr. from the face to ( that is the side that goes against the block ) is about 119mm overall length to end of firing pin and the 2pdr is about 98mm. The threads have about the same dia. at 40mm overall, so there you go, with a bit of rework you could quite easily fit a 6pdr into a 2pdr, as even the locating pins and safety mech are same dia. and in the same locations offset from the centre line the same, Cheers Andrew.
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DSCF8287.jpg   DSCF8285.jpg  
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  #18  
Old 27-08-17, 13:59
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Thanks Andrew, looks like I will graft in a 6 pdr one into my 2pdr block, unless there is a 2pdr one available? 😜

Cheers.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #19  
Old 02-09-17, 21:50
shaun shaun is offline
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Default 2 pdr

Quote:
Originally Posted by kevin powles View Post
I think the 6pdr striker was basically derived from the 2 pdr one, has anyone got a picturr comparison of a two pdr striker next to a 6 pdr one.
Is that a nice "live" 2 pdr block ?
section one part ??
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Morris C8
Ford GPW jeep 1945
Morris 1000 (ex mil)
SAS LSV
Harley Davidson MT 350 motor cycle
Universal carrier MK 1*1943 Ronson (under restoration)
Universal carrier MK 2* 1944 (Puddle Jumper HSK 345)
Ferret MK 1/1 1956
Ferret MK 2/4 1958
CVR(T) Scorpion
432 MK2
Daimler MK1 armoured car 1943
(winner best wheeled armour W&P show 2011)
Daimler Dingo MK2 1944 (awaiting restoration, aquired 11/12/2011)
Fordson WOT 3 D 1940 (awaiting restoration )
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  #20  
Old 03-09-17, 10:09
David Burr David Burr is offline
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If you do graft the 6pdr mech into the 2pdr block, you may have to alter the firing piece on the side of the breech ring to make it work with the 6pdr mech.
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  #21  
Old 03-09-17, 12:18
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Quote:
Originally Posted by shaun View Post
Is that a nice "live" 2 pdr block ?
section one part ??
Blocks are cruciformed and welded.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #22  
Old 03-09-17, 12:32
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Quote:
Originally Posted by David Burr View Post
If you do graft the 6pdr mech into the 2pdr block, you may have to alter the firing piece on the side of the breech ring to make it work with the 6pdr mech.
Thanks David for the constructive comment, I will look into that but first got to get those firing mechanism parts lol, can you help ?

Thanks
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #23  
Old 03-09-17, 12:56
shaun shaun is offline
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Quote:
Originally Posted by kevin powles View Post
Blocks are cruciformed and welded.
But to be done to spec the firing mech hole should be welded and blocked to conform to the reg if you don't have a mech fitted
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Shaun Hindle

Morris C8
Ford GPW jeep 1945
Morris 1000 (ex mil)
SAS LSV
Harley Davidson MT 350 motor cycle
Universal carrier MK 1*1943 Ronson (under restoration)
Universal carrier MK 2* 1944 (Puddle Jumper HSK 345)
Ferret MK 1/1 1956
Ferret MK 2/4 1958
CVR(T) Scorpion
432 MK2
Daimler MK1 armoured car 1943
(winner best wheeled armour W&P show 2011)
Daimler Dingo MK2 1944 (awaiting restoration, aquired 11/12/2011)
Fordson WOT 3 D 1940 (awaiting restoration )
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  #24  
Old 03-09-17, 14:39
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Quote:
Originally Posted by shaun View Post
But to be done to spec the firing mech hole should be welded and blocked to conform to the reg if you don't have a mech fitted
Will consult with the proof house.
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2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #25  
Old 03-09-17, 21:29
shaun shaun is offline
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Default Deactivation regs

No need , here are the current regs
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Shaun Hindle

Morris C8
Ford GPW jeep 1945
Morris 1000 (ex mil)
SAS LSV
Harley Davidson MT 350 motor cycle
Universal carrier MK 1*1943 Ronson (under restoration)
Universal carrier MK 2* 1944 (Puddle Jumper HSK 345)
Ferret MK 1/1 1956
Ferret MK 2/4 1958
CVR(T) Scorpion
432 MK2
Daimler MK1 armoured car 1943
(winner best wheeled armour W&P show 2011)
Daimler Dingo MK2 1944 (awaiting restoration, aquired 11/12/2011)
Fordson WOT 3 D 1940 (awaiting restoration )
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  #26  
Old 04-09-17, 00:48
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Default Mk1 barrel

Does anyone have dimensions of a mk1 barrel which has the tapered and flared end?, or know of a museum in the U.K. Which has one ?, as pictured.

Thanks
Attached Thumbnails
IMG_0236.jpg  
__________________
2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #27  
Old 30-09-17, 23:12
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Default Mk I and IX barrel

Gents,

I've been to bovington tank museum and measured a 2pdr barrel in a Valentine tank. Ive attached a drawing here, the muzzle outside diameter at the tip is 2 7/8". The 53 1/32" dimension comes from a later stepped barrel.

I've read on the internet there are two lengths of barrel, one with an overall length of 81.89" designated L/52 and an L/50 with an overall length of 79" although I've not read this in any official war office publication.

Does anyone know or has a MkIX or X barrel to confirm its actual length when removed from the breech ring?

Thanks Kevin.
Attached Thumbnails
IMG_0829.jpg   IMG_0830.jpg   IMG_0601.jpg   IMG_0606.jpg   IMG_0633.jpg  

__________________
2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #28  
Old 01-10-17, 07:14
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Kev did you check out any measurements of the 2 pounder barrel with little John attachment displayed at Bovy? Ron
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  #29  
Old 01-10-17, 10:40
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Ron, yes looked at that but it's a later style and difficult to measure with the adaptor and ring on, but only found out about the L/52 and L/50 when I got back. Do any of the two total length measurements correspond with yours?

Here is the one in the rack at bovy
Attached Thumbnails
IMG_0617.jpg   IMG_0615.jpg   IMG_0616.jpg   IMG_0614.jpg  
__________________
2pdr Tank Hunter Universal Carrier 1942 registered 11/11/2008.
3" Mortar Universal Carrier 1943 registered 06/06/2009.
1941 Standard Mk1 stowage Carrier, Caunter camo.
1941 Standard Mk1 stowage Carrier, light stone.
10 cwt wartime mortar trailer.
1943 Mk2 Daimler Dingo.
1943 Willys MB.
1936 Vickers MG carrier No1 Mk1 CMM 985.
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  #30  
Old 01-10-17, 17:52
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Kev mine is a MK X. I can only measure up to the breech which as you can see is 75.25".....If it helps? Ron
Attached Thumbnails
2 Pounder 112.jpg   2 Pounder 113.jpg   2 Pounder 114.jpg  
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