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#2
16-05-09, 23:26
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Some years ago when I was restoring my MK II carrier, I had the same problem with the pins. I had a few NOS pins checked for hardness and they came up at 54-56Rc. The original pins are induction hardened to prevent warping ( oven or flame hardening would produce banana like pins unless they were held in a fixture ) while leaving the center portion tough. The pins are cold headed to shape the end, the same process as making bolts. From the factory, the track sections were cold headed on both ends, with a joining pin with the cotter pin hole to assemble the sections. I have used .4375 dia. Class 60 shafting cut to length and then welded on the heads to replicate the original pins. One last point, T16 pins are slightly shorter than the pins used on UC track, Canadian track anyway.
Perry Last edited by Perry Kitson; 17-05-09 at 14:45. Reason: corrected hardness 
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#3
17-05-09, 00:26
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For what it's worth,
I have made new pins for the LP style track using X4140 shafting.
I would have to search out the original note, but it was 'centreless ground' I think? Anyway they have been on the carrier for probably 10 years now. several other carrier owners in NZ have used the same material. I can't comment on forming the head as we don't have the domed end as the pin is held in place with a lead plug. Rob LP2 (NZ) MG
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#4
17-05-09, 00:28
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Original T-16 pins should be the same length as normal British/Canadian carrier pins. The post war Swiss modified T-16s have milled down track links which are slightly narrower and so used a shorter length track pin. And they made them all as cotter pin type holdings.
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David Gordon - MVPA # 15292 '41 Willys MB British Airborne Jeep '42 Excelsior Welbike Mark I '43 BSA Folding Military Bicycle '44 Orme-Evans Airborne Trailer No. 1 Mk. II '44 Airborne 100-Gallon Water Bowser Trailer '44 Jowett Cars 4.2-Inch Towed Mortar '44 Daimler Scout Car Mark II '45 Studebaker M29C Weasel
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#5
17-05-09, 16:58
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Thanks for all the information. I'm afraid I don't have a press to make the proper end for the pin. I guess it will have to have a cotter pin on each end.
Jon
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#6
17-05-09, 20:18
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swiss track milled down......why, what reason?.
Hi, I am curious to know why the swiss army had the track links milled down?, the shorter cotter pins type pins are only 1/2" shorter than standard carrier pins. I have several hunderd of these shorter pins, ideal for welding a washer on the end but little use for putting a cotter pin through on a universal carrier.
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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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#7
17-05-09, 21:50
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the cotter type pins, are these the ones with the soft ends which you flatten over ?
i wonder if the Swiss army changed the spec of the track for transportation purposes, so they would fit existing trailers / wagons etc etc. i have no doubt the answer will be in Nigels book.... will put my beak back in there and have a look 
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is mos redintegro __5th Div___46th Div__ 1942 Ford Universal Carrier No.3 MkI* Lower Hull No. 10131 War Department CT54508 (SOLD) 1944 Ford Universal Carrier MkII* (under restoration). 1944 Morris C8 radio body (under restoration).
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#8
18-05-09, 12:34
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Short pins
Those short pins would probably be great for somebody with an Australian carrier, with lead plugged track.
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Bluebell Carrier Armoured O.P. No1 Mk3 W. T84991 Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6. Dodge WC55. 37mm Gun Motor Carriage M6 Jeep Mb #135668 So many questions....
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