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#1
14-08-11, 20:43
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brake drum thickness.
Hi, after my brake overhaul I found i had to discard the brake drums on the tank hunter as they were worn out, The ones i fitted still had the internal chamfer inside on the outer edge, (I am assuming this is a wear indicator as the ones i discarded did not have any chamfer left).
does anyone know the outer wall thickness on a new drum?. I found on inspection of the brakes some previous owner had, 'to keep the old girl going', modified the expanders on the brakes. I am now back to original good condition expander mechanisms, but am looking for a set in good condition now for the mortar carrier, if any one has any, I have carrier parts to trade and 'Lynn' a good canadian steering wheel for trade. I am also looking for a set of brake drums, shame these have had all the machinable material removed as otherwise they are in fine condition, Maybe someone has a set for trade?. thanks kevin.
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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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#2
14-08-11, 21:37
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is it not possible to have a ring made which can be "sweated" into the drum ?
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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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#3
14-08-11, 22:35
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Kevin
What is wrong with simply using oversize linings?
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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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#4
14-08-11, 22:44
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Kevin,
I have a couple of spare drums (PM sent). TTFN
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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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#5
14-08-11, 23:27
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Typically, brake drums allow for at least one round of machining.
On a 10" drum for example, usually they cap ot at 10.060", sometimes 10.090". On a larger drum like a carrier has, I assume there would be at least .090" to .125" allowable. Considering that these are neither high speed nor streetable, I think you could be flexible as to what is useable. If they were really bad, I would consider oversized linings as suggested.
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3RD Echelon Wksp 1968 M274A5 Mule Baifield USMC 1966 M274A2 Mule BMY USMC 1958 M274 Mule Willys US Army 1970 M38A1 CDN3 70-08715 1 CSR 1981 MANAC 3/4T CDN trailer 1943 Converto Airborne Trailer 1983 M1009 CUCV RT-524, PRC-77s, and trucks and stuff and more stuff and and....... OMVA, MVPA, G503, Steel Soldiers
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#6
15-08-11, 00:56
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Hi, I think i will keep the drums and look into getting oversize shoes made up in the future, I have three sets of NOS brake shoes to use up so am looking to put decent drums back on near original speck, like the idea of putting a ring in but this is not common practice. Shaun, if you have good drums on offer I will take them. I have a 75% complete set of rear springs for you, removed and free.
kevin.
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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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