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#1
02-05-12, 10:43
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Steve
The carriers are built using BSF threads, but the Ford built stuff is still UNF,UNC.
Your gearbox top is post war withe the sprung loaded internal reverse detent. You can mahe up a plate to bolt on the lid (left side) to support the short end of the gimble. The australian carriers have just that. It bolts on with longer lid bolts, as their gearboxes never had the appropriate cast lugs on the left side. I can check the gear lever thread, and height from the ball to where the bottom of the gimble sits , if you want.
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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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#2
02-05-12, 18:13
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Threads on the nut
Lynn,
I didn’t have any problems with bolting the top on I just need to make a nut part number C01UC 103010. It says in the manual that it is 1/2" BSF but I am questioning the 16 TPI part. I think that it is a misprint and that the thread is actually different maybe 18 TPI. Stephen
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#4
02-05-12, 23:45
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Steve
I have checked, and the thread on the bottom of the column is 12 tpi, which is BSW -( British coarse) which will be 1 thread different than UNC.
__________________
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.... Last edited by Lynn Eades; 02-05-12 at 23:59. Reason: clarity
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#6
03-05-12, 10:03
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Quote:
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1967 Land Rover Plant Repair Vehicle 1941 Matchless G3L 194? Wiles Junior Trailer 1941 Morris Commercial CS8
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#7
03-05-12, 12:22
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Alex / Stephen
Alex,
 I was trying to make it easy for Stephen, who, being from the U.S.of A.,is probably not very familiar with British thread forms.While you are being so precise, it would be more accurate to say that BSC threads were used in some old leaky motorcycles.  How is that carrier coming together? Stephen, as has been pointed out, It is referred to as Whitworth, or British Standard Whitworth. 1/2" is the problem size as it is 12 TPI where as 1/2" UNC has 13 TPI. The other common sizes 1/4", 5/16", 3/8", and 7/16" are the same TPI as their counterparts (BSW and UNC) This is not the case with the fine threads (BSF and UNF)
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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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#8
03-05-12, 21:08
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Progress is slow
Lynn,
I have one of the newer Triumph Bonnevilles. No Whitworth threads but it does leak. Does that count?  Thank you all for the info. I am not sure where I would be without all of you. Lynn, thank you for asking about my progress. I did have an exciting weekend just past as I put the track back on after about a 1-1/2. I just need to get the engine running right. Some seats and armor might be a good Idea too. Stephen DeMocko ’44 MKII So Cal, USA
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