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#1
05-05-12, 02:08
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Error
The nut that fits on the top of the transmission shift lever should be a 1/2 B.S.F. hex., (slotted). The part number is CO1UC 103010. It is also known as U.K. No. MT5-9936. Reference FUC-03. Looking at Chilwell, the LV6 MT5 P/N 9936, Nut-Slotted 1/2" appears. That 1/2 B.S.F. nut can be found on Carriers in the No.1, 2, 2A and 3 series, with Mk.'s I, II and III.
Should a 1/2" B.S.F. nut fit a thread count of 16 TPI ? I previously mis-identified TL2868, Nut, slotted that fits on the bottom of the steering column when describing one of the three locations where the 1/2" B.S.F. nut, part number CO1UC 103010 appears. Last edited by Michael R.; 05-05-12 at 06:00. 
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#2
05-05-12, 03:50
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Michael R
Yes. 1/2" BSF is 16 tpi
__________________
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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#3
07-05-12, 17:14
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not 16 TPI
Guys,
I know it says in the manual that the nut that goes on the gear selector shaft is ½” BSF, but at least for the shaft in my hand it is not 16 pitch. The nut I made using the ½” BSF 16 pitch tap in the pic will not fit on the shaft. The second picture also shows a thread file with the 16 pitch rotated in contact with the shaft threads and you can see that they do not match. Stephen
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#4
07-05-12, 21:12
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Stephen
Now we know what its not.(16 tpi) We now need to know what it is.
Is it 13 tpi Whitworth, or 12 tpi UNC, or something else?
__________________
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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#6
08-05-12, 09:15
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Stephen
I have checked what I have, which is 16 TPI x 1/2" which is BSF.
18 tpi x 1/2" doesn't match up with anything that I know of. Sorry, I cant help any more.
__________________
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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#7
08-05-12, 19:54
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Lol! Wtf!
Lynn,
I wonder if there is something odd about the shaft in my hands (That doesnt sound right LOL!)like it was modified but it doesnt look like it. You are right it makes perfect sense that it would be 16 pitch but the 16 pitch nuts I made dont fit. Plus like you have stated 18 TPI is very very strange but look at my pics. I have attached 4 pics one shows that the shaft dia clearly is 1/2" dia. One shows how far off 16 TPI is using a thread gauge. One shows that 18 TPI is pretty close and would likely work. Lastly a Metric thread gauge with 1.5 mm Pitch looks right on the money but that makes no sense to me. Stephen
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