Can anyone help shed some light on the differences between the clutch shaft (G3), carrier (C3) and retaining nut (C20) for the pre and post 1954 twin clutch ?
Whatever the differences are determine which version of C18 is used.
Richardson says; "In 1954 a rubber O ring was introduced to take the place of the bonded carrier seal, but this requires a different pattern clutch shaft (G3/1AS), carrier (C3/2) and retaining nut (C20/1)" See Fig 33 and 36 in Richardson.
This is also covered in Know Thy Beast Chapt 11, 3rd para of section "The Shoe Carrier, Main Nut and Seal". Here Stevens says the O ring can be used with the earlier components if a steel ring is used as a spacer but still the newer version C3/1 and C20/1 would be needed. Or, he even says that, the O ring and Light alloy seal can be used together.
From the spares list;
C18/1 = Early type light alloy.
C18/2 = 1954 and after O ring and is used with G3/1AS, C3/2 and C20/1
So the question is how can you differentiate the 1954 components of; clutch Shaft G3/1AS, carrier C3/2 and retaining nut C20/1 from the earlier versions which I assume are G3, C3 and C20 ?
Are there any dimensional differences ?, or pattern differences ? or other ?
Thanks in advance,
Richard
Whatever the differences are determine which version of C18 is used.
Richardson says; "In 1954 a rubber O ring was introduced to take the place of the bonded carrier seal, but this requires a different pattern clutch shaft (G3/1AS), carrier (C3/2) and retaining nut (C20/1)" See Fig 33 and 36 in Richardson.
This is also covered in Know Thy Beast Chapt 11, 3rd para of section "The Shoe Carrier, Main Nut and Seal". Here Stevens says the O ring can be used with the earlier components if a steel ring is used as a spacer but still the newer version C3/1 and C20/1 would be needed. Or, he even says that, the O ring and Light alloy seal can be used together.
From the spares list;
C18/1 = Early type light alloy.
C18/2 = 1954 and after O ring and is used with G3/1AS, C3/2 and C20/1
So the question is how can you differentiate the 1954 components of; clutch Shaft G3/1AS, carrier C3/2 and retaining nut C20/1 from the earlier versions which I assume are G3, C3 and C20 ?
Are there any dimensional differences ?, or pattern differences ? or other ?
Thanks in advance,
Richard