1.a Norton SOHC Vertical Coupling and Bevel Parts

This is the Oldham Coupling that is fitted to all SOHC engines as part of the the vertical shaft assembly.  Two of these are required per engine, and we sell them in various thicknesses.  This listing is for the Std 3/!6" thickness version.  See main listing description for further detail of fitting and thickness required.  Price is 'each'.  New Batch Back In stock: April 2024

This is the Oldham Coupling that is fitted to all SOHC engines as part of the the vertical shaft assembly.  Two of these are required per engine, and we sell them in various thicknesses.  This listing is for the none stanard type for different complression ratios - which we can offier in various thicknesses.  See main listing description for further detail of fitting and thickness required.  Price is 'each'.  Update Apr 2024: All sizes now back in stock - and 0.240" extra deep tang now available

This is the steel collar that fits over the shaft at the end of the top or bottom bevel, its purpose being to contain the Oldham Coupling that fits into the tang at the end of the bevel gear shaft. Standard shaft diameter fit, see listing detail for more information.  Price is each

This is the steel collar that fits over the shaft at the end of the top or bottom bevel, its purpose being to contain the Oldham Coupling that fits into the tang at the end of the bevel gear shaft. This version is one thou (0.001") undersize on original fit, as the original shafts can vary fractionally with wear and usage, see listing detail for more information.  Price is each

- This is the very important twin row, self centering bearing that was originally fitted in both top and bottom bevel housings in all International and early Manx engines. Now obsolete and unobtainable - Jan 2024:  A new small batch just in! - See detail listing for more information

- Single row (fixed race - not swivelling) RHP bearing, that can be used as an alternative to the original type twin row type (Item no 0005) on the top bevel housing only.  See detail description for this item and description for item 0005 before purchasing

- Essential when rebuilding your engine to ensure that the lower vertical bevel gear has the correct backlash and position in relation to the crankshaft bevel gear, these lower bevel shims fit between the timing case housing and the lower bevel housing. This is for a complete set of 5 shims in the following sizes :

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

- Essential when rebuilding your engine to ensure that the lower vertical bevel gear has the correct backlash and position in relation to the crankshaft bevel gear, these lower bevel shims fit between the timing case housing and the lower bevel housing - Fitted in conjunction with the timing case shim, the ideal positioning is acheved when the gears are in line and there is a just perceptable gap (backlash) between teeth. - 

Available in the following 5 sizes : 0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

Note: if buying individual shims, please state size when you place the online order, thanks. Update Feb 2015: Now back in stock again

- Essential when rebuilding your engine to ensure that the upper vertical bevel gear has the correct backlash and position in relation to the camshaft bevel gear, these upper bevel shims fit between the cambox shell casting and the upper bevel housing. This is for a complete set of 5 shims in the following sizes : 

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

- Essential when rebuilding your engine to ensure that the upper vertical bevel gear has the correct backlash and position in relation to the camshaft bevel gear, these upper bevel shims fit between the cambox shell casting and the upper bevel housing - this is for single shims available in the following 5 sizes :

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.