Shown much of this before over the years and in all sorts of places - never before such a complete set all in the same place.
From top left. Re-engineered basket and re-engineered gear.
Bottom row from left. Re-engineered inner and outer plates. New high tensile setscrews to replace old rivets.
All other components can often be used again after fine check for tolerance and signs of damage.
New ground finish to hub of gear.
Where the new sharealike bearing - precision machined to match will run. - example of original finish to right.
Old rivet holes are drilled, tapped and counter sunk for new high tensile setscrews. Some copiers have drilled these oversize and used thread inserts. This weakens the posts as the basket is very thin where the posts meet the main casting.
Inner plate fitted to back of basket. Setting of exact position is done later after measurements.
Gear and Spring Set fitted. Position of each spring is key.
Dished Springs fitted. Look round the centre.
Fit Top Cover. Original case hardening is roughed up to ensure underside of the setscrews key into the plate. This area is often polished on older baskets because the loose rivets allowed the surfaces to fret as they chuddered.
Insert and tighten three high tensile setscrews and oil pump gear drive dowel.
Fit oil pump gear. The one thing that will only fit the right way round. Circlip can be fitted wrong.
Look inside to check component positions ready for damping deflection checks.
Measure damping deflection. Basket prevented from rotation while gear is rotated with increased loads.
Check the loading for each and observe the four phases of the torsion absorber working.
Strip after earlier test assembly. Adjust damping, deflection and phases based on measurements taken in above two stages.
Lubricate, rebuild, confirm adjutments are correct, seal to prevent moisture getting in and lubricant escape. Pack and ship back to owner.
This is by no means the complete process. Hope it gives some insight into the original sharealike re-engineered modification.
Only used approved transmission engineering and widely accepted methods for the work. Pays much closer attention to position and tolerances of each component than when new. These dampers can now be opened up and re-adjusted after the initial modification shown above. They can then be regarded as an easily serviceable item.
Well over three hundred modified like this running in bikes all round the world. Started offering to modify them to save owners fitting replacement baskets so they could rid these lovely engines of the chudder for ever. Enjoyed helping everyone sort out their bikes.