So to the starting system.
I wanted to save weight and also to remove the large alternator.
Then I remembered the good old GT185 with its Dynastarter, basically a DC generator and a starter motor that uses two coils, one for each.
If it is usable I save......starter motor, alternator, starter clutch and a few bits and bobs.
Doing a rough look at the starter watts it seems to be around the 750 starter power.
Tricky bit is it fits on the LHS where the timing goes. First step find a self generating race ignition that fits on the RHS. Quick internet search and they are available (more later).
So how to graft the rotor onto the crank as they have different tapers?
I made a 'taper adapter'.
Basically a different inner and outer taper with an internal and an external woodruff key.
Tada the rotor fits.....
and the stator kinda drops on but casings and mounting are the issues.
So I made a spacer plate to bolt to the crank cases and sandwich between them and the engine casing. This provides the stator mount.
Obviously I have to shape the outside of the plate to match the casing......later
Next make the casing fit the assembly. Luckily the standard kettle casing is way large, so I sliced a section out and bored out the central ignition mount area.
I then had to make up a spacer guide to fit round the rotor brush area to make sure the stator when located on the backing plate stays central. With that in place I can drill and line up all the casing and stator mounting holes.
With that done and the old front section of the casing weld metalled on again, I have a new shorter GT casing that tales the old chrome cover......Nice!
Minor fettling left then ready for a test fire!! Fingers very crossed.