Clutch toggle levers

[Dave Mann]

3psd flywheel with toggle springs fitted

Thats the way to do it Terry, without the mousetrap springs the toggle levers will fly out to contact the thrust bearing so it will always be spinning. Do not test run an engine on a stand without mousetrap springs and gearbox in place the toggle levers will attack the bell housing studs.
I use a spring from the oiler to a modified oiler cover plate to retract the thrust bearing

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I know the gearbox top is reversed, the unit is on it's transportation/storage stand and it takes up less room that way round.