Engine cranked backwards by hand won’t start

ZoomZ

Engine should not throw out Cam timing because you turned it backwards slightly. If ti did, that's one shitty design. Only thing I can think of is, if you had loose parts in timing chain components. I can see a Timing BELTS slipping but not chains that go over gears. Not saying its imossible.

Anyway, the last human interaction with a mechanical object was with YOU and the clutch/ flywheel install. There is a front and back to the flywheel, and there are teeth that mate to a sensor for crankshaft position.

Check your wiring and re trace your install steps.