@Skibidoop Its when the ignition was all the way retarded, when he advanced the ignition the popping went away for the most part, so I'd say a combination of low-rate valve springs from low rev range and perhaps the external pushrod valvetrain that has no valve covers to dampen valve sounds.
Some early tractors and aeroplanes had that starter also. You had to crank the initial flywheel up to speed and then engage a clutch to see if the engine started. If it did not, you choked the engine and cranked up the initial starter again. They sounded like in the cartoon when Wile E. Coyote started building up the Rpms on his legs before taking off after the roadrunner.
Wow, very nice and definitely cool. The inertial starter flywheel seems a bit light weight. Maybe adding more weight to the flywheel will help kick it off with fewer attempts. Still, it's simply awesome! Fantastic work!
I replaced a cylinder head gasket on an old Ford tractor that started with a shotgun shell or with the inertial starter. The shotgun shell was much easier to start the engine but I had none. When I was cranking up the starter, it sounded like Wile E. Coyote when he was winding up his legs to chase after the roadrunner. The engine on the tractor was a larger inline six engine. But the inertial starter had no problem starting the engine once the rpms were up from cranking it.
That's freakin Awesome stuff my man!!! Wow it even sounds almost identical but a little light on the enertia weight it seems but otherwise it does the Job beautifully! 👏 👏 👏
Very Very VERY Cool!!!! If I had the funds I would have you build me one to put on a Plane....Now to see this beauty in a WarBird. Perhaps a Fw-190 would be a good Bird for this Engine?
I thot it was always advisable to shut off the fuel and let the engine "die" that way, so that there could never be any possibility of any later prop "motion" . Safety!
