Bob,

That described behaviour on restarting agrees with my experimentation with the engine.

The trick, which I have found to be effective for hot restarting of both the 19-IV and 19-V, is either a healthy exhaust prime or choking/venturi priming to the point of flooding, then applying back flips.

My 19-V in particular seems to be easy to start by grasping the prop near the hub between thumb & forefinger, and applying a sharp backward flick. When treated in this manner, it will often cough, bounce of compression, spit a couple of puffs of smoke then slowly spool up in a nice miniature emulation of a WW-II radial engine starting. Fun!

Steve was present for a couple of these style starts when we were flying the 19-V in his black plane.

cheers,
Colin