[ercoupe-tech] Bendix Impulse Coupling

[Jay Schumann]

It certainly sounds as if one of the impulse couplings has decided to go on 
vacation!  This usually doesnt cause any major problems as a started engine is 
running at a high enough speed to disengage the coupling.  Where it will give 
you a problem is if you try to start the engine on both mags.  If possible, 
start the engine on the mag with the good Impulse coupling. I would not be 
afraid to fly the airplane to your nearest mechanic, but repeated flights would 
not be recommended.  Jay Schumann A&P