Quote:
Originally Posted by rotorwrench
The starter engages the bendix as soon as it starts to turn. The centrifugal force with the spiral teeth on the gear shaft pushes it into the ring gear. The solenoid only functions the starter motor. When the engine fires, it can kick the bendix back out prematurely. Now it is normal for the bendix to kick out when the engine fires but if the engine has a fuel delivery problem, a weak spark, or a vacuum leak that can't carry it though the start cycle after the bendix has already been disengaged then the starter will overrun the bendix and you have to wait till it stops turning before another start attempt. If everything is working well with the engine then it will complete the cycle with a lot more reliability.
On 12-volt, it just turns a lot faster. It can still disengage prematurely though.
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So what kicks the bendix out is the engine turning faster than the bendix gear, so on 12 volts the engine would have to turn a lot faster to kick the bendix out . The point I'm making is that 12 volts on a 6 volt starter will not cause the bendix to kick out any more than it would on 6 volts.
Bill