Rolling down the hill and dumping the clutch results in much higher RPM, overcoming the lack of compression from worn rings, or flooded conditions.
That is why running a 6 volt starter on 12 volts is such a popular option. The 6 starter will turn the engine over much faster on 12 volts than it does on 6 volts, thus increasing RPM and overcoming lack of compression from worn rings, or a flooded condition.

Carl

Last edited by 52Carl; 07/09/2017 1:48 AM.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission