<VV> I don't understand this my simple short explaination

[Jim Simpson]

I can testify to that!  I have a turbo -- static advance is 24 BTDC -- and
I've broken a starter nose.  Hot day, battery a bit elderly and the engine
kicked back breaking the starter nose.

The other time I've seen a broken starter nose was on a PG car; they have
thinner ring gears and this one had lost a few teeth over the years.  When
the starter tried to engage, it caught on the worn and missing teeth and
cracked the noise piece twice before I helped the owner inspect the ring
gear.

Jim Simpson
Group Corvair