"Jeff Burke" wrote in message
...
On Tue, 28 Aug 2007 22:53:30 -0700, "Calif Bill"

wrote:

If it does not have the little door to externally adjust the points it is
OK. It will be a closed cap.

Some Chrysler caps had a vent hole, not all.
Aren't boats with inboard engines supposed to have exhaust blowers to keep
the
engine compartment clear of fumes? Don't these vent well enough so that a
spark
isn't a problem? I ask because I don't know.

Engine compartment blowers should clear the fumes, but if someone neglects
to run it long enough, the spark can exit the hole in the cap. Insurance
may be void.