So the small bowl and pickup is not a priming tube
.
Hello
nath and
powerclocksMany thanks
nath for the technical information.
You explained this very nicely. Thank you.
I better clarify my comments then...
It is not incorrect to say the pulsa-jet has a priming function;
in the same way that a fuel pump has one.
Another understanding of priming is that a
primerinjects a fuel charge into the cylinder. I did not mean that here.
'Priming' is just a word signifying 'getting ready or being
prepared'.
When I worked for
Briggs & Stratton I would always differentiate
the two meanings about 'priming'.
The old 'ticklers' on vacu-jet carbies [like the old Victas] primed
the carby, but did not prime the cylinder. The understanding was that
a primed carby was more likely to start than one lacking fuel.
The Briggs Pulsa-jets avoided the problems of a totally vacuum-drawn
mixture, and the issues associated with half-empty, or near-empty fuel tanks.
It is for this reason that Vacu-jet carbies always had smaller tanks!
By providing a constant fuel level, Pulsa-jets were always primed
to do their job. Brilliant!
---------------------------
Jack
