One the subjects that we on the group never got round to discussing was the
matter of compatibility, between parts in particular but also in general for
things like engine accessories, air cleaners for example.
Back in the 1920's and 30's there were not many suppliers of things like air
cleaners, so makers like Lister didn't fit them, full stop. Later on, there
became available a few makes of air filters and oil-bath cleaners which turn up
across a range of engines but never seem to have the connection made.
Injection equipment is another area where a lot of parts are exchangeable, with
the obvious exception of things like pump elements and nozzles and maybe
delivery valves. Of what is left, nearly all are common parts across a range of
engines. The BPF1B pump for example, has almost 100% commonality of its major
parts across a range of UK and overseas engines, only the element, rack and
housing change much.
Magnetos are another area in which a lot of the major parts from a series are
common, with just a minor set of things like mountings and drives being
different. This may not be as fruitful a source of bits as some may like, but
the BTH mags had a basic range which was modified to suit a specific
application, same with the Wico A series which was probably the most-fitted
magneto in history.
Carburettors have their foibles but the Solex and Zenith ranges have many coomon
parts as with the items listed above, albeit needing a bit of research.
Spark plugs we know about generally, and personal preferences/experience seem to
guide what is used as much as the original makers recommendations!
Maybe I'll get a listing together of such bits and pieces one of the days and
see how much stuff we can find.
Peter & Rita Forbes
Engine pages for preservation info:
18 years ago