[Healeys] Why carry spares

[warthodson at aol.com]

Just to be clear, it is not necessary to run both pumps plumbed in parallel at
the same time. The SU's have check valves in them.
Gary Hodson


From: BJ8Healeys sbyers at ec.rr.com


Two pumps in series might not be suitable for a racing Healey, but they have
worked just fine on my street BJ8 without any problems for a long time.
It's just simpler to plumb them in series than in parallel, in my opinion.
If you have two pumps in parallel with separate switches, then you can run
both pumps at the same time and get twice the flow rate at the same output
pressure.    Running two pumps in series at the same time will provide the
same flow at double the output pressure - not good for the carbs.  So, for
pumps in series there  should be only one switch to prevent running both
pumps at the same time.



Steve Byers

HBJ8L/36666

BJ8 Registry

AHCA Delegate at Large

Havelock, NC USA