> I'm trying to do this all with the pump still attached to the
> engine,
My suggestion would be to go ahead and remove the pump from the engine, so
you can be sure it's assembled correctly.
> So maybe the check valves are fouled? How can I test?
With the top off the pump, you should be able to blow into the inlet past
the check valve, but not suck. At the outlet you should be able to suck
air, but not blow.
> Or should I remove and blow out with low air?
I would test first.
Randall
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