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Al,
here is some more info on the OMP oil
feed.
Oil is coming into a recess in the pump drive
shaft. The thus formed cavity has a relieve hole as shown in the pic, making the
pressure in the cavity practically even with the crank case pressure, depending
someway on the flow rate. The roll pin in the relieve hole is to make sure there
is no air pocket in the cavity, which is connected to the pump
intake.
Each out put is driven by a separate piston
and two are together per stroke. Each stroke is
small enough not to create a problem when you block a line off. It
Would not hurt the pump if two outputs are connected for double oil
flow.
I hope it is clear, and not confusing.
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