that can be made to improve the stock pump and components.  The large sized
     > pressure sections for both gerotor and gear types, have high pressure pulse
     > peaks, and as a result, are very noisy. The Mazda pump has two shaded sections to
     > cut down on noise. You can install a new Mazda pump by removing the front
     > cover. Use a new chain and pump. Drill new attachment screws for safety wire. Pack
     > the new pump with clean bearing grease, so it will prime instantly. The stock
     > pump is fine up to about 7,000 or a bit more. The only problem at or above
     > this is the pickup and bug screen cause oil foaming.  And you can fix that too.
     >
     > Lynn E. Hanover

Lynn,
 Have you or any of your friends got any experience with the Barnes pumps?
They have a nice LOOKING lobe style pump that I am interested in. Thanks
for any info you might be able to offer. One last question. If I remember your
oil cooler comments you run coolers on the two scavenge sections and one
on the pressure section? Am I correct here? Thanks again.
Bill Jepson

 
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