<< Lynn,
 >
 > You're one of the fortunate ones.  Somehow, my CO never gave me a week in
sick bay and it will likely be impossible for me to return to "ship shape and
Bristol fashion".  Yes, I'm doomed. <G>  However, looking at how well I
diagnosed Francois' problem, maybe there is hope.
 >
 > Charlie "Ignored by real rheologists" Smith
 > KIS Cruiser 4021

Nobody is forced to "loose face" over there so they stand by their bad
engineering for years, never admitting guilt. The phased rotor pump is quiet, and is
probably what they were after but it exposes the oil to two more sets of
sharp edges trying to fill the
front rotor, and get oil back out. While the wrong oil surly does make things
worse, it is the pump that is poorly thought through. When I ran the internal
pump, I could get 90 pounds or so at the start of a race, but could maintain
only 80 PSI or less, by race end.

I was thinking that the partition should be removed. It should be replaced
with a blanking plate with a hole for the shaft and one in the edge for a
locating bolt.

Put both rotors together at the rear of the shaft and have them in line, not
phased.

I bet the pump would be dynamite. More oil, more oil pressure, mostly stock
parts.

You would need to mill a new key slot.

Lynn E. Hanover

Bad engineering? Not on your life. They make the best cars in the world bar none.

I am still not convinced that Francois had a real problem at only 6000 RPM.
You are running nine or ten thousand RPM. 
Perhaps the pump he had was damaged. I'll believe it when I see somebody else 
get the same results with a similar test rig. After all he changed the 
pump to a new  93 version.

I suspect the oil pump is bought out by Mazda just like they buy out the oil 
metering pump from Mikuni. BTW Diamond Engines also uses the Mikuni pump.

Why don't you use the Mazda Racing dry sump gear pump for road racing Lynn?
Here are some more shots of it. Surely you would be happy with this?

Paul Lamar
 
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