Has anybody seen any evidence of oil pump cavitation
at RPM's greater than 4000 RPM?

-Richard wrote:

Since the oil pump is a displacement devise, it can not cavitate, in
principle. However, if the intake is restricted to the point where the
suction pressure is getting low enough for the oil to boil, it can show
symptoms comparable to cavitation. Is that possible? I don't know. It is
certainly easier to create cavitation in a restriction on the pressure side
of the system. We used cavitation for fuel flow control by inserting ventury
restrictions in the fuel line.
May be I am overlooking something here.

Richard Sohn
N-2071U
unicorn@gdsys.net
www.gdsys.net/WWWmembers/unicorn/- 

Richard can you set up a stock oil pump and see if it can pump clean oil
with out air at 6000 RPM? We have had one report wherein it was claimed
the output of the pump was converted to froth above 4000 RPM.
I find that highly unlikely but it won't hurt to check.

Paul Lamar
 
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