François Badoux wrote:

In the course of looking up the info on the oil pump I found some early flow data.

At 1000 RPM it is 5 liters a minute or 5.3 US quarts a minute.

or about 8 gallons per minute at 6000 RPM. This is a very early (1976) 13B so

perhaps later pumps pump more. Here is some stuff from the 13B Cosmo shop manual

on the pump.



You do need to line up the marks on the rotors with the marks on the housing.

Also the little screw holding the intermediate plate needs to be staked.



Here are some jpg's from the Cosmo manual. I'll send a copy of this to Peter.



Paul Lamar

Thanks Paul for the info.  In fact, we have the Mazda shop manual for our engine, it is almost identical to what you sent me.  I am just afraid that my
mechanics never opened it at the oil pump chapter!



Our pump has higher flow than the early model you mentioned.  We measured over 20gal/min at 6000 RPM, but that is without back pressure.  We are going to
install a flow meter online so we have this data in flight.



Francois

Yes I am putting a flow meter in the coolant circuit of the dyno engine I am working on.
The only way to really see what is going on.

Paul Lamar
 
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