It was probably made somewhere in India!


"FREE SAMPLE"

I will be sending it to Ted for testing so as long as he is comfortable using it, we will have some real world functionality info about it.
It could be that the bean counters wanted it cheaper.  It could also be that the factory design is overly complex.


Lawrenceville, GA

Did you modify it for the screw in plug or are going to test it with the press in?

I haven't made any modifications, yet.


Lawrenceville, GA

I did find out some of the back story for the iron gerotor oil pumps that use the check ball for the bypass rather than a piston.  Those pumps were made specifically for the military as there was an issue with the oil relief valve pistons ‘sticking’ when the engines set up for extended periods of time.  The use of a ball fixed that particular problem.
 
Charlie.  I am getting closer to performing a full blown oil pump test on the dyno mule which will include your ‘ball relief valve’ oil pump.  Driving this upcoming dyno test is the development of a new oil pump for the Y.
 
There is a new oil pump for the Y being designed as we speak that will incorporate what is called ‘paddle wheel’ technology.  That new pump is also incorporating a spring loaded ball instead of a spring loaded piston for the relief valve.  The 'paddle wheel' technology is already being used on some specialty oil pumps for other applications and that new technology has solved some of the issues with the normally slow exit speed of the oil when using spur gear oil pumps.

Lorena, Texas (South of Waco)

Along the lines of this subject I have a question. Ted has an article where he fabricated a hi volume oil pump for a Y. My question is since finding a Gerotor pump is damn near impossible can you use a Melling Gerotor rebuild kit and use it in the spur gear housing?

Dave

No, gerotor and spur gear parts are not interchangeable at all.

John - "The Hoosier Hurricane"

Dang. Thought I had something there..

Dave

Where can I find info about "paddle wheel" tech?


Lawrenceville, GA

Try this link for some more detail.
https://www.aa1car.com/library/oil_pumps_high_flow.htm 

Lorena, Texas (South of Waco)