Hey Ernest;

Looks good, but...there are a few things to consider with this mod from Lynn.
Pro:  Improved oil flow and cooling
Con:  Any debris can kill the engine

Any (oil pickup) bolt, bearing debris, or general crap poured into the engine can lock up the oil pump.
I know of 1 car engine that died after Lynn posted this mod.
Cheers
Cary

On the other hand, it is not a common practice to drop crap into oil sumps. And the stock screens quite often pass slivers and shavings that fracture the pumps. Even so the drawing was published with the bug screen in place, in fact the drawing shows the screen and anti vortex plate from a Ponitac, as the Mazda screen would be too small even for a garden tractor.

 

This came about after a long thing about Mistral overheating their oil. They took off the bug screen, and ended up making their own pickup from scratch. With a much improved outcome. They had no screen on the new pickup. The screen covered the drain-back hole in the surge plate (Baffle plate) between the engine and the pan. A few powerful magnets around the inside of the pan may save the day for you. Such magnets are available inside discarded microwave ovens. Please, no comments that several microwaves have failed after Hanover published his magnet idea. If you want smaller magnets they are used in outrunner model plane motors and as clamps for hatches from model supply houses.  

 

I have uncovered 3 fractured rings in stock pumps in engines with the bug screen in place. None had died from oil pressure failure. The fractures had smoothed during operation suggesting that the engines had run for good long times in that condition. The guts are made of powdered metal. You can break those pumps in a cold start. They are absolute crap, just like all automotive pumps. But they are good enough if you think about what they are. The racer has a giant 3 stage dry sump pump, and it even has powdered metal gears.

 

Loosing oil pressure does not hurt a rotary. Operating the engine at length with no oil pressure hurts a rotary.

 

Lynn E. Hanover