Horizontal oil cooler - evac

[rjcthree]

I have my oil cooler firewall mounted, it's about horizontal. How do or I evac the air from the cooler as I pre-lube the engine? Or am I looking at this too deeply? Rick 90432

[pierre smith]

...and we simply ran the engine with the starter and the top spark plugs removed. It purges the lines and cooler pretty quickly.

Best,

[frazitl]

I questioned the Pacific Oil Cooler owner at OSH a couple years ago, and he said the same thing. Oil, especially cool oil has a much higher viscosity than air and will purge a cooler in any orientation.

[rjcthree]

Thanks guys! Rick