flyrotary@lancaironline.net Mailing List Archive

Hi Rusty, Six weeks ago I began a one week project to change the oil cooler system on the RV-3. Wanted to remove the large oil cooler, install one about 60 percent as large(RX-7 oil cooler) and redo the ducting for water, oil and engine air. While I was at it I decided to send Tracy my EM2 to have him change the display to the LCD display. Now I will not have to fly into the sun to gather flight test data! All of the planets and moons lined up today and I was able to do an extended ground run. Unfortunately, I did not make a similar run on the old setup before dis assembly to compare with but I am pleased that the temps will cool at lower RPM after a power run. Maybe you can remember some similer ground runs, Rusty. The OAT was 69F today. Wind calm. I ran the engine at 2350 for 10 minutes and the oil and water temps both finally stabilized at 170F. Went to 4550 for four minutes. Temps went to 190F but probably had not stabilized. Pulled back to 2550 and in about 3 minutes the temps were down to 175. Full throttle gave 6359 rpm. Let it cool down to 170 again and shut down. Have small oil leak and two hot spots on the cowl. Should have those fixed by noon tomorrow and then off into the blue. Some photos attached. Regards,Rich __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

Ducting for oil and water.jpg

Engine Air Intake.jpg

Right Profile.jpg

Left Side.jpg

Mazda Oil Rad.jpg