I have a new Precision Eagle 4.2 gasser and am haveing a problem with overheating even at 3000 RPM. I'm swing a 22/12 ULTRA prop at 6700 RPM at the top end and the engine over heats during flight and I dead stick in !!!! Not a good thing with a brand new Christen Eagle ll. I changes to a 22/10 which swings 7500 RPM on the top end and it runs even hotter. Using reg. gas and a 28 to 1 oil mix ratio. l can't find a phone # for the Mfgr. and have turned to RC Universe for help.. a Post or a direct E-mail with advice would be helpfull. Tns. Ken....The "BALSA BANDIT"

The outlet from the cowl should be twice the inlet..Run it richer....
Try it without the cowl if you think it's overheating..
If it stops from overheating in the air it probably damaged the piston...
Planes Plus was the manufacturer, Don and Karla Kanek....

I have since ran the engine without the cowl and it overheated 3 times at 3000RPM. I leaned it out a tiny bit on the high end and it did not overheat but it way too hot to trust in the air. The cowl is cut out plunty, and the air in / out ratio is 1 / 2 . does anyone have a web address for this Mfgr. or a phone # they can pass along to me. Tnx. Ken....The "BALSA BANDIT"

PLEASE READ the last line in the post above..Use your browser search function....
I USED mine...(Yahoo)
Planes plus aircraft
10233 Clow Creek Rd.
Plainfield, IL 60544
[email protected]
630 904 5075
Sheeesh...............