neville thomas

My Feedback: (3)

do any of u guys know the be oil ratio mis for a sachs 4.2 and what are the best prop to use for scale flight airplane is about 30 lbs?

flyinrazrback

My Feedback: (69)

Back in the day, I ran a 24x10 on my sachs 4.2 (was on an ace 33% 230), and I believe I ran 50:1 oil, I cant remember which brand though. Any of the good oils should be fine.

bubbagates

My Feedback: (32)

I specifically cannot answer the question but if you already did not look here is Air Hobbies web site. A quick look did not find it but maybe you could send an email to them

http://www.aero-sports.com/airhobbies/

Also. I think Ralph Cunningham works on these engines you could send him a PM. He's really good

RCIGN1 is his member name

BTW...that';s a gorgeous plane

Tired Old Man

My Feedback: (1)

Using the same plane as Flyingrzrback, but with a Precision Eagle Husky 4.4 conversion, I was using Motul 800 and Redline synthetics at 50 and 60-1 after finding that 32 and 40-1 was sticking the rings. The Sachs is on the same line as the Husky. That's been awhile, but the engine is still in good running condition with plenty of compression.

neville thomas

My Feedback: (3)

thank u very much bubba i appreciate all the help i can get ill send him a pm and i cant wait to fly the hurricane hopefully this weekend. thanks again

neville thomas

My Feedback: (3)

thanks to all who gave me the info on the gass oil mix your help is greatly appreciated hope i didnt leave anyone out

Collinba

I have a Sachs 2.4 that was reconditioned (crank straightened) by Brison and they were specific about using a 60:1 mix as the sachs has a special alloy piston that requires less oil. They figured by using a standard 32:1 mix I was losing between 600 and 1000 rpm.

Barry