ben1000 Senior Heliman Location: Gilbert, Arizona
| Howdy...
I have an OS61 in a Raptor (brand new engine). I've been breaking it in, and trying to keep it cool. I've read posts about folks keeping their engines really cool.
I'm using 30%, and have the engine SOOOO rich that it makes that '4-stroke' like sound all the way up to 1/2 throttle, smokin' like a chimney.
When I shut it down, the head is still too hot to touch. Is that normal? or should it be 'cool'? I heard 30% was cooler than 15%, and it's so rich that the gas tank is being used WAY faster than normal. Should it be so hot that it's hard to touch?
The Raptor has an aluminum fan, but all I was doing was hovering (so not too much airflow). At the same time, I was never above 1/2 throttle.
The instructions suggest that a long break-in is not necessary, and that all you need to do is run a little rich for the first few tanks. I've read other people who suggest much longer break-ins (like running a full gallon super-rich), and yet the instructions don't tell you to do that.
Sure appreciate your input on this.... Thanks for replying
Regards,
Ben
ben1000@mindspring.com |