Originally Posted by
Maximo
Do you even understand how silly the concept is ? that if you run too much lubrication thru a open bearing that your going to somehow blow it out ? like there is some sort of magical seal in the bearing and too much fuel inside the engine is going to create so much hydraulic pressure that it blows the seal out of the bearing ?
on engines that I block the bypass they leak out the bearing like crazy, yet no dirt ever gets in.......in fact as long as its leaking I know there is enough fuel to seal the engine and it wont be sucking in dirt...sucking in dirt comes from the ring seal running dry and being unable to maintain its seal..........100% opposite of what you guys are telling people ! your telling people being rich kills bearings when in fact its being lean that kills the bearing..being lean is what causes a engine to suck dirt thru the nose
Neil, you said that running an engine rich does not hurt it. My point is that if you run it rich that fact can/does cause issues that can/will harm an engine. If you run the bottom rich you are probably running the top too lean, if you run it rich and get the fuel all over the bottom of the engine it attracts dirt, then if you run it out of fuel (run it lean) it can suck up the dirt. Maybe running it rich in itself would not hurt anything but the issues that come with running it overly rich can and do hurt engines. This is why I had issues because I had read that running it rich didn't hurt, and that it should have good smoke. Well my first nitro engine I ran rich because of what I read, just like your comment that it "won't hurt anything" and I got 4 gallons out of an engine, well when knew better on the second engine I almost got twice the time out of the engine, not to mention better run time up from 7 minutes to 10-11 per tank. So not only did I almost get twice the gallons out of the engine I got countless more minutes of run time as well. Telling someone that it won't hurt the engine is not telling the whole truth which is misleading. I mean I don't think I am the only one who has ever ran an engine out of fuel, and right before you run out it gets lean as hell and as you even said that when it gets lean is when it might suck in the dirt, so... running it rich puts dirt in an area of the front bearing that if you run it out of fuel will allow it to suck in dirt shortening the life of the engine, thus running it overly rich can/does shorten the life of an engine and is not good for the engine