running rich does not cause dirt to get sucked into the engine...that is complete nonsense ! the only thing the leaking can do is cause dirt to collect, being rich doesn't make them suck it in..being lean causes them to suck dirt in.............. fuel is what seals these engines , when the tune is lean there is no longer enough fuel to seal and thats when the engine starts to suck dirt... the whole idea that leaking out the front causes them to suck dirt is 100% WRONG !!!! obviously whoever came up with this theory doesn't understand how these engines operate and how they seal themselves....

Think again I only had trouble with the one Orion engine

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

I know you only had trouble with one of those engines.It was just a trap to get you to admit that you did asked for help in the Orion thread.You say you did know any better but if you read ALL four page,Obviously you can see you were not that much of a noob,So your story dont add up.Look man,do what ever works for you,Is all good. http://www.rctech.net/forum/offroad-...gines-110.html http://www.rctech.net/forum/offroad-...gines-111.html http://www.rctech.net/forum/offroad-...gines-112.html http://www.rctech.net/forum/offroad-...gines-113.html http://www.rctech.net/forum/offroad-...gines-114.html

So would a 9853 or 9886 also be a good pipe for the Legend 4?

Or what woul be a good pipe combo for that engine?

Well if you also look the help I was asking about was a cody king wc engine, not my first engine. When I was asking for help this was after my first engine and after my seven gallon engine. My case ended up being cracked on the wc engine just like a tebo wc engine and another cody king engine that were all in Vietnam. As a noob I didn't ask for help on my first engine, I read and saw where it said for smoke, on my next engine I learned but with the Cody King engine it never ran right from the start and I was baffled and I had no support from my LHS or Orion. Instead of trying to "THINK" that you know me or trying to "OUT" me maybe you should focus on what my post was regardless of what happened my entire point was that running any engine overly rich is not good for it. But instead of you trying to out someone why don't you try to help someone.

I've had one Orion engine, the 24, and it was horrible. It never ran right for me, and I wasn't a newb. I've also seen lots of those Cody King engines on sale with 1-2 gallons over the years. I.e. there's possibly/probably an issue with Orion there if anything..(could also just be that they tune totally differently from what I and other people were used to..)

The three Orion WC engines I am aware of in Vietnam all 3 ran like crap and both Cody kings were tested and found to have small cracks in the case that we assume opened up when the engines were at running temp causing a vacuum leak leading to them not running right. The tebo engine wasn't tested so I am not sure on that one.

Hell yes....add a 41001 to see the full potential

ORION, another mystery brand like MAXIMA. non existent for regular customer.
...and orion not working except you´re a team member or whatsever..
a joke in my world.

That I do not agree.....

Running rich keeps the enging at lower temps and at lower temps the piston gets more pinch which will give wear on the piston to fit itself to that size of sleeve. Running with that same rich setting is no issue but running at full performance will give the effect of a worn engine.

That is also explaining the bad idea to break in an engine in the winter and use it in the summer.

agree, not agree, doesn´t matter because we didn´t made engines lifes longer because of pre-heating or something else magical treatment in the last 10 years.

2005 i had an RB WS7II, it ran like crazy for about 50 liters with 1 x maintenance.
no preheating, run-in made by me in the winter with zero skills about anything, bad tuned often.
best engine, lived long.

every brand/manufacturer has tolerances, 2 possibilities:
1) you got a good engine
2) you got a (more) bad one, which even at OS happens
3) nothin you do will change that

once i understood this, i stopped buying 500 dollar engines, because it´s no guarantee something will be better or holding up longer.

there´s 2 reason for preheatin:
fresh engines start made easier because of that pinch...
used engine warm-up time safer when you´re in a hurry at big races or something

So you did have problems with more than one orion engine...You think having problems with multiple orion engine,Set your theory in stone?You even say most all orion engine in vietnam dont run right. I am trying to help you understand that what you saying in GENERAL that running lsn overly rich in not going to kill the front bearing,This is not completely true.Some people do this,when they are ether breaking in the engine they run about 10 to 15 tanks and then you start to lean out,So that is why I asked you if you ran that thing rich the hold 4 gallons or You just never change a 8$ bearing.Is not that I trying to OUT you,Is just you are not trying to lisend at all what I am trying to tell you.You say,You say had One bad & good orion engine and that it,you discover some thing new.Think back of so many people that break in ther engines with factory setting (Two overly rich needles) and get 8 to 10 gallons on ther mills.Look man like I said,Do what ever works for you.

Thought this was a thread about the Rex Paloma? I just wanna see some feedback from anyone who actually ran one and hear the differences between the limited and the regular blue head one.
All you guys have good points BTW.