Well I bought a Superstar and it came with a OS LA-40. Well after I bought it i put together at the store then took it to the field. At the field I got an instructor and we were flying and I was doing really good. Well we were going thru the last exercises and he was showing me how to line up with the runway for the landing and when he was showing me the controls go dead. Turns out they hadn't charged it good enough at the LHS and it went down and made a very large crater in the ground the plane was completely gone and I bought a new one with no engine or anything. The instructor didn't really care about what happened he just piked it up put it on some table and went to the pit area didn't even say anything.

Well after the crash my engine (OS LA-40) was a clump of dirt and I cleaned it out real good on the outside then took some glow fuel and washed it in the glow fuel my dad did it actually I'm only 13 but I'm concerned the dirt got deep inside do you guys know of any other ways I could get the dirt out and clean it out is there a special oil or something to run thru it maybe? I would appreciate all responses.

I've done the same thing about 3 times with my trainer, back in the day. I did this when I was 14, so I think you should probably be able to do it also. Take everything apart, making sure you remember exactly how it goes. Take the parts and individually rinse them in some glow fuel, dry them off, the re assemble them and put after run oil on all the moving parts while you assemble them. Just be careful, the screws on my head striped out, you need to grind down the tip of a screwdriver to make it more blunt, otherwise, with a pointed tip not enough of the screwdriver can grip the screw and it ends up stripping out. The whole thing is pretty easy to do, just remember to give it a good squirt of after run oil before you seal it back up. Have you dad sit with you also, because at first it's hard to figure out how to get the connecting rod back on the crank. When I ripped mine apart, there was lots of dirt inside, so it does it some good. Unsure if you can understand all that rambling from one thought to another, but good luck.

Alex

Personally, I'd try to avoid stripping the engine down if possible, but it depends on how far in the dirt got.

I've dunked an OS 25LA in the dirt a couple of times, all I did was to brush off the dirt from the outside and remove the carb.

I washed the carb out with denatured alcohol. The one thing I forgot, and what you need to do, is to take off the remote needle assembly and rinse that through too. After washing the parts out, use a can of compressed air (dust remover from Radio Shack or smilar) to blow through the needle valve assembly and carb jet.

If you washed it off before removing the muffler, no dirt should have got into the exhaust area, so you shouldn't need to remove the head.

You might want to take the plastic back plate off and see if any dirt got into the bottom of the engine, but I'd try not to interfere with the piston/liner if possible.

If you do have to take it apart, mark the back side of the rod with an X and scribe an arrow on top of the piston pointing toward the exhaust port. The rod has a chamfer on the back side where it goes on the crank and if you get it on back wards, it will seize up. The piston will have wear on it, and you want to get it back in the same way it came out. I hope you find this helpful.