When do I have to clean my engine for storage/non-use. It has been about 2 weeks since I first used my engine (break-in), and I have not used it ever since. Should I have cleaned it. Basically, how long of expected non-use before I have to clean up my engine. What do I clean it with?

Also, people clean their engine after so many hours of use. I hear that anti-freeze is what people use. How many hours of use before I have to clean my engine. When I clean my engine, does that automatically mean I have to clean my carb, or do I just clean the combustion chamber? I really don't want to mess with the carb settings on my old K&B .45 Sportster. I had to take it to my hobby shop guy to have him set my carb. I hear it's one of the trickier ones to tune.

Do I have to do anything special after I put my engine back together from cleaning? Some type of break in procedure again?

Thanks in advance.

You do not have to take a motor apart to clean unless you have crashed, I use carb and choke cleaner to clean off out side of motor it come in airasol cans, watch and do not get it on painted part, then use after run oil and turn engine over to lube. the bearings and piston.
With anti-freeze you need to soak in cooker and you need to take engine appart and clean , dry and reoil and assemble . Carb. can be sprayed with carb. cleaner and not taken apart unless dirt in needle. You can also do a search on engine cleaning.

Ask this question of 100 modelers, and you'll get 100 different answers. Personally, unless and engine has been crashed, I don't clean them, nor do I use any type of "After Run" oils. and I've never had one go bad on me yet. (Except the one that layed out in a cornfield for 4 months before it was found )

That's all I needed to know. Thanks guys.

If you know you're not going to run it for 3 or 4 months (like over a winter), then I'd run it dry (burn all the fuel out of it), then put in quite a bit of light weight oil. Air tool oil, or sewing machine oils are good.

If it will be stored for a year or more i'd do the same thing, but remove it from the plane and seal it in a Zip Lock type bag.

If it's just sitting in the shop unflown for a month or so, don't bother. I agree with Minnflyer about after run oil too.
Dennis-