General Cleaning Nitro Engine

[mooserider]

Hey all, I have an older OS Fx .46 ABC engine that I want to use again. When I stored it, put some 'Marvel Mystery Oil' in it, and put it away (maybe 15 years ago). I pulled it out now, and couldn't turn it by hand surprisingly. So I pulled it all appart, and got it turning by pushing down on the piston and cranking the shaft. If I had a prop on it, I probably could have got it with the extra torque. But, it still feels like a heavy glue or honey when I turn it, so I want to clean it out since I already tore it apart.

My question is this, is there a better way to clean it than what I use to do years ago? Which is basically soaking it all in nitro gas and cleaning it with Q-tips? Also, I assume I should use a little oil when putting the metal to metal parts back together to make a good seal?

Thanks for any advice!

 

[Tony]

I use carb cleaner to clean this off. I have quite a few old engines like this. All you need is something that will break up the thick oil. So anything from WD-40 to carb cleaner to very hot soapy water (dry it with air afterwards) will do the trick. And I use Transmission fluid to lube the engine parts. It's nothing more than 10w oil and works great to keep metal to metal damage.

 

[mooserider]

Awesome, thanks Tony! Can't wait to hear it run again! Gonna go at it tonight and get it nice and clean.

 

[mooserider]

BTW Tony, people say that when you take them apart, the never run the same way (taking off the back plate and the head). I'm guessing I should treat it as a new break-in when in run it again?

 

[Smoggie]

I'm guessing I should treat it as a new break-in when in run it again?

Only if you have replaced the liner and/or piston.

 

[falcan]

would oven cleaner spray work, when done spray CRC in there and some oil help would that work

 

[Tony]

I would never use oven cleaner on an engine! You are dealing with soft metals, not steel and ceramic that ovens are made out of.