Nitro Engine Rust Prevention
There’s a simple way to keep the inner parts of your nitro engines from rusting. When you’re done running the engine, empty the fuel tank and run the fuel in the lines through the engine. Then remove the glow plug and air filter, and spray a little WD-40 into the engine. Turn the engine over a few times to spread the lubricant through the engine to coat all the parts. This will keep the bearing and crankshaft from rusting.