Engine issues

Radio Control Car Action, Apr 2003 by Reed, Steve

ENGINE ISSUES

After I've driven my nitro truck around a nearby construction site for a few hours, the engine starts to run erratically. When I first get there, the truck runs great - no problems. After four or five tanks, though, the engine dies for no apparent reason. At that point, I have trouble starting the truck and keeping it running. I clean my truck really well after every outing and thoroughly inspect everything, and I can't figure out what's arong. What the heck is it? [email]

Steve Reed

The first thing you should check is the air filter; you would be surprised at how gunked up it can get. Take it apart, and thoroughly clean it. You can also try using a larger air filter if you are not already running one. The ones that come stock on most 1/10-scale trucks can be replaced with a larger filter from a .21-- size engine. When the larger filter gets dirty, the carb will still be able to take in enough air to allow the engine to run properly. Also, check the brass nut that secures the fuel-feed tube and high-speed needle; if it's loose, it may cause unwanted air leaks. Last, check the carb to make sure that it's tight. You should not be able to rotate it, but if you can, tighten it; air can enter here, and it will change your engine's fuel and air mixture and give you all sorts of problems.