Welcome to Remote-Control-Hobby Discover the whole new world of RC Cars in this remote-control-hobby site with many interesting articles. Our #1 Online Shop for electric and nitro gas cars at the lowest Price / Highest Quality possible with 100% Customer Satisfaction.
Nitro engines use a glow plug igniter connected to the battery supplyfor starting up. The batteries supply the power to glow the plug. Oncethe required ignition is provided the glow plug willll continue to gloweven though the batteries are disconnected.
If you want the nitro engine to tune-in properly it is necessary to knowthat the heat of the glow plug can alter the combustion timing. If thisheat is not properly set the engine may never be fine tuned. Further, aglow plug can burn out prematurely if you over heat it. They have anunpredictable life span. It is always safer to use the brand themanufacturer has specified in there guidelines or users manual. Thisway you can have a glow plug with a longer life span whose usagepattern is described and you have ready help to refer to.
If your engine runs fine but quits later once it is unhooked from thepower plug this means then its time to replace the Glow plug. But onthe other hand if the engines revs down after you remove the powerthen the glow plug is fine, the engine needs either more nitro fuel or ahotter plug. The small science behind the whole game is that a hotterplug will typically advance the ignition point while a colder plug wouldretard it.
Keeping an eye on your glow plug will help you to understand how youshould adjust your carburetion. Take the glow plug out and look at thecoil element and if the spiral is a little bit pressed and bent it meansthat the engine has too much compression. If you are racing on a sealevel track, with 25% or more nitro this could be the main reason.Then you need to check under head shims and insert a tenth. If thecoil element has a dull look, as if it were sanded, it means that thecarburetion is too lean (lack of fuel) and you can damage the engine.You run the risk of breaking the coil element and making it fall downon the top end of the piston, damaging the piston/sleeve. In this case,you should replace the old Plug with a new plug and richen the HighSpeed needle 1/8th. If the thread has a dark color and the plug seemswet, the carburetion is too rich and the engine isn't running at optimalpower. You have to lean the carburetion, closing the High speedneedle. When the coil element is polished and the spiral does notpresent any imperfections, your engine carburetion is most likelyadjusted properly.
Manufacturer models of glow plugs always come with help or featuresdescribed for their glow plug which comes in handy while tuning theengine.
1/10th Nitro
