Pee Wee 0.020 Igniter

Hello Martin

Welcome to the forum! We are looking forward to reading your stories with COX and other engines and modeling in general.

COX glowheads were designed to be powered with D cell size batteries of 1.5 Volts. You can always use D size batteries, 2 or 4 connected in parallel for longer service, but never apply more than 1.5 Volts to COX heads in order to prevent the glow head from getting burnt.

Standard glow plugs like OS are for 1.2...1.5 Volts and can be powered with the rechargeable and portable glow igniters used widely for larger engines. This, however, will not make a COX head glow orange, maybe dim red only, but still may be sufficient if well charged. These igniters fit and grab standard glow plugs but will have to be kept on the COX 020 head with your hand so engine starting is a bit cumbersome with them. You need a COX glow head clip sold on ebay or www.coxengines.com or www.exmodelengines.com

Alternatively you can connect COX heads to a starting panel energized by a 12 Volts rechargeable motorcycle battery, like those panels sold by Hobbyco on ebay. These panels have adjustable power outlet for the glow plug so make sure you set it to drive no more current than 2.5...3 Amps through the COX head.

If you are new to COX engines, make sure your fuel carries around 20% oil of which at least half or all should be castor oil. Most fuels used in glow engines nowadays are mainly synthetic oil based and COX engines will last very long if castor is in the fuel.

Good luck and share your experience with us.

András.