K&B 4-stroke glow plug

Model Airplane News, Nov 1998 by Chianelli, Chris

For years, I've been passing hints in the direction of domestic manufacturers that they should produce a dedicated 4-stroke plug. The O.S. "F" is excellent for 4-stroke engines, but because of international tariffs on platinum, it is also expensive. K&B has taken a very close look at the special glow plug needs of 4-strokes and, in particular, it has worked on ways to keep the glow element hot during the intake cycle, during which the fresh charge of incoming fuel mix can over-cool the element and stall the engine. On K&B's new Four Stroke Special Length plug, an extended tip brings the element closer to the center of the combustion chamber, and that element is made of heavy-duty platinum that has been specially alloyed to ensure maximum heat retention (thermal conductivity). Add to this that the element's diameter, coil shape and number of turns are specific to 4-strokes, and you have a plug that was engineered and optimized for a single purpose-obtaining dependable performance from a 4stroke engine. A few very reliable and unbiased sources have already related excellent performance. Rumor has it that the price will be about half of what we're accustomed to. Stay tuned for more on this exciting news.

K&B Mfg. Inc., 2100 College Dr., Lake Havasu City, AZ 86403; (520) 453-3030; fax (520) 453-3559.