Originally Posted by
R/C Ray
Wow, seems to be a lot of knowledge of DLE 35ra's out there. Here's one for you....my DLE 35ra is throwing the spark plug! The first time it looked like it just came loose, so I tighten the plug. The second time after about 15 flights the plug came out in flight sand took the treads with it!? Lucky to save the plane twice. I have it in a scale Spad XIII so it's not being throttled very hard. The engine is less than a year old, so I hope the warranty will cover the head.
Ray.
Very strange.....maybe a factory defect so it should be covered. On the other hand, DLE parts are not expensive.
BTW, the way I tighten plugs is to finger tighten until bottomed then wrench tighten +1/2 turn. There is a special "spring/lock" washer on CM6 plugs and if a plug is overtightened, the washer will flatten and not do its job