ORIGINAL: MetallicaJunkie
the cowl is not removable ,that why i need to know how to do this
This the most likely reason Metallica wants to tap since he has no access to the bottom of the engine and beams to hold nuts.
This type of cowl at one time was common for many RC Sport planes, controlline stunt airplanes and virtually all RC pattern planes. his cowl is likely similar to the one in this airplane with no bottom side access.
Actually my preferance for this are Specifically Dave Brown mount like this one round at the firewall requires much less space, far easier to install than the so called adjustables and the included sheet metal screws work very well with less tendency to work out of the glass filled nylon than threaded metal where thread lock is a good idea.
John