Tank Testing

Here’s how to detect leaks before you install your fuel tank: plug the vent with a short piece of fuel line and a dowel or a rivet, then pressurize the submerged tank by blowing into it or by using a cycle pump. Bubbles coming from around the stopper or the brass tubes indicate a serious leak, which must be fixed before fuel contaminates your radio. Adapted from 400 Great R/C Modeling Tips by Jim Newman,...