Never fail to remember to re-seal the gearbox with RTV right after you have discovered the correct blend. Even however they’re referred to as “gaskets”, they won’t seal your gearbox on their personal.

If almost everything seems normal, attempt changing the gear-mesh. This is carried out with the mylar “gaskets” that sit among the primary gearbox circumstance and the input/output caps. Try adding or removing some of these spacers until finally your gears have about one/8″-one/four” of free play. Professionals can get replacements ($1-two) in various thicknesses, but we suggest the swift and dirty technique of chopping your own out of a sheet of mylar.

“Groaning”, “creaking”, or “popping” all audio variety-of similar more than-the-phone. The best thing to do is to disassemble your gearbox and consider a appear at the gears and bearings. The situation will typically existing alone in the way of damaged/lacking gear teeth, toasted gears (like that picture on our property website page), or blown bearings.

My Gearbox is Groaning/Creaking: