Will not neglect to re-seal the gearbox with RTV right after you’ve got identified the proper mixture. Even though they are named “gaskets”, they will not seal your gearbox on their possess.
If every little thing appears normal, consider altering the gear-mesh. This is accomplished with the mylar “gaskets” that sit among the major gearbox case and the enter/output caps. Consider incorporating or eliminating some of these spacers until your gears have approximately one/8″-1/4″ of totally free enjoy. Professionals can get replacements ($one-two) in varying thicknesses, but we advocate the fast and dirty technique of reducing your personal out of a sheet of mylar.
“Groaning”, “creaking”, or “popping” all audio variety-of related above-the-phone. The very best factor to do is to disassemble your gearbox and consider a appear at the gears and bearings. The issue will usually present alone in the way of broken/lacking gear tooth, toasted gears (like that photograph on our house webpage), or blown bearings.
My Gearbox is Groaning/Creaking: