Do not fail to remember to re-seal the gearbox with RTV after you’ve got discovered the proper mixture. Even though they’re known as “gaskets”, they will not seal your gearbox on their very own.
If everything looks normal, try out modifying the equipment-mesh. This is carried out with the mylar “gaskets” that sit in between the primary gearbox situation and the enter/output caps. Attempt introducing or eliminating some of these spacers until finally your gears have approximately one/8″-1/four” of cost-free perform. Experts can order replacements ($one-2) in different thicknesses, but 
we recommend the fast and dirty technique of cutting your own out of a sheet of mylar
.
“Groaning”, “creaking”, or “popping” all sound sort-of related more than-the-phone. The best point to do is to disassemble your gearbox and get a look at the gears and bearings. The issue will normally present itself in the way of broken/missing equipment teeth, toasted gears (like that photo on our property page), or blown bearings.
My Gearbox is Groaning/Creaking:
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