Don’t fail to remember to re-seal the gearbox with RTV right after you’ve identified the proper combination. Even however they’re named “gaskets”, they is not going to seal your gearbox on their personal.
If almost everything seems standard, try adjusting the equipment-mesh. This is completed with the mylar “gaskets” that 
sit amongst the major gearbox scenario and the enter/output caps. Attempt including or eliminating some of these spacers until your gears have approximately 1/eight”-one/four” of free of charge play. Experts can purchase replacements ($one-two) in various thicknesses, but we recommend the rapid and filthy strategy of chopping your very own out of a sheet of mylar.
“Groaning”, “creaking”, or “popping” all sound variety-of related above-the-phone. The best factor to do is to disassemble your gearbox and take a appear at the gears and bearings. The problem will generally current alone in the way of damaged/missing gear tooth, toasted gears (like that photo on our residence page), or blown bearings.
My Gearbox is Groaning/Creaking:
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