Everest Nova 6s-freewheel service???

[ReapThaWhirlwind]

(06-08-2021, 12:07 PM)Jesper Wrote:  I would certainly agree that a good solvent will break-down "grime", but the grit (silica, rock dust, metal debris, etc.) will not break-down and must be washed out of the mechanism when the unit is fully disassembled. Yes, some of that debris will rinse out without tearing down the unit, but that which remains is left in areas where it will continue to cause acelerated wear if the FW is not overhauled; and which could cause premature failure. If working on any FW (or any part) of unknown history (use and service) I would always recommend a complete break-down of the component(s) for thorough cleaning and lubrication if required. I regularly cycle on bikes with parts 40-50 years old; many be ridden for over 30 years by myself, and I have not had a properly maintained component malfunction aside from normal wear which was greatly reduced by completely overhauling parts during regular servicing. If you have a spare FW (I have many) you can always have a properly serviced unit ready to swap out when another needs overhaul. Thus, avoiding any cycling downtime for servicing a unit which may have become excessively soiled during use and requiring an overhaul. I tend to do FW, RD, and chain at the same time since they receive the same exposure to road debris, and frequently need more routine service than other areas (BB, headset, hubs, etc.); especially mtb's, and bikes that are frequently used off-road and/or are frequently used in adverse conditions.

I thought it was a silly question coming from someone who is making videos about servicing freewheels.

Can't really justify all that though—just throw it away and buy a new one?

Nothing beats brand new.