Rob Marathon said:Hi I have a old 6 speed free wheel that is stuck on the bike. It is
the two prong SunTour type. I have the correct tool but the
freewheel is stuck on the hub. It is the thread on type and is on
an old solid disk wheel so I don't want to use too much force. Is
there a trick to get these off?
That it is a two tab remover isn't so good because that may shear the
tabs. However, as has been suggested, put the remover tool in a solid
bench vise, tighten the remover onto the face of the freewheel using
the QR skewer of the wheel and apply torque to the wheel in the mode
of a steering wheel. In this way both tabs are stressed and the
chance of stripping the freewheel tabs is reduced. Note that the QR
thread is a different pitch than the freewheel and must be backed out
once the freewheel loosens or you will strip the threads on the QR as
it gets extremely tight.
This removal requires a great torque and as suggested, freezing the
hub may help. I have always succeeded in getting freewheels off
except where the tabs sheared off. In that case the freewheel must be
disassembled on the wheel by removing the bearing cone, the cover with
two small bores in it. This is a left hand thread and is removed by
using a punch that fits into one of these holes and a hammer to drive
it around to loosen it. Once removed, the rest of the freewheel outer
body with sprockets will come off, spilling pawls and 1/8" bearing
balls all over.
Using a large plumber's pipe wrench on the body, it can be removed
relatively easily. Throw the whole mess away and get a better
freewheel if you must use that wheel again. This may not be easy
because such freewheels or ones similar are no longer made for your
bicycle.
Quoted message said:In the future how can one take steps to prevent this from happening?
Lubricate the threads with 90W or 140W gear lubricant and use only
freewheels that offer a good remover tool, four pronged or splined.
Jobst Brandt
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