Pedals still spin when freewheeling

HullBorn

Hi,

As the subject says, my pedals still spin when freewheeling. If I keep my feet on the pedals the chain gets stuck and pulls the rear mech arm. There seems to be a bit of noise coming from the cassette/freehub.

I'm thinking there is a problem with the freehub, is there a way to check?

Cheers

Wayne

The Rookie

Take the freehub off!

What make and model of hub?

keef66

+1; your freehub isn't behaving as it should. Needs removing / cleaning / lubricating or possibly replacing. Depends on what the hub and freehub are, and what state it's in.

HullBorn

Thanks,

Do I need any special tools to remove the freehub. I have the tools to remove the cassette.

Cheers

cooldad

Depends what the wheel/freehub is. Some need tools, some don't.

HullBorn

Thanks, I'll have a look later.

keef66

If it's a Shimano hub / freehub you'll need cone spanners to undo the locknut / cone at one end of the axle (easiest to do the non drive side), withdraw the axle from the opposite end, retrieve all the ball bearings then stick a 10mm allen key or hex bit in the end of the tubular nut in the centre of the freehub. Unscrews anticlockwise. The freehub then pulls off. Retrieve the spacer. Carefully pick out the rubber seal from the rear of the freehub, noting which way round it goes. Peer inside. If the internals are well corroded and bright orange, it's simplest to buy a new freehub. It is possible to strip them down, but it is quite fiddly and Shimano don't sell the spares separately. A dedicated tinkerer could source the (many, tiny) ball bearings necessary.
If it's only a bit mucky in there, drizzle a load of light oil inside and see if it frees it up at all. Drain and repeat a few times till no more muck emerges, then lube it with a slightly heavier oil. I do mine once a year with 5W30 engine oil. Replace the seal and refit in reverse order remembering the spacer. Clean and regrease the bearings (I'd fit new ones if they are 3 years old), and take your time adjusting the cone / locknut on reassembly.

Ignore all this if other make!

HullBorn

Thanks for the help so far.

This is where I am. I've removed the cassette and axle. However I can't seem to remove the freehub. It's a Sun Ringle RYDE XMB hub it that makes a difference.




Thanks

Wayne.

The Rookie

You can see inside the freehub in the lower photo the hex slot for an Allen key, strong clue on how to remove it....

stretchy

Turn the motor off

HullBorn

Not sure what size hex key, Tried a 10mm, that's too small. Took it to the LBS and they said 13mm but they didn't have one. I'm thinking this is the replacement I need http://www.chainreactioncycles.com/sun- ... -prod54490 and they say 11mm