Even cheap freewheels can be repaired

kartopla

100 mW
Joined
Mar 29, 2010
Messages
35
Hi, I really haven't posted many things, but what I'm posting now is just a problem I've been having with freewheels. I'm too cheap to spent 60 or 70 on a very durable one, but even expensive ones can fail from high torque. so I keep fixing the 10 dollar one I already have. The first problem I encoutered with it was when I pedaled about 12 miled on my ebike, so the crank freewheel was always engaged. The pawls or whatever their called kind of shifted and started to push their way out of the socket that they pivot in. But, the rest of the freewheel is quite strong. The inner part that threads onto a hub isn't as hard as the pawls, so they dug into the inner part . Almost like you were hammering at steel. It deforms it. This deformation of the part forces the spring up to a position where it doesn't engage the pawl into the groove. So, to fix this I opened the freewheel and dremeled the deformed area so that the spring could seat properly. Opening is easy. Just get a center punch and hammer at the threaded cover clockwise while in a vise. The balls aren't too cumbersome. Just loosen it over a bowl. The balls are easily stuck back by putting heavy greese around where they seat and sticking them one by one all the way around. Anyways I found heavier pawls from an old 3 speed hub I took apart, and strangely enough, they fit. We'll see how long this fix lasts.Picture 183.jpgPicture 184.jpgPicture 187.jpgPicture 189.jpg
 
you're a lifesaver.

I just had that exact problem today when my DICTA freewheel loosened. It was terrible. I'm now thinking of ways of getting it back together firmly.
The part where you mention 'grease' and placing the bearings in was very helpful, thanks,

Do you know how the back part of the freewheel sticks back onto the 'grooves' of the screw-in part of the freewheel? it seems as if there is nowhere for it to slide? if you get my meaning? there are these thin rings that are next to the solid back...

I shall be buying another one of these freewheels and a dicta freewheel 'opener tool', so hopefully I can dismantle it and use it properly. My hopes are up as my Etek bike held up quite well yesterday. It was good fun and I wouldn't substitute an Etek on a bicycle for anything else.
 
Just out of interest, where do you 'weld' the back of the freewheel? is there anywhere where you can keep the back secured forever so the bearings do not fall out?
 
I'm a little confused, when you said that your freewheel loosened do you mean it fell apart with all the balls coming out? If so, the thin threaded cover was not tightened. You can put it back together if you have enough balls. (no pun intended).
 
novembersierra28 said:
Just out of interest, where do you 'weld' the back of the freewheel? is there anywhere where you can keep the back secured forever so the bearings do not fall out?
What do you mean weld the back of the freewheel? Can you take a photo or give a better description of what your trying to do? Where is the freewheel mounted? On the back wheel or the crank?
 
kartopla said:
I'm a little confused, when you said that your freewheel loosened do you mean it fell apart with all the balls coming out? If so, the thin threaded cover was not tightened. You can put it back together if you have enough balls. (no pun intended).


I did this last night after reading your part on how to 'sink the balls into the lithium cream' ... that's a funny one too :( you just can't win
 
kartopla said:
novembersierra28 said:
Just out of interest, where do you 'weld' the back of the freewheel? is there anywhere where you can keep the back secured forever so the bearings do not fall out?
What do you mean weld the back of the freewheel? Can you take a photo or give a better description of what your trying to do? Where is the freewheel mounted? On the back wheel or the crank?


yes it fell apart as in the balls went everywhere. I screwed it back on with my hands, and I don't know for how long it'll last me...seems to work okay...but...I'm a little terrified of it falling apart again.... can you think of a way to make sure it DOESN'T unscrew? I've filled it up full of lithium, it should be good for another 14000 miles.
 
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