Freewheel maintenance!
What can I do to it? What should I do to it?
It is a "schwinn approved model J"
The back looks like this, it looks like it comes apart with a 3 pronged tool that I don't have.
When I got thebike the grease in the freewheel was stiff enough that the rear derailleur did not have enough spring tension to resit it when coating so the chain would droop between the cranks and the rear wheel, I dribbled sme triflow into the outboard side of the freewheel and it immediately spun freely as it should, but having dried grease thinned with thin oil in there isn't particularly ideal, I have a grease needle, should I cram some grease into the small ball bearing that are visible on the backside of the freewheel? Just dribble some 20 weight oil into there and call it good? Or???
The rear wheel did have a 10mm axle in it (so the rear wheel was replaced at some point in the past) so I was able to replace the bent axle that was in there with a straight one from an old MTB wheel I had, I did of course have to cut the MTB axle to 132mm.