I have repaired my shimano free wheel or other like it and i will tell you how. an effective way to check or repair the inside of the free wheel is to learn first how to assmeble and disassemble it(duhhh lol) and here is the video how  

a large magnet will help catch the tiny buger sized bearings if carefully placed under the freewheel while loosening the lockring.

if the spanner tool is not available you can use a hammer and a pointless concrete nail (use your imagination to figure out how to make the concrete nail less pointy using the hammer)

now opening it with hammer and concrete nail, place the pointless nail in the shallow hole in the lockring pointing downward close to 45 degrees then gently tap it rapidly with the hammer remember the lock ring loosens at clock wise. just loosen it Dont remove the lockring completely yet or else removing the freewheel impatiently will scatter buger bearings all over the floor the over all number of those bearings is less than 60 i guess. after loosening it only enough to be removed by dialing it a rotary phone then place the bearing under the freewheel, you can now remove the free wheel (BE AWARE THAT THE BEARING MIGHT SCATTER LIKE A BIG BANG THEORY)

place it in the table with a towel, remove lockring, spray a wd 40 then magnet the bugerbearings on the top. remove the thin spacer then the spring and sprawls,

  soak them in wd 40 or kerosene. wipe it clean. after ALL the free wheel parts are completely free of any liquids and dirt you can now put the GREASE this has to be a Grade 3 lithium Grease make sure all the internal parts are covered in grease not too thin not too Thick. just thick but make sure that the parts can move freely (because too much grease will make the sprawl stick to the inner freewheel and prevent it to do its function  ) after properly placing the sprawls and springs and spacer. its time for the bearings you already know where to put them the problem is how

first grease your fingers before picking up the NEW bearings it has to be new. the with your index finger and thumb greased pick up the bearing and roll it like a buger to cover it in grease the stick it to its rightful place in the bearings.

with all the bearings in place put it back in the external freewheel, how? while forcing the internal freewheel in, rotate the outer freewheel clockwise so the sprawls would not interfere. just put in the spacer and tighten the lock ring. and there you go.

if you want to me to make detailed video email me [email protected] i will make it realy short and realy detailed as possible. .

I have repaired my Shimano free wheel or other like it and I will tell you how. An effective way to check or repair the inside of the free wheel is to learn first how to assemble and disassemble it and here is the video how 

A large magnet will help catch the tiny buger sized bearings if carefully placed under the freewheel while loosening the lockring.

If no spanner tool is available you can use a hammer and a pointless concrete nail (use your imagination to figure out how to make the concrete nail less pointy using the hammer).

To open it with hammer and concrete nail, place the pointless nail in the shallow hole in the lockring pointing downward close to 45 degrees, then gently tap it rapidly with the hammer. Remember the lock ring loosens at clock wise. Just loosen it but don't remove the lockring completely yet or else removing the freewheel impatiently will scatter buger bearings all over the floor. The overall number of those bearings is less than 60 I guess. After loosening it only enough to be removed by dialing it like a rotary phone place the magnet under the freewheel. You can now remove the freewheel (BE AWARE THAT THE BEARING MIGHT SCATTER LIKE A BIG BANG THEORY)

Place it in the table with a towel, remove the lockring, spray it with WD 40 then magnet the bugerbearings on the top. Remove the thin spacer then the spring and sprawls, soak them in WD 40 or kerosene. Wipe it clean. After ALL the free wheel parts are completely free of any liquids and dirt you can now put the grease in. This has to be a Grade 3 lithium grease. Make sure all the internal parts are covered in grease not too thin and not too thick – make sure that the parts can move freely (because too much grease will make the sprawl stick to the inner freewheel and prevent it to do its function) after properly placing the sprawls and springs and spacer. For the bearings you already know where to put them the problem is just, how.

With your index finger and thumb greased pick up the new bearing and roll it like a buger to cover it in grease then stick it to its rightful place in the bearings.

With all the bearings in place put it back in the external freewheel. While forcing the internal freewheel in, rotate the outer freewheel clockwise so the sprawls would not interfere. Just put in the spacer, tighten the lock ring and there you go.

If you want to me to make detailed video email me [email protected] I will make it really short and really detailed as possible.