| Changing your sprocket carrier wont of been wrong...you either got it to fit or not. What you might be doing is working in the wrong area of the eccentric hub.
What you could of done is mark the outer serated shape of the hub, the bit where you fit your chain adjusting spanner, with a white mark tippex or paint, at the point where the "5p piece is nearest the edge of the 10p piece"
That way you would know instantly which way to turn the hub, given wnough play in the chain!
If you can afford it, buy a new chain (like a gold erv2) that is slightly longer. In fact they are generally supplied longer. Keep your original chain for when you sell the bike. |