Morning moweasy, Gadge,
I'm thinking you might have to start out with something aggressive, say 80 grit (?) and then perhaps finish with 120 grit. You'll want to at least remove about 75% of the groove depth. Use the grooves themselves and the 'stippled' casting marks inboard of the wear area as indicators of how evenly your removing the material- needs to be nice, flat and square and to that end you'll probably end up removing the entire area from the outer edge of the wear area to the centre of the pulley. One of those little palm sanders with the triangular sanding pad is ideal. Also, as a technicality use aluminium oxide paper if possible but not really critical.
I'm more than confident that this will work if done evenly.
Thanks for the link, Gadge. I'd not seen that one before. It's a good reminder that facing the damage off is the best solution.
Cheers,
P.S. Keep an eye on the sandpaper as you go and make sure it's not clogging up with sanding residue. Clean often and replace the pads as often as needed. The concern is that if the paper clogs up it might start to bite in and doing more damage . Go steady with the 80 grit and keep an eye on what it's doing. If it's too coarse go back to the 120.
Last edited by prd; 13/03/18 07:32 AM.
