In article ,
Trevor Wilson wrote:
**Replace them. I doubt there is enough metal there to allow re-lapping
with any success. You could try BrassoT and complete the job with
SilvoT. The damage is so bad that I doubt that the time taken will make
it worthwhile. You may need to hit it with [SHUDDER] wet and dry (600)
first.

Yes - remember watching a maintenance guy doing just this years ago with
24 track heads. He used wet or dry with oil to start with on a surface
plate. Then progressively finer abrasives. Took him ages.
Never bothered with the 1/4in ones, though - cheaper to replace. But dunno
just how easy they are to source these days. I've got a new set 'in stock'
for the A77s which I'd guess will see me out.

--
*I didn't fight my way to the top of the food chain to be a vegetarian.

Dave Plowman London SW
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