dore westbury mk2

i have been honing out my casting where the column fits but seemingly hit a hard spot on the casting and cannot manage to get the bore out to achive a sliding fit for the column.

this was a job i did on my mk 1 dore westbury back years ago without any problem at all i welcome any helpfull comments please

geoff

What sort of hone are you using?

If all else fails, can you get an automotive machine shop to put it on their Sunnen hone or similar?

H W Machine Repair of Fort Wayne Indiana frequently have this sort of trouble refitting the quill to Bridgeport mills they overhaul. Their solution is to fit a wrap of fine abrasive paper to a rubber plunger and drive that up and down the bore of the housing to break the vertical wear marks it has developed in the housing in use over a long period of time. They continue with the process until the quill begins to fit, it can take some time to get to that stage

They finish the job with Time Saver lapping compound to give a smooth shake free fit of the two components, clean the job up and oil the surfaces well as they rebuild the machine.

These are professional solutions to the problem of restoring the machine to original specification.

Brian

I forgot to add that they stone the O/D of the quill as well to assist in the re-fitting of the parts

If you are able to identify the hard spot what about cutting it away with an abrasive disc on a Dremel type drill. Never tried it myself though.

hi hopper

sorry for the delay but it is a glaze breaker hone 2"-51/4"

thanks to you all for your replies

geoff