Advice please Taper shaft chuck falling out of drill press

[Sideways]

I've been asked to help fix an Axminster white number 16 bench drill. This works adequately as a woodwork drill but its chuck has started falling out when not in use.
It has a Jacobs 34 chuck on what I think is a #2 morse taper shaft.
The taper on the chuck feels decently smooth and even to the touch.
Feeling with a "pinkie" finger, the inside taper of the drill feels a little uneven in a couple of places so I think this is the cause of the problem. Don't know if it is damaged metal or if dust / swarf can get trapped in there and compressed / burnt onto the inside surface.
This isn't much used for metalworking and I haven't measured the runout.

Are there any DIY level techniques that are recommended for cleaning up an inside taper without ruining it ? Thanks.

 

[Farmer Giles]

If it's burred inside then one of these https://www.rdgtools.co.uk/cgi-bin/sh00 ... ml#SID=467

If you do get the reamer, only use it lightly to remove the burrs, I wouldn't cut a whole new taper without a way of keeping it straight, you may end up with a lot of run out.

If it is just dirt and burnt on wood dust then a bit of emery paper on the shank of a drill and poked up the taper and gently rub it should do it.

Cheers
Andy

 

[ED65]

If there's wood residue inside I think solvent cleaning would be the first thing to try.

 

[Rorschach]

A good squirt of WD40 or any similar type of spray, let it site for a while, add some more and then use a bottle brush to scrub the taper. Wipe dry with a paper towel.

I found a perfectly sized bottle brush for use on my lathe, use it regularly as I change tailstock tooling a lot.

A reamer is very handy to have, use mine about once or twice a year to clean up any stubborn chips or burrs.

 

[Sideways]

Thanks everyone, that gives me 3 stages to work through in order until I fix it. Perfect.
WD40 / solvent with a brush and paper
Fine emery on a male taper
The reamer - which is cheaper than I imagined them to be

Much appreciated