A neighbour's front door can't be locked(1) - the key goes in easily but
I have spare cylinders of the right size (not available from the sheds, TS,
SF etc.) from when I changed my locks (aftter v. useful advice here).
It's be nice to get the old lock out without damage to the door (uPVC). I
could look at some videos of bumping and snapping but, knowing my luck,
something would go wrong. With the handles removed there's plenty of lock on
the inside to grip, if it does come to snapping. The locks aren't high
quality and are about 27 years old, so not too secure.
(1) atm the outside handle is jammed horizontal with a wedge of cardboard so
that it looks OK. The inside handle is in a position to allow the door to be
opened in an emergency but not far enough in for the outside handle to
I would try lubricant/woggling/thumping etc you may just manage to
unstick it. If all else fails I would drill out rather than snap it as
drilling will only damage the lock, snapping can cause damage to doors
If an old lock it should drill easily enough. Video clip:
Well, tried lube/waggling, no effect, so did the same to the lock and that
was the same ;-)
Tried snapping, but nobody had locking grips that were big enough.
Tried using an over-long key and tapping it whilst trying to turn it - works
on You Tube but not in Real Life.
I've watched the vid. in the link above - thanks for that. Main comment: not
sure about using a drill bit as a centre punch but if it works...
Anyway, drilling next.
On Sun, 05 Aug 2018 17:00:16 GMT, DerbyBorn wrote:
We've wiggled everything in all directions and no luck.
I stopped one attack because the chap about to try it didn't realise that it
would dammage the actuating mech. - probably deform the case.
It's lucky that I've stripped, cleaned and lubed mine several times since
'91, so I know how it works. It has been about 6 - 7 years since last done,
I've just realised. My front door faces SW and gets rather a lot of weather
so I like to look at it before there's a problem.
OK, update: followed the video re. drilling. Started off in the centre, went
well until the first pin then the bit was deflected to one side.
Tried a cobalt bit - polished the pin! Although the locks were fitted in
'91, so I expected them to be easy, it was a German company based in Lincoln
(Stern Fenster), so possibly the locks were pretty good.
Cut off the lock as close to the door as I dare, using a hacksaw with the
blade at 90 deg. to the frame - still wouldn't turn as one pin remained. As
I was following the vid I'd tried to turn it with a screwdriver, then
realised that with only one pin left almost any key would do it - and it
Tried new lock, still wouldn't turn - shit!
Took out the mech. and found that the bit what should have been operated by
the handle to allow the lock to operate wasn't moving correctly. Closer look
showed a small, square-section piece of black metal flopping around. So, a
Seems that a new mech. is the only way to fix it and that's about £44 :-(
Doubt it. The whole mech. is 'riveted' together and the 'rivets' are
actually the shafts for all the moving bits.
There's also the high potential for a multiple pinfuckit. As the whole thing
is north of 6' long and rather oily/greasy I'd need to do it in the shed or
outside (weather allowing - typical British summer, always raining!), so any
flying bits would be lost.
6mm drill at the bottom of the key slot, i.e. where round turning part and
Euro-profile part meet. Drills out the pins. Insert screwdriver in mangle
remains and turn. On a standard brass cylinder you will spend more time cleaning
up the swarf and metal bits than drilling and opening.
Snapping might bend stuff you want to reuse?
On Sat, 04 Aug 2018 10:42:24 +0200, Thomas Prufer wrote:
Well, I've considered drilling, snapping and bumping (in descending order of
damage). A chap from a couple of doors down said AG! - he's a builder, so
his idea of an AG might not be the same as ours.
The lock is a cheap one and I've already supplied 2 locks of the same sort,
complete with keys, so destroying the old one doesn't matter.
Off to look at vids.
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