hi does anyone know how to remove the ignition lock barrel from the housing its the later sierra if it makes a difference
i only have one key for the one i have and the key cutting place say i have to bring the barrel in as it may be worn inside so they cant cut a key to
fit
thanks
mark
If I remember rightly you need to put the key in and turn it round to start position. Hold it there and then there is a pin on the side of the barrel
that you push in to free it.
Steve
You have to depress a small spring /plunger in the side of the barrel after turning the key to IIRC pos 2. Look for a small hole in the body and depress the spring through that
i can find a small square hole underneath but it doesnt do anything whatever position its in, have i got the right one or am i just not doing it right
I tried the pin thing with mine, but couldnt get it out for some reason. The pin is round and at the keyhole end IIRC.
I ended up cutting mine off with the angry grinder anyway 
Got a new barrel with 2 keys of fleebay for less than £20.00, with the new barrel in hand its easy to work out where the plunger is.
The pin in the little hole will depress and release the barrel at position 1.
If it doesn't there is something wrong with the barrel.
Rescued attachment Ign IN.JPG
and out it comes....
Rescued attachment Ign Out.JPG
quote:
Originally posted by myeates
hi does anyone know how to remove the ignition lock barrel from the housing
The flats on the key correspond to numbers. My key was worn out but the key man on the local market looked at it and put the numbers into his machine, perfect working key. It's the size of the flats on the shaft.
liverpool sounds a good idea
thats why i cant get it out my switches are in the way so i didnt see the proper hole i was trying underneath will have a go at that later.
thats what he did with the numbers but when we looked closely at the original one flat was slightly worn so i think the lock may be the same but will
see what he says when i have got the barrel out
thanks guys will let you know how i get on 
You can always just junk it and fit push button via dash mounted key switch and immobiliser. Ive had the original casting machined on lathe and polished (you need it is it houses the column upper bearing).