joejoe

Sorry for shouting, but hopefully you see and can respond. I saw on an earlier post you had pictures of removing a door lock cylinder (I think it was from 2010) This I have already done, but I am very interested in how to get tumbler out of cylinder. I am having problems with driver doorlock not locking (car is '86.5) As it turns out the set screw on outside door is fubar. (actually it looks like a monkey took apart door panel before) At sometime the lock had been worked on and instead of using metric bolt a standard bolt was crossthreaded and stripped. The lock cannot be kept still and hangs about 1/16 (maybe less) out the door.


I rekeyed the rear hatch (early non alarm unit had been put in) and punched the 2 rivit holding cover too far and wedged them onto cylinder. Eventually after dremel work I did get it apart and swapped key thingies until lock would work with long driver key.


I do have a spare driver door lock but would like to replace cylinder with original one. How do you remove cylinder? I see 2 rivits(?) and wonder are these drilled out, or punched in? I would like to not ruin the casing (as I almost did with trunk) Any help would be greatly appreciated (from anyone)

ammonman

I'm not Hilton but I had to do the same to the drivers side lock on my 1990. Lacking a key to turn tumblers in the donor housing you can't punch the retaining pins into the tumbler housing as the tumbler cylinder must be turned to allow the pins to move inward. To remove the pins you need to make a shallow angled cut into each side of the lock housing such that you scribe a small groove into the edge of each retaining pin. With the lock assembly clamped in a vice, use a SHARP strong blade (razor knife, wood chisel, etc) to catch the shallow groove you made in the pin and pry each pin up out of the lock housing. The tumbler cylinder can now be removed. I made new retaining pins out of a nail slightly larger than the existing holes in the lock body. IIRC the original pins are knurled or staked before installation so they get a good bite into the softer lock housing material. I understand that sometimes the original pins can be re-used. If they won't fit tightly then new oversized pins must be made.

Hope this helps.

Mike

joejoe

Thanks ammonman I did not think of needing to turn before punching pins in. Just finished talking to previous owner and he had this work done at one of the supposedly more reputable shops in a nearby town.

Hilton

I've drilled them out in the past - 2mm drill bit rings a bell, but I can't find a bunch of my lock-disassembly photos that I took last time I re-keyed a lock.

I just used a center punch and drilled directly down the pin. The pins are about 5mm long - you'll get to a point where, once you've drilled the pin through the depth of the wall of the lock, the remainder will just drop in.

However, on one of my cars, when I took the door lock out, I found that someone had taken a slightly different approach to drilling the pins, and drilled a small hole immediately adjacent to the pin. On those locks, I found I could just use a needle punch to lever out the pin, which made life simple

The two pics below are from different cars - one shows clearly the pin to drill out. The other shows the lock that has the adjacent hole.