jon928se

To summarise

You have short key that will work all locks
You have long key that works all locks except the drivers door.

That tells us 2 things

Your keys short and long are matched with the locks
The long key is matched with the extra two tumblers in the alarm cylinder on the inside end of the door and hatch locks.

Thus your problem is with alarm cylinder on the inside end of the drivers door lock.

As Ron_H has described how to remove the lock I won't. Then you need to dissasemble the lock.

You don't need to do this as you have a short key that will turn this lock. Put the short key in the lock turn it 90 degrees and hold it in that position, then punch the shiny pin into the lock. (You only need to do what Ron_H described if you don't have a key to turn the lock with) Then carefully remove the outer cylinder taking care not to lose the shiny pin (I did ) . Leave the key in cylinder as you do this, this prevents the tumblers from falling out of the cylinder.

This is the part where my memory is hazy - You can now see the alarm cylinder at the inboard end of the lock and it should be obvious how to remove it. insert the tip of the long key into it once removed and you can check that the tumblers retract.

I bet that the alarm cylinder is possibly just stuck due to corrosion/lack of use/ dried up grease and a good clean will do the trick.

HTH

Alan

One note - I know you are working hard on this car and it has lots of issue....

But when you post for help please take your time and try to put yourself in the position of the folks who will be trying to help you.

You rarely seem to describe the issues in sufficient detail to really give us many clues as to exactly whats going on...

Slow down and tell us more: What exactly is the issue? - be concise - how do you think it should work?, what have you tried?, what doesn't work? & what does still work?.... whats the history? - did it ever work for you?, was it always like this? is there anything that seems related? any other failures to these same systems?

It seems to take a long time to get through all the details and sometimes you may miss out getting help from someone who knows the answer because they just don't understand your questions or exactly what you've already done.

Not trying to be negative - you can help yourself get things resolved faster this way - sometimes you may even figure it out before you post (I've done that!).

Alan

Ron_H

Thanks Jon. I wish I had known about that pin removal trick before getting involved with my locks.

Tampa 928s

I have the habit of thinking out loud and my post may reflect that. As I get into this car I jump on line to figure the next step. I guess I assume that someone would be in the same mind set and know or had been through the same problems. As I trouble shoot more information becomes apparent to me and your correct , I do figure it out by myself. I think I am on the right track and I hit a wall and get a little frustrated. The window issue seems so simple but I keep checking and rechecking and gain more knowledge with help from the crew. I make a lot of notes and try to help someone else in the future so they won't drive everyone else crazy like I do.
Thanks for all your support and hope I don't get on the dangler list.

jon928se

You're not driving us crazy we just want to know if wot we wrote helped or you have some other key problem that no one else has ever found before.

jon928se

You're not driving us crazy we just want to know if wot we wrote helped or you have some other key problem that no one else has ever found before.

Landseer

Tampa, you're more of a 928 hero for tackling multitudes of issues constantly, trying to get these cars back on the road and keep em there! Be sure to tell us how it gets solved.

Tampa 928s

I got the lock out and there is a hole that has nothing "picture-1" in it and a tiny steel pin "picture-2", is the tiny pin the one I drive out?
Looks like is is a alarm cylinder.

Tampa 928s

I got the pins out there are two and you can't pound them straight through I had to drill them out.
The alarm portion is not fully retracting the pins I am working on that now.

Tampa 928s

Well it's back together and it seems to work but I can't seem to get the round spring in position correctly. I attached it to the tumbler and tried various ways but I do not get any spring tension. I'm looking for some diagrams or pictures of how to position the spring.
Thanks

Ron_H

This was posted by Parker. Look through the second page of the thread to see
Bill's post and pictures of that spring: https://rennlist.com/forums/928-forum/397857-re-keying-locks.html

Tampa 928s

I did see that but no matter how I try I can't get that spring to lock in so it provides tension. I maybe just tired been at this car all day.

Landseer

You are almost there, the spring attaches in a way that is not immediately intuitive. I think it crosses over itself, will look for pic.

Oh, Ron H already directed you close to it, try this more direct link, it should help.

Go to post #5 within this thread:

https://rennlist.com/forums/928-forum/380616-the-anatomy-of-a-hatch-alarm-lock.html

Sam928

[QUOTE=Ron_H;5911337]Pull the lock out as far as it will come from the outside face of the door. Then use a small bladed screw driver or extra small open end wrench to pry loose the ball on the end of the arm holding the lock cylinder to the other "stuff" in their. You will pry the ball free from the female end. Then you may remove the cylinder. Look in with a small flashlight to examine how it is held, and remember how to re-install it. Once you figure it out it is simple and you'll be able to do it quickly. It is like a bell crank on a weber carb linkage. I presume you have found the allen screw holding the cylinder to the door in the door jamb. Careful not to loose the washer under that screw for it controls how far into the cylinder the screw is screwed.

Then you can have access to the entire cylinder and can check your key's proper function and penetration into the cylinder. It will all become clear with the cylinder in your hand. There may be a wiring attachment to the rear of the cylinder too, if I remember correctly. Carefully remove it. Take your time not to damage anything, or scratch the paint on the door.

__________________________
1985 928 S

Thanks for the info on taking a door lock cylinder out. I got the lock half way out but I was afraid to pop off the linkagel arm. Once the arm is off, I assume it will fall inside the door. How do I get it back on? Even with the interior door panel off I can't reach the back of the cylinder.

Sam

tveltman

Okay. I admit it. I skimmed some. But I didn't see what the problem was in this specific case. What was the fix? When I first read the post, I figured it was a sticking pin in the alarm section. I've only taken apart the hatch latch, but I re-keyed a non-alarm latch (thanks Gio!), and when I inspected the alarm unit that came out of the old one, I noticed that there are same sort of pins for the tumblers, but the alarm piece is actually separate from the main portion of the lock cylinder. If the alarm pins are slightly proud, it can keep the unit from turning, and that was my guess. What ended up being the issue?