Side Bar Wafer Locks

by **Neo** » 14 Jun 2005 1:22

Anyone have pictures of how this lock works? Please, no back talk. I tried searching.

by **Shrub** » 14 Jun 2005 5:02

The stuff is there,

You may get more joy from searching 'bi-locks' but it may be that its more for the advanced section.

by **fixer** » 14 Jun 2005 10:24

Neo wrote:Anyone have pictures of how this lock works? Please, no back talk. I tried searching.

Do you want to know how these locks work in a vehicle ignition or some other application.

All side-bar locks work on the same principal of preventing the side-bar from moving out of it's slot until the pins/wafers move into the correct position.

On vehicle wafer locks, the mechanism is fairly crude and is just a notch in the wafer. On Medeco Bi-axial locks, you have to lift the pin to the correct height and rotate it to the correct position before the side-bar will move. On Schlage Primus, the side-bar is controlled by the milling on the side of the key and some special 'finger pins'.

Be a little more specific and we can give a better answer.

by **Neo** » 14 Jun 2005 16:40

Basically, I don't think I've ever seen a bi-lock in my entire life. I may have, but I can't recall one exactly. My family doesn't drive GM vehicles.

I'm looking for more information about the inside of it in terms of vehicle ignition and other places it may be used on a GM vehicle..

I wanted to get into the advanced section, I'm still pending on entrance for what I know. I applied a while back.

by **Shrub** » 15 Jun 2005 4:59

You wont get any specific car info until you get in the advaced section.

by **TOWCH** » 15 Jun 2005 10:22

I'd post pictures of mine but I'm currently not in the same country as it. If you bump the thread after July 7 I should be able to post them though. As far as I can tell they cannot be picked normally. The sidebar is retracted by springs and is square. When you apply tension it just binds the sidebar which is counterproductive. If you can't wait, just do what I did and go to autozone and pick one up. They're only about $10.

by **raimundo** » 15 Jun 2005 10:26

General Motors started using the Briggs and Stratton sidebar cylinder in 1935. there have been rings of tryout keys that were sold to open them based on half cuts and the tolerances in the lock. there are 6 wafers in these locks, and i think 5 different v grooves in the various wafer possibilites, It is not unusual to hear a story about a random used worn key that will open an old cars door or ignition. this must be a function of wear and chance. GM now uses a resistor on the ignition that is part of the key. there are 15 different values for these resistors. I doubt that the old GM sidebar is actually considered a high security lock, but it is a good one.

by **fixer** » 15 Jun 2005 13:25

I will dig out some vehicle wafers and post them for you to see.

As Raimundo said above, picking these locks usually involves accessing the sidebar by various means.

Many car keys now only open the mechanical locks and allow the ignition to turn. Actually starting the engine requires interaction with the ECU in the form of transponders (new) or resistive chips (older technology).

by **digital_blue** » 15 Jun 2005 13:35

Please do not post material on automotive in the general section. That is why we have an automotive section.

db

by **Mad Mick** » 15 Jun 2005 19:34

DB: I don't really think any toes have been stepped on so far...

Fixer's post actually serves to reinforce that picking will not result in a successful vehicle theft. The brick-pick is a more likely candidate for those wishing to gain quick access to the vehicle cabin too...

If things step up a gear, however, you're bang on target.

by **digital_blue** » 15 Jun 2005 20:05

No no, I agree with you Mick. It just appeared to me that things were about to get a little more detailed than I thought they ought to be in the general forums, which is why I stepped in now. The alternative would have been to wait for "too much" info to be posted, then move it to the advanced section and several members would be left wondering what happened to the thread they were involved in, so rather than do that, I figured I'd just point out that automotive entry techniques should not really be discussed here.

by **Mad Mick** » 15 Jun 2005 20:39

OK mate, good call.

In general though, the members who have the knowledge to answer are pretty discriminate. That said, a newbie wishing to make a name for himself may not be.

by **Neo** » 16 Jun 2005 8:21

.........................................................

*picks up large stick*....

anyways..

the foley-belsaw program doesn't give enough detail with their pictures.. i don't understand this lock. but seeing as how I have to wait to get into the advanced section.. i guess i'll just be in the dark about all of this. It's going to pertain to my apprentice job i'm going to have but ... so annoying I have to wait for an answer..

by **fixer** » 16 Jun 2005 9:23

Lets see if I can explain the mechanical workings of a sidebar lock without overstepping the mark.

The foobar manufacturing company makes the following single wafer lock for securing their wheel barrows

The single wafer looks sort of like this :-

Code: Select all: +-----+ | | | +--+ | | | / | \ | | +--------+

As the key slides in the keyway, it lifts the wafer up. If the wafer is at the right height, the sidebar can move into the notch in the wafer and allow the core to turn.

The difficulty in opening sidebar equipped locks is that the core of the lock will not turn unless the sidebar is retracted. This prevents picking and impressioning.

by **vector40** » 16 Jun 2005 10:33

To clarify, fix, I assume that the wafer still functions ordinarily (blocking the rotation unless it's elevated to the correct height) in addition to activating the sidebar?

Side Bar Wafer Locks

Side Bar Wafer Locks

Re: Side Bar Wafer Locks

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