Author Topic: Ignition Keys and Buildsheets?  (Read 3386 times)

Offline midlife

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Ignition Keys and Buildsheets?
« on: November 29, 2021, 12:38:48 AM »
Someone remarked to me that there were only about 20 distinct keys made for any one year, which I think is too low a number.  But that raised an intriguing question: were ignition/door keys specified in the buildsheet?  If not, how did they get tracked to the registration booklet?  Was that done at the dealership?  Any idea how ignition and door keys were assigned to the car as it was being built?
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Offline Coralsnake

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Re: Ignition Keys and Buildsheets?
« Reply #1 on: November 29, 2021, 08:16:01 AM »
Not on build sheets to the best of my knowledge

Its an interesting question, I suspect it was on paperwork in car somewhere and the small metal ring attached to the keys

Offline CharlesTurner

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Re: Ignition Keys and Buildsheets?
« Reply #2 on: November 29, 2021, 10:25:53 AM »
The keys came with rings with the codes on them.  These were usually recorded on the car/buyer info in the owner's manual.  I'd agree that there were many more than 20.
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Offline krelboyne

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Re: Ignition Keys and Buildsheets?
« Reply #3 on: November 29, 2021, 11:29:06 AM »
Single cut Ford keys - 1000 combinations.
Double cut Ford keys - 1864 combinations.

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Offline sgl66

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Re: Ignition Keys and Buildsheets?
« Reply #4 on: November 29, 2021, 06:23:46 PM »
The keys came with rings with the codes on them.  These were usually recorded on the car/buyer info in the owner's manual.  I'd agree that there were many more than 20.
I have them on my dealer invoice also, one of them with an FN number above 300
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Offline J_Speegle

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Re: Ignition Keys and Buildsheets?
« Reply #5 on: November 29, 2021, 07:04:41 PM »
Someone remarked to me that there were only about 20 distinct keys made for any one year, which I think is too low a number.  But that raised an intriguing question: were ignition/door keys specified in the buildsheet? If not, how did they get tracked to the registration booklet?  Was that done at the dealership?

Agree with Pete this information was not included on the buildsheet. May not have been needed to be notated on any factory paperwork since the keys were included with the car. Dealer would have kept records of the keys so that it would make it easier if they were lost while in their car or the owner lost them.


  Any idea how ignition and door keys were assigned to the car as it was being built?

Randomly assigned
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Offline midlife

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Re: Ignition Keys and Buildsheets?
« Reply #6 on: November 29, 2021, 10:07:07 PM »
Fair enough.  If the keys were randomly assigned to the cars on the factory floor, there must have been a traveler associated with the key cut number that carried it through from installation to final delivery out the door (and then on to the dealer) via owner's manual/warranty card?  To me, that's a big hole for potential failures and QA snafus. 
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Offline J_Speegle

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Re: Ignition Keys and Buildsheets?
« Reply #7 on: November 30, 2021, 05:03:06 PM »
Checked and the only place I can find the key set number is on early owners manuals suggesting to me right now that the dealers  collected the information when the car arrived at the dealership or when the car was sold. Ford owners manuals didn't come with the car from the factories generally from my understanding.


Looked through my collection of warranty cars, both temp and official ones sent to owners from Ford,  and there is no key identification coding on them  on any that I have pictures of.  Checked shipping invoices, basically the way that the plant identified the features and options of the new car to the dealership, and I see no key codes listed on the ones I have  Couple hundred or so at this time
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Offline Coralsnake

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Re: Ignition Keys and Buildsheets?
« Reply #8 on: November 30, 2021, 08:05:59 PM »
Do the individual lock cylinders have the codes on them?

Offline RoyceP

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Re: Ignition Keys and Buildsheets?
« Reply #9 on: November 30, 2021, 08:22:59 PM »

One of the door locks does. I believe it is supposed to be the left one.



Do the individual lock cylinders have the codes on them?
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Offline ruppstang

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Re: Ignition Keys and Buildsheets?
« Reply #10 on: November 30, 2021, 08:50:07 PM »
If the glove box is keyed it has the lock code on it for the glove box and trunk lock.

Offline 67gtasanjose

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Re: Ignition Keys and Buildsheets?
« Reply #11 on: December 01, 2021, 09:15:19 AM »
One of the door locks does. I believe it is supposed to be the left one.
If the glove box is keyed it has the lock code on it for the glove box and trunk lock.

True on both counts and codes could be found on the trunk lock too. Regarding the door code, it actually could be either side, pending model line and/or production period.
Car thieves used this "feature" to easily make keys for cars made after hot wiring them so eventually, manufacturers quit coding them in such easier-to-find locations.
Cars used to also be shipped with the keys in the ignition but for obvious reasons, that ended too!
« Last Edit: December 01, 2021, 09:18:09 AM by 67gtasanjose »
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Offline preaction

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Re: Ignition Keys and Buildsheets?
« Reply #12 on: December 01, 2021, 12:47:34 PM »
Single cut Ford keys - 1000 combinations.
Double cut Ford keys - 1864 combinations.
Scott, thats a very interesting set of facts thanks for posting them, I never saw them before. :D
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Offline jwc66k

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Re: Ignition Keys and Buildsheets?
« Reply #13 on: December 01, 2021, 07:24:13 PM »
Single cut Ford keys - 1000 combinations.
Double cut Ford keys - 1864 combinations.
Considering that there are 5 tumblers per each lock, and let's assume 10 different lengths of tumbler, that's only 50 combinations. Back to the chalk board.
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Offline 67gta289

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Re: Ignition Keys and Buildsheets?
« Reply #14 on: December 01, 2021, 09:25:01 PM »
Considering that there are 5 tumblers per each lock, and let's assume 10 different lengths of tumbler, that's only 50 combinations. Back to the chalk board.
Jim
Jim - going with your assumption of 10 different lengths; associate the lengths with decimals.  Then associate the 5 tumblers with digits on an integer.  With that you would have 99,999 combinations.
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