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Author Topic: 68 AIM revision Date  (Read 2266 times)
big iron
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« on: December 09, 2009, 09:09:36 PM »

To anyone with 68 AIM,
Need to know the 1st revision date on K30 A2 #1, looks like 5 ? 67. This will answer some questions about my 5E build.
Thanks,
Bob
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lakeholme
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« Reply #1 on: December 10, 2009, 08:20:26 AM »

Definitely hard to read.  Sometime in the 20s, looking at the numbers below it, the first number is definitely a "2". I was going to deduce it is the 28th, but the 28th was a Sunday in 1967...  Maybe a 24, which was a Wednesday.
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Phillip
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big iron
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« Reply #2 on: December 10, 2009, 09:23:45 AM »

Definitely hard to read.  Sometime in the 20s, looking at the numbers below it, the first number is definitely a "2". I was going to deduce it is the 28th, but the 28th was a Sunday in 1967...  Maybe a 24, which was a Wednesday.
Phillip,
How does 3 23 67 look to you?
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JohnZ
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« Reply #3 on: December 10, 2009, 11:22:12 AM »

It's 5-20-something or 6-20-something - the sheet was originally released on 5-24-67.
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'69 Z/28
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big iron
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« Reply #4 on: December 10, 2009, 01:31:39 PM »

John,
Were the revisions  in AIM done before, or after the line production change?
The reason I am asking about the revision is that I have an 5E 67 build with the correct firewall and fender-well piercing that is shown in the 67 AIM. The regulator bracket 3927351 that is shown in the 68 AIM looks like the Brk. I have, not the one that is shown in the 67 AIM 3901771. The revision indicates that there was a change that took place around my build date. Do you think that it could have been possible for an 5E build to have the newer bkt.?
I bought the car from a car rental agency in 1970 and have had it ever since.
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Mark
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« Reply #5 on: December 10, 2009, 02:25:07 PM »

Watchout when comparing Service part numbers to the Engineering part numbers used in the AIMs.  They are not the same in most cases.
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Mark C.
1969 Indy Pace Car
350/300HP RPO Z11
vtfb68
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« Reply #6 on: December 10, 2009, 10:13:49 PM »

Looks like the 29th to me.
  Victor
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KurtS
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« Reply #7 on: December 10, 2009, 10:25:46 PM »

There's no solid relationship between the AIM date and the implementation of a change on the line.
John has posted more info on it in the past, but the events can be months apart.
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Kurt S
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big iron
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« Reply #8 on: December 11, 2009, 01:33:56 AM »

There's no solid relationship between the AIM date and the implementation of a change on the line.
John has posted more info on it in the past, but the events can be months apart.
So, where revisions always done before the implementation of a line change, or could there possibly have been a line change and then the revision?
I want to thank you and all the members who try to answer my questions.
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JohnZ
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« Reply #9 on: December 11, 2009, 11:20:23 AM »

There's no solid relationship between the AIM date and the implementation of a change on the line.
John has posted more info on it in the past, but the events can be months apart.
So, where revisions always done before the implementation of a line change, or could there possibly have been a line change and then the revision?
I want to thank you and all the members who try to answer my questions.

The date in the revision block only indicates when Engineering Graphics released the revised sheet; the actual implementation date on the line was handled through the NPC (Notice of Production Change) system. Those were internal documents, and seldom saw the light of day. Generally speaking, implementation occurred after the revised sheet was released, but some changes occurred prior to the revisiion date; you'd need the signed-off NPC (which had the VIN of the first car with the change implemented) to know for sure.
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'69 Z/28
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big iron
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« Reply #10 on: December 13, 2009, 09:36:54 PM »

JohnZ,
Thanks for the explanation.
I have read your excellent paper on the Norwood assembly line procedures, several times, and it contains a wealth of information.
I wish there was a paper on the procedures, from the conception of a revision, to Engineering Graphics, to the implementation of the revision on the line.
Your latest information has put quite a few of the pieces together for me.
Thanks again.
 Bob C
.
There's no solid relationship between the AIM date and the implementation of a change on the line.
John has posted more info on it in the past, but the events can be months apart.
So, where revisions always done before the implementation of a line change, or could there possibly have been a line change and then the revision?
I want to thank you and all the members who try to answer my questions.

The date in the revision block only indicates when Engineering Graphics released the revised sheet; the actual implementation date on the line was handled through the NPC (Notice of Production Change) system. Those were internal documents, and seldom saw the light of day. Generally speaking, implementation occurred after the revised sheet was released, but some changes occurred prior to the revisiion date; you'd need the signed-off NPC (which had the VIN of the first car with the change implemented) to know for sure.
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KurtS
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« Reply #11 on: December 17, 2009, 11:45:45 AM »

He's already written that (for another publication) too. Hopefully it will be on the site in the future.
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Kurt S
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Pex68
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« Reply #12 on: December 19, 2009, 11:21:20 PM »

Any hint towards what the other publication would be?  Would love to read it!
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Chris P
1968 Sequoia Green SS 396/325 M20
JohnZ
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« Reply #13 on: December 20, 2009, 11:09:29 AM »

Any hint towards what the other publication would be?  Would love to read it!

The article was published in the April, 2006 issue of "Corvette Enthusiast" magazine; call (800) 448-3611 for back issues.
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'69 Z/28
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Pex68
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« Reply #14 on: December 20, 2009, 04:49:12 PM »

Awesome, Thanks John!  Look forward to reading it.
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Chris P
1968 Sequoia Green SS 396/325 M20
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