ConcoursMustang Forums

Restoring - General discussions that span across many different groups of years and models => Drivetrain => Topic started by: jntmjt1 on March 07, 2010, 02:03:14 PM

Title: 1966 Coil date code
Post by: jntmjt1 on March 07, 2010, 02:03:14 PM

Can someone help me out with a detail on a coil?  I'm trying to figure out what the correct 4 letter and/or number date code would be on the coil's ink stamp.  The car is from May, 1966.

I don't understand how to decode those 4 letters or numbers.

Thanks for the help,
John Thomas

Title: Re: 1966 Coil date code
Post by: CharlesTurner on March 07, 2010, 02:18:08 PM

The format is typically 5EAB, which would decode to:

5=year of the decade, could be 65, 75, 85, etc...
E=Month, in this case, 5th letter, 5th month-May
A=Week of the month, A-first
B=Shift

So, a date stamp like 5EAB would mean first week of May, 1965, B shift.

Title: Re: 1966 Coil date code
Post by: jntmjt1 on March 07, 2010, 02:25:50 PM

Thanks very much for the info.  One more question... how closely would you guess the coil date should match the date the car was produced? (same month, a couple of months earlier?)

Thanks again,
John Thomas

Quote from: caspian65 on March 07, 2010, 02:18:08 PM

The format is typically 5EAB, which would decode to:

5=year of the decade, could be 65, 75, 85, etc...
E=Month, in this case, 5th letter, 5th month-May
A=Week of the month, A-first
B=Shift

So, a date stamp like 5EAB would mean first week of May, 1965, B shift.

Title: Re: 1966 Coil date code
Post by: J_Speegle on March 07, 2010, 02:45:52 PM

Quote from: jntmjt1 on March 07, 2010, 02:25:50 PM

Thanks very much for the info.  One more question... how closely would you guess the coil date should match the date the car was produced? (same month, a couple of months earlier?)

If I saw one 6 months earlier than the projected build date (all we have on the judge field at MCA) I would not find fault.

Title: Re: 1966 Coil date code
Post by: jntmjt1 on March 07, 2010, 02:54:06 PM

Thanks very much for the info.

John Thomas

Quote from: J_Speegle on March 07, 2010, 02:45:52 PM

If I saw one 6 months earlier than the projected build date (all we have on the judge field at MCA) I would not find fault.

Title: Re: 1966 Coil date code
Post by: Twilight65 on March 07, 2010, 07:30:43 PM

John,
I have a topic "Date Codes" in the First Generation 1964 1/2- 1973 Board on this forum. My May 1966 was 6EBC.
Dave

Title: Re: 1966 Coil date code
Post by: jntmjt1 on March 08, 2010, 08:30:29 PM

Quote from: Twilight65 on March 07, 2010, 07:30:43 PM

John,
I have a topic "Date Codes" in the First Generation 1964 1/2- 1973 Board on this forum. My May 1966 was 6EBC.
Dave

Dave,

Thanks very much.

John Thomas