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Author Topic: Floor drain plug direction - face up or down?  (Read 2196 times)
68L30
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« Reply #15 on: January 07, 2014, 02:57:44 PM »

If you want to get technical, they should have a date stamp in the center of the raised portion as well.


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68camaroz28
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« Reply #16 on: January 07, 2014, 06:09:07 PM »

If you want to get technical, they should have a date stamp in the center of the raised portion as well.


Steve 
Steve, many of the plates were not stamped and I thought the stamping was really unknown to meaning, i.e. not a date stamp! Please correct me on the stamping if incorrect.
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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
68L30
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« Reply #17 on: January 07, 2014, 07:57:12 PM »

The ones I have seen are usually stamped. Mine were, and the markings are consistent with my other sheet metal stampings, namely my rear quarters, deck lid and doors. Is this the norm? I've not researched it enough to give you a strong enough answer. I've parted many cars and have seen many dates. It's always best to restore what you have found. My experience, the codes/ dates are there. Most often, they are in such poor condition most would overlook them. They depths can vary. I'll post a pic when its not arctic in my garage.


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69Z28-RS
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« Reply #18 on: January 07, 2014, 09:19:45 PM »

*L* well Steve...    in the words of many a youngster...   'You made me look!'...   Smiley
there was one I could get to in my trunk (the one that was loose and which I'd laid in upside down.. helping me understand why I said 'dome down' in an earlier post!!~  Smiley     and after a little cleaning, I did see a '38'.. can't tell if more was there, but if that's a 'week of the year', then it corresponds very well with my 3rd week of September (69) build week.   I guess that will serve as my 'new Camaro information learned today'.. Smiley
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
68camaroz28
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« Reply #19 on: January 07, 2014, 10:04:25 PM »

Four of my 6 had no stampings. I have looked through many plates of a guy who parted out 67-69 Camaros and found them both ways.  Even observed a few with two small holes and noted they seemed to be found in the trunk area but that was only two cars so might have been just a coincidence. I thought I had in my files that the stampings were never decoded to meaning and was a supplier in house thing but HuhHuh
http://www.camaros.org/forum/index.php?topic=7606.0
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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
69Z28-RS
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« Reply #20 on: January 07, 2014, 10:25:21 PM »

it seems to make sense that they would be stamped with week of productionl.. and that some would be stamped so lightly as to not be visible, or be very hard to read after 40 yrs...?
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
68camaroz28
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« Reply #21 on: January 07, 2014, 10:47:08 PM »

it seems to make sense that they would be stamped with week of productionl.. and that some would be stamped so lightly as to not be visible, or be very hard to read after 40 yrs...?

It would be interesting to note stampings as "H" sure seems to be the first letter used in many. Looking at stamped plugs some for sure seem to have been roll-marked, meaning a mechanical stamper was used which rolls circular to stamp. Used in high volume stamping!
http://www.camaros.org/forum/index.php?topic=2438.0;all
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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
Sauron327
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« Reply #22 on: January 08, 2014, 04:36:35 PM »

Plugs with holes apply to Pontiac. All were secured with sealer and hardware on the LeMans/GTO bodies I have. Stamped with H also.
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69Z28-RS
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« Reply #23 on: January 08, 2014, 04:57:13 PM »

it seems to make sense that they would be stamped with week of productionl.. and that some would be stamped so lightly as to not be visible, or be very hard to read after 40 yrs...?

It would be interesting to note stampings as "H" sure seems to be the first letter used in many. Looking at stamped plugs some for sure seem to have been roll-marked, meaning a mechanical stamper was used which rolls circular to stamp. Used in high volume stamping!
http://www.camaros.org/forum/index.php?topic=2438.0;all
I left my plug that was loose, sit in a solvent last night, and took another look today.   The stamping on it is   'H 3 6'..  my car was build week 38...    (what does the H represent?..  the mfg?)..
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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
68L30
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« Reply #24 on: January 08, 2014, 08:03:32 PM »

Here are my plugs and rear quarters, I'll have to dig up more shots come spring of my deck lid, rear body panel, outer wheel housings, doors, but they are all in the same ball park...28, 29, 30. All my numbers seam to be tight.

Steve
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68L30
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« Reply #25 on: January 08, 2014, 08:04:23 PM »

more...

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NoYenko
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« Reply #26 on: January 08, 2014, 08:28:53 PM »


I left my plug that was loose, sit in a solvent last night, and took another look today.   The stamping on it is   'H 3 6'..  my car was build week 38...    (what does the H represent?..  the mfg?)..
[/quote]
Gary, I believe it was John H mentioned the letter designated the stamping plant it was produced at. George
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Sauron327
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« Reply #27 on: January 08, 2014, 08:52:32 PM »


I I believe it was John H mentioned the letter designated the stamping plant it was produced at. George
That info is on CRG's numbers decoding page. And yes, John Z has spoken about it.
« Last Edit: January 08, 2014, 09:55:53 PM by Sauron327 » Logged
68camaroz28
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« Reply #28 on: January 08, 2014, 09:43:03 PM »


I I believe it was John H mentioned the letter designated the stamping plant it was produced at. George
That info is on CRG's numbers decoding page. And yes, Johm Z has spoken about it.
http://camaros.org/numbers.shtml#sheet
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Chick
68 Z/28 NOR 01B Orig motor/trans/rear
69 Z/28 NOR 07A Orig Block & GM Cross-ram/carbs
69 L34 Rest. Nova Father/Son Car
69 L78 Surv Nova Purch 4/69 31K miles
67 L89 Corv Tribute
68 Corv 427/400 Orig motor
07 Corv Z06
R 68Z build- http://www.camaros.net/forums/showthread.php?t=182584
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