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Author Topic: How to tell an original gas tank?  (Read 2179 times)

Offline machm1970

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How to tell an original gas tank?
« on: December 29, 2015, 03:49:44 PM »
I'm disassembling my '70 Dearborn built convertible. The gas tank looks old, but there's no drain plug. How do I tell if it's original?
Thanks,
Matt
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Offline preaction

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Re: How to tell an original gas tank?
« Reply #1 on: December 29, 2015, 04:51:02 PM »
67-68 has a date stamped on the flange.
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8F02R218047-  July 18 1968   Dearborn

Offline Bob Gaines

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Re: How to tell an original gas tank?
« Reply #2 on: December 29, 2015, 05:07:40 PM »
Quote from: machm1970 on December 29, 2015, 03:49:44 PM
I'm disassembling my '70 Dearborn built convertible. The gas tank looks old, but there's no drain plug. How do I tell if it's original?
Thanks,
Matt
I believe it was later 69 production that the drain plugs were eliminated from the assemblyline tanks.
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Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline svo2scj

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Re: How to tell an original gas tank?
« Reply #3 on: December 29, 2015, 07:37:29 PM »
MY late 69 SCJ had the original tank (look like this) ! 

I used OOOO steel wool and phosphate to clean

 ALmost positive that there is a date stamp on the seam - I"ll bet Marcus will see this and WILL BE A TOPIC !! LOL
THere are not many that know the USS run numbers on there cars as the stamp MAY or MAY NOT be on 100%   Mine wasn't all there but nes 69 7236 was.

Mark
P.S.  Phosphate removes ink !




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1969 R Code , Sportsroof (non Mach) W Axle
AB , Standard Interior  San Jose built 4/22/1969

Offline machm1970

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Re: How to tell an original gas tank?
« Reply #4 on: December 29, 2015, 10:38:13 PM »
That's awesome, that's what mine looks like. My next question was going to be restoration. Where can I get the phosphate?
Thanks,
Matt
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Offline Toploader

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Re: How to tell an original gas tank?
« Reply #5 on: December 30, 2015, 03:26:19 PM »
Quote from: machm1970 on December 29, 2015, 10:38:13 PM
Where can I get the phosphate?

Yes, I second that question. What exactly do you mean by "phosphate"? Thanks.
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1965 Californian Built Silver Blue Convertible

Offline svo2scj

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Re: How to tell an original gas tank?
« Reply #6 on: December 30, 2015, 11:34:54 PM »
I used Eastwood METAL BLACKENER SOLUTION .  It says it is Selenious Acid.  A little goes a long way as you just wet the pad a few times. 

Eastwood is expensive and this is the probably not the BEST use of product  - but the result were great.  I also used this for the brake lines, gas lines and driveshaft all reused on my car.    (I know that most can't do to rust)   

Mark
P.S.  Yeah I know -those that know me know "I'm mad at my money!" so when someone says " I used a Brillo pad" - DO THAT !
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1969 R Code , Sportsroof (non Mach) W Axle
AB , Standard Interior  San Jose built 4/22/1969

Offline specialed

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Re: How to tell an original gas tank?
« Reply #7 on: January 01, 2016, 02:37:10 PM »
assembly line tanks had a date stamped by seam weld lh side on last tank I looked at
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Offline Brian Conway

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Re: How to tell an original gas tank?
« Reply #8 on: January 01, 2016, 05:29:24 PM »
...so that would make it the down side of the mounting flange and unviewable when installed.  Brian
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5RO9A GT  4 Spd Built 5/29/65
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Offline J_Speegle

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Re: How to tell an original gas tank?
« Reply #9 on: January 01, 2016, 06:28:40 PM »
Quote from: Brian Conway on January 01, 2016, 05:29:24 PM
...so that would make it the down side of the mounting flange and unviewable when installed.  Brian

Yes from the ones I've seen - like some of the driver's side trunk floor stamping date locations
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Jeff Speegle

Anything worth doing is worth doing concours ;)
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