Author Topic: Decode water pump date code  (Read 208 times)

Offline SCJSTU

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Decode water pump date code
« on: June 24, 2017, 10:12:25 AM »
Water pump that came off my June 70 built Mustang with a 351C has a date code of

G
F23

What does this decode to?
« Last Edit: June 25, 2017, 08:04:08 AM by SCJSTU »
1970 Mustang convertible 351C auto/air built 6/70 Dearborn
1956 Ford F100 Big Window 392 Hemi
1961 Ford Econoline Pickup
1961 Falcon 2 Door Station Wagon 302V8
2004 Mach 1 Azure Blue
2006 Mustang GT supercharged

Offline 7Lscjracer

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Re: Decode water pump date code
« Reply #1 on: June 24, 2017, 12:46:14 PM »
F23 is June 23rd, but that G is a mystery to me.
Sure it's not a 0 for 1970?
Here's a 1970 Dec 22nd date coded 351C water pump.
69 Mach 1 San Jose Nov. 68 build

Offline J_Speegle

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Re: Decode water pump date code
« Reply #2 on: June 24, 2017, 02:57:32 PM »
Not a "G" but I believe it was a "makers mark"  identifying the marker/company/plant that made that pump
« Last Edit: June 24, 2017, 03:02:49 PM by J_Speegle »
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline SCJSTU

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Re: Decode water pump date code
« Reply #3 on: June 24, 2017, 08:48:35 PM »
It must be an aftermarket replacement
1970 Mustang convertible 351C auto/air built 6/70 Dearborn
1956 Ford F100 Big Window 392 Hemi
1961 Ford Econoline Pickup
1961 Falcon 2 Door Station Wagon 302V8
2004 Mach 1 Azure Blue
2006 Mustang GT supercharged

Offline 7Lscjracer

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Re: Decode water pump date code
« Reply #4 on: June 24, 2017, 09:10:34 PM »
Here's a bunch more pics of an overpriced water pump I posted the date code pic of showing the casting number and ford logo for comparison to your pump.
http://www.ebay.com/itm/Ford-351c-water-pump-D0OE-D-cast-iron-XY-GT-GTHO-Cleveland-Mustang-Boss-/252960728017?hash=item3ae5a263d1:g:GOsAAOSwY3BZKYf~&vxp=mtr
69 Mach 1 San Jose Nov. 68 build

Offline J_Speegle

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Re: Decode water pump date code
« Reply #5 on: June 24, 2017, 10:51:59 PM »
It must be an aftermarket replacement

Don't believe so if your just going by the additional makers markings. Ford often subbed out parts to non-Ford suppliers and makers - normally multiple ones since they never wanted to be held hostage to any single source, problems or worker unrest/problems
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline SCJSTU

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Re: Decode water pump date code
« Reply #6 on: June 25, 2017, 08:02:45 AM »
Don't believe so if your just going by the additional makers markings. Ford often subbed out parts to non-Ford suppliers and makers - normally multiple ones since they never wanted to be held hostage to any single source, problems or worker unrest/problems

Jeff I don't see any other markings then those in my picture and no date code in the format from that era.......so looks unusual to me

That's why I'm thinking auto parts store reman pump
1970 Mustang convertible 351C auto/air built 6/70 Dearborn
1956 Ford F100 Big Window 392 Hemi
1961 Ford Econoline Pickup
1961 Falcon 2 Door Station Wagon 302V8
2004 Mach 1 Azure Blue
2006 Mustang GT supercharged

Offline J_Speegle

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Re: Decode water pump date code
« Reply #7 on: June 25, 2017, 02:55:51 PM »
Jeff I don't see any other markings then those in my picture and no date code in the format from that era.......so looks unusual to me

That's why I'm thinking auto parts store reman pump

Agreed after looking over the picture again - don't know how I skipped over yours and only saw the one 7Lscjracer posted  ???

Might not be remanufactured but aftermarket all the same
Jeff Speegle

Anything worth doing is worth doing concours ;)