CRG Discussion Forum

Camaro Research Group Discussion => Originality => Topic started by: cook_dw on November 26, 2013, 01:46:12 PM

Title: Fuel Pump Stampings
Post by: cook_dw on November 26, 2013, 01:46:12 PM
I tried to raise an old thread from the dead ( :o ) but its not showing up as an active topic.

Has the fuel pump stampings been decoded?
Title: Re: Fuel Pump Stampings
Post by: paceme on November 26, 2013, 08:04:42 PM
Yes, for example JI40727 decodes to Oct of 69  J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...
Title: Re: Fuel Pump Stampings
Post by: 69Z28-RS on November 26, 2013, 08:11:04 PM
so what is the application code for the Z28?  :)
Title: Re: Fuel Pump Stampings
Post by: jdv69z on November 26, 2013, 08:19:18 PM
Here's a pic of my Oct 68 Z fuel pump
Title: Re: Fuel Pump Stampings
Post by: paceme on November 26, 2013, 08:59:06 PM
so what is the application code for the Z28?  :)

For 69 40669
Title: Re: Fuel Pump Stampings
Post by: paceme on November 26, 2013, 09:01:11 PM
so what is the application code for the Z28?  :)

For 69 40669
Here's a pic of my Oct 68 Z fuel pump

Note the HH= Built Aug of 68
Title: Re: Fuel Pump Stampings
Post by: MyRed67 on November 27, 2013, 12:22:15 AM
So just the first 2 letters is the Date Code,  the 40669 is the part #?
Title: Re: Fuel Pump Stampings
Post by: 69Z28-RS on November 27, 2013, 12:31:08 AM
Sorry to be dense.. *L*...  I could have figured that one out, even under anesthetic...  :)

I think I need one stamped 'HI 40669'..    Could one of you fellas with a pile of those in a box somewhere give me a buzz? *G*
Title: Re: Fuel Pump Stampings
Post by: MyRed67 on November 27, 2013, 06:29:01 AM
Yes, for example JI40727 decodes to Oct of 69  J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...
OK,,, I've pretty much figured out that this is not the original on my '67  327 engine.  I have this  280N40503  AC Delco pump.  I've seen a couple places that offer this 40503 pump as a repop. pump for the 40727 and 40470.  How does that date code read out?
Title: Re: Fuel Pump Stampings
Post by: 69Z28-RS on November 27, 2013, 03:58:40 PM
Sorry to be dense.. *L*...  I could have figured that one out, even under anesthetic...  :)

I think I need one stamped 'HI 40669'..    Could one of you fellas with a pile of those in a box somewhere give me a buzz? *G*

Dang.. Did I screw up that again?    What is Aug or Sept 1969?    Hi and II ??   :)
Title: Re: Fuel Pump Stampings
Post by: paceme on November 27, 2013, 06:01:41 PM
Yes, for example JI40727 decodes to Oct of 69  J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...
OK,,, I've pretty much figured out that this is not the original on my '67  327 engine.  I have this  280N40503  AC Delco pump.  I've seen a couple places that offer this 40503 pump as a repop. pump for the 40727 and 40470.  How does that date code read out?

I'm going to say 280th day of 1974. I noted previously in 71ish they started using the day instead of the month. Now could it be 1985? There are other things to look for to determine age, such as size of the AC and the weep hole configuration.
Title: Re: Fuel Pump Stampings
Post by: BillOhio on December 02, 2013, 03:48:36 AM
I have been watching  for one for my z. Hbc had rebuilt ones back ordered but they didn't seem to get any. Anyone have a pile of them and I thought Arthur Gould could rebuild them?
Title: Re: Fuel Pump Stampings
Post by: paceme on December 03, 2013, 07:49:56 PM
I have been watching  for one for my z. Hbc had rebuilt ones back ordered but they didn't seem to get any. Anyone have a pile of them and I thought Arthur Gould could rebuild them?

The last one I had rebuilt was done by Goat Hill for my 69 L34, it was a 40568. I had that done five years ago...
Title: Re: Fuel Pump Stampings
Post by: BillOhio on December 05, 2013, 01:49:15 AM
The 140 cam was put in mine about 71 and they must have changed the fuel pump. Mine is now a 234k42080. The crank was balanced and bearings were dated fall 71
Title: Re: Fuel Pump Stampings
Post by: MyRed67 on December 05, 2013, 02:49:12 AM
Yes, for example JI40727 decodes to Oct of 69  J=10 I =9 and the application is L78. The second letter is the year G= 67 H=68 . Can post more examples if needed. in 71 the coding changed to include day instead of month. Let me know if you need more info...
OK,,, I've pretty much figured out that this is not the original on my '67  327 engine.  I have this  280N40503  AC Delco pump.  I've seen a couple places that offer this 40503 pump as a repop. pump for the 40727 and 40470.  How does that date code read out?

I'm going to say 280th day of 1974. I noted previously in 71ish they started using the day instead of the month. Now could it be 1985? There are other things to look for to determine age, such as size of the AC and the weep hole configuration.
Yes Steve, it could be 1985, and that probably would make more since as that is about the time the car was rescued out of an Apple orchard.  And the coloring/plating is not all that bad.