63 Fuel Pump

[Harry S.]

Re: 63 Fuel Pump

Jeff, nice shot of the date, 63, at the bottom of the hole, just can't make out the hash marks. Can you count them to get the month?

Thanks

[Philip C.]

Re: 63 Fuel Pump

I have two fuel pumps - both with the correct AC casting and both with the correct #4657 stamped on the flange. Neither has a suffix code and yet one is a normal fuel pump and the other has the "frog pad" configuration.

--Doug (Member No. 13644)

Hi Doug I have a Feb 63 pump without the pads also, I thought someone had bolted the bottom of one pump to the top of another till now, seeing you have the same, anybody else? Phil 8063

[Timothy B.]

Re: 63 Fuel Pump

In this post there is a pic of the pump on my 63 showing the bosses for the screw holes. It's not the best picture..

https://www.forums.ncrs.org/showthread.php?t=67588

[John D.]

Re: 63 Fuel Pump

Hi Doug I have a Feb 63 pump without the pads also, I thought someone had bolted the bottom of one pump to the top of another till now, seeing you have the same, anybody else? Phil 8063

Hi Phil, Feb 63 pumps without frog pads are very typical of what you will see. John

[Paul J.]

Re: 63 Fuel Pump

In this post there is a pic of the pump on my 63 showing the bosses for the screw holes. It's not the best picture..


https://www.forums.ncrs.org/showthread.php?t=67588

Tim, I did'nt see it. This thread is about judging broach marks.

[Jeff Z.]

Re: 63 Fuel Pump

Jeff, nice shot of the date, 63, at the bottom of the hole, just can't make out the hash marks. Can you count them to get the month?

Thanks

Harry,

5 hash marks for 5/63.

Jeff

[Timothy B.]

Re: 63 Fuel Pump

Paul,

In one of my pictures the top of the fuel pump is shown with all screw bosses the same, no pads like are mentioned for later 4657 pumps. I think that's what is being described here.

[David L.]

Re: 63 Fuel Pump

I started a new thread this morning, "AC fuel pump date code research data".

Dave

[Jon R.]

Re: 63 Fuel Pump

OK, I am confused - hopefully someone can set me straight. The fuel pump on my mid May '63 300HP has "A/C" on the top and the bottom, the number "4657" stamped with no suffix letters on the flange and the date "63" in the bottom of the hole. But what I do not get is the "frog pad". Yes, I have read the archives - it is still about clear as mud - to me at least! Is the top of the fuel pump correct? I always thought it was original as most of the car is original but now I am not so sure because of this "frog pad" issue!

I have attached pictures of each of the items above - sorry about the quality, they were taken with the fuel pump in the car!

Thanks,

Jon

[Harry S.]

Re: 63 Fuel Pump

Jon, If you believe that the fuel pump is original to the car, then I would believe you have a late production car (VIN number). Please let us know if you believe the fuel pump is original.

As far as I know the only numbers on a 63 were 4657, no prefix and no suffix. Also, If you look at the top of the pump where you can see the screws come through, two of the screws go through an area that looks square (frog pad).

There are two schools of thought on the 63 pump. One is, no 63 pumps came with the frog pad. Two, late production 63's had the frog pad.

Nice picture, don't change a thing!

[Jon R.]

Re: 63 Fuel Pump

Harry,

First, the car is a sorta late production - VIN 15193. So, maybe that fits?

Second, I do believe that the fuel pump is original. It does not appear to have been replaced and there is no real reason for it to have been replaced. The car is a low mileage car - currently 12,200 miles on the odometer. The short story is that the mileage was verified when I tracked down the original owner who co-owned the car until 2004. He sold it with 11,400 miles to a large collector who put in his showroom with a few hundred other cars. I bought it in December 2009 with 11,500 miles and I have put about 700 miles on it since I purchased it. And I intend to continue to drive and enjoy it!

I had not really planned on changing the fuel pump - just trying to verify if it is indeed correct. I have been recording (written descriptions and photographic illustrations) all of the parts that have a casting number, VIN number and/or date to verify that the parts are correct.

Thanks for your help.

Jon

[Harry S.]

Re: 63 Fuel Pump

Jon, thank you.

This will help many of us!

[Bob J.]

Re: 63 Fuel Pump

OK, I am confused - hopefully someone can set me straight. The fuel pump on my mid May '63 300HP has "A/C" on the top and the bottom, the number "4657" stamped with no suffix letters on the flange and the date "63" in the bottom of the hole. But what I do not get is the "frog pad". Yes, I have read the archives - it is still about clear as mud - to me at least! Is the top of the fuel pump correct? I always thought it was original as most of the car is original but now I am not so sure because of this "frog pad" issue!

I have attached pictures of each of the items above - sorry about the quality, they were taken with the fuel pump in the car!

Thanks,

Jon

Jon,
usually when looking at 63 4657 pumps the number is stamped with a smaller size stamp.
Interesting that I see your pump still has the correct looking rocker shaft pin (w/washer) and a correct swedge.
I'm curious, which area of the four mounting flange surfaces the number is stamped on? Bob

[Jon R.]

Re: 63 Fuel Pump

Bob,

The fuel pump is on the car. I took the picture with the camera between the radiator and the pump facing the rear of the car from the bottom side. So, I guess that would be the bottom front flange? The attached photo is the one that I cut the date 'hole' detail image and the number detail image from. It also shows more detail of the front lower side of the pump.

Does this help?

Jon

Clarification - the picture is upside down!

[Douglas C.]

Re: 63 Fuel Pump

Here are pics of my regular (left) and frog pad (right) '63 fuel pumps. The second pic shows the "4657" stamps - minus the character codes on both pumps (right). The font is larger on the regular pump and upside down in relation to the frog pad pump.

Looking down the hole above the outlet, I see nothing in the regular pump and for the frog pad, I see 5 hash marks surrounding and eligible character (possibly "63").

Hope this helps,

--Doug