Packard Forum Index » Project Blogs

Thanks guys. You saved me from looking foolish again on the phone. Looks like I will keep looking. The AC RPD was on one of the halves bolted together with the slotted screws, along with Made in USA. I'll use Guscha's links to see if I can find numbers in those areas.

AC pump numbering:

Attach file:

---

  (155.61 KB)


  (110.56 KB)

Thanks Owen_Dyneto! I checked the flange but did not see any numbers. I'll concentrate on that area again and see what I can find.

Big Kev's pictures - especially the 2nd one down in this series, are a Godsend to me - now I finally know what the curved piece of sheet metal I found in the trunk is for. The heat shield for the fuel/vacuum pump!
Thanks to you both!

OK guys, I think I might have it, even though it is not where the literature says it should be. I looked all over the pump, scrubbing it with an old toothbrush looking for numbers. Nothing. I concentrated on the flange area and still nothing. Then I saw 1523215 in raised numbers on the fuel pump arm. That number seems to follow the first replacement pump guide Owen_Dyneto posted. In his literature, it says the number could be on the mounting flange or on the diaphram flange. I didn't even think to look at the arm. I assumed it was just a part number for the arm.

I guess that means I have a replacement pump?

Attach file:

---

  (81.91 KB)

Not quite! That is the part number or casting number for the lifter arm. The number you are looking for is very small, and will be along the upper or lower side of the flange for the pumping chamber. Look for characters that are about 2.5 mm across.

Tom

Come on! That sucks! I have been all over this pump and I swear there are no numbers on it. I see Pat Pending, AC RPD, Made in USA and that's it! The bolt on the dome has a 1079 on it. Opposite side bolt has a triangle and 2. I scrubbed the flange and do not see anything either. This is very frustrating.

Edit: Here are pics of what I have found on the pump.

Attach file:

---

  (78.99 KB)


  (92.62 KB)


  (68.15 KB)


  (72.06 KB)


  (70.54 KB)

8-31-11

Until I get my fuel pump number figured out, I moved on to another project: reinstalling the manifolds.

I ran a tap through the nuts I painted the other day and ran a die on the studs on the engine. Then I removed the paper I used to block up the holes to protect the engine from debris.

My car came with a set of Fel Pro gaskets so I used them. They are not the metal kind, but a cardboard type material. The box says that they will include sealant when necessary with their gaskets. There was none in the box. I also checked the service manual and they did not mention using sealant so they went on dry. I hope I won't regret it later.

I didn't notice before, but I had 4 washers that were thicker than the other 2. I also had 4 thicker nuts than the other 4. I used the thicker washers with the thicker nuts. I decided to use them on the inner studs figuring it needed the stronger parts because of extra weight in that area. Who knows, maybe the difference was just because some mechanic only had those lying around and used them.

Weapon of choice for tightening the nuts was a "c" shaped box wrench. I had easy access to all the nuts with it. I bought a set after reading Owen_Dyneto recommending them in a post for the hard to reach nuts. Worked perfectly.

According to the manual, I was supposed to loosen the two manifolds when tightening to the block. I was afraid to do that. I had tried to loosen them previously, but they were on there pretty good and I was afraid of breaking one. Again, I hope I don't regret it later.

Attach file:

---

  (128.27 KB)


  (118.79 KB)


  (93.78 KB)

Quote:

Tom (34PackardRoadsta), I espoused the same idea and sent Charles even a call for perseverance via PM to motivate him to look for a very small casted item number. But meanwhile I believe there is no other number.

Charles, when looking to the number you have found and compare them to the numbers in the conversion chart from Dave and compare them to the number on the pump of the old Jeep then you will always find the same pattern: seven digits which starts with "152". The conversion chart calls it prefix number. I feel optimistic that the casting number could help you.

Here are some photos of the number stamped on the mounting flange of an AC fuel pump. This one is a number 9116.

The pump that you have is a Type AJ and the original AC number should be 3867 (Full number 1523867)
These were used for many Packards with vacuum wipers from 1938 to 1950 plus early 1951 200 models up to engine number J-233206.
The number 1523215 arm is correct for the 3867 pump.

You will get the right rebuild kit if you use the 3867 number.

The numbers shown in the catalog page posted by Owen-D are for replacement pumps which were a universal type that needed to have the fuel and vacuum covers rotated to the correct orientation and have the arm from the original pump installed.

Attach file:

---

  (91.42 KB)


  (63.99 KB)