Packard Forum Index » V-8 (1955-56)

The swedged end that slips into the intake "stove" is similar to what GM has used on the fitting end of steel fuel lines (to accept an o-ring seal), in recent years.

There is a special ($400) flaring tool kit that will make a variety of flares including that type for the fuel lines. Any tech at a looal GM dealership who's worth their salt will have one (or access to one); give them a try.

All: Thanks for the input, the carb is off and ready for rebuilding and didn't break off the choke tube. I suppose if it is not broken or crushed a bit of cleaning should do, right?

Thought I'd post one last photo of the truck before the new owner picks her up.

Attach file:

---

  (48.69 KB)

That is a lovely-looking truck and an artful photo. Have you considered using just a hint of fill-flash on the photo? If I had the money and the space, my favorites are the Studebaker M5 or a 201 Diamond T but alas, it's not to be.

Attach file:

---

  (16.88 KB)

Owen:

Agreed some fill flash would have been better, how does it go? "Microsoft will always give you the car you always wanted". Some nice suggestions as to the next project however. I still will continue to the end of time with the Packard but I sorta like to build the trucks. After several calls to supplier of the Rochester rebuild kits, frankly I am not very confident as to the correct one, my model is identical to the Section XII in the 55 Pat service manual, any suggestions?

Sorry just one more photo.

Attach file:

---

  (64.38 KB)

Quote:
I don't quite understand what you're asking. Any kit supplier should be able to provide you with the correct kit based on tag number.

If tag is missing and you're not sure if the carb is authentic to your vehicle, perhaps you should start another thread, since this one is titled to get the attention of those with a (Caribbean) dual carb set-up. Whether the answer is short-n-sweet or requires a lengthy exchange and more pix, the knowledge gained can be found more easily, under the appropriate topic, by future owners who run into similar problem.

If you're not sure how to start a new topic and haven't check the FAQ section, click on the Packard Forums link. Click on the forum that fits your subject - V8 (1955-56), in this case. Once the forum list loads, you can click on the "New Topic" button, near the top of the page, to start your thread.

Morgan, once the brass ID tag is missing, identifying which carburetor you have can be difficult without known examples to compare with. But most of the parts in a Rochester 4GC kit are fairly generic so the kit you have may supply most of the needed items. But might I suggest you contact an authority such as Daytona Parts or The Carb Doctor; they should be able to help you identify your particular unit by casting features & numbers, venturi & jet sizes, etc.

Owen: Thanks for the information I will check with those supplies...Sorry to have interfered with the thread...

Just a quick update: Both Carburetors have now been re-jetted and should have them back on either today or friday. I was able to find GM carburetor markings on the carburetors themself. I also examined my old 4bbl which i took off the car when I decided to put the dual carbs on and this is also a GM carb.

I will post when the carbs are installed and let you know if this has fixed the problem

packard34 -

I would expect to find GM markings on ANY Rochester carb of the period - no matter what brand of automobile they were originally intended for. Rochester Products was a division of General Motors. (Heck, you'll find emissions control parts under the hood of plenty of Chrysler Corp. vehicles bearing the Rochester Products logo, but no pentastar.) Conversely, I've never seen Packard marking on any Rochester 4GC.

If the tag numbers noted in your opening post in this thread are correct, and if the number for the rear carb is only missing a trailing zero, then the original applications appear to be:

7005900 = 1954 Olds 324-cid V8 w/ automatic trans.

7007000 = 1955 Olds 324-cid V8 w/ automatic trans.

These carbs were designed for SINGLE 4-bbl. applications, rather than a synchronized 2x4 set-up. IIRC, the only other brand offering factory-installed 2x4 4GCs in this time frame was Cadillac.

Simply rejetting might not be enough to make your Carib run properly.

For example, there are several pieces missing from the carbs as shown in your pix, like the automatic choke system - including choke valve, shaft, linkage, and (on one carb) the fast idle cam. If this was intentional, I hope the resulting vacuum leaks have been addressed.

Also, it appears that the carbs are mounted on spacers, which should not be necessary - except, perhaps, that your throttle operating linkage is incorrectly fitted/fabricated. While the pix that HH56 provided are from a '56 car, it IS (as he said) essentially the same as what's presented, in full detail, in SC Vol. 29, No. 6, p. 32.

The factory shop manual, service bulletins, and parts book already available on the PackardInfo site for your car, and I provided scans of 1955-56 Packard Rochester 4GC Service Information (carb sheets). Read them, print them, love them, share them with your carburetor specialist!!!