Hi Guys, I have a Carter WDO, 512S carb on my 1936 120B Conv coupe. Just giving it a clean out after 2300 mile drive around NZ South Island with 20 other Packards. A problem!! The needle valve (looks like a small version of the fuel input needle valve)fell out when I turned the carb upside down after removing the airhorn, and now I don't know which way it goes in. The screw above it seems to have a taper in the bottom so I wonder if the valve goes with needle point up toward bottom of screw. Any help welcomed ASAP as I want to put it back together. As a side note, I have had the car for 9 years and just finished a body off restoration just before the trip. It was mainly body, paint, upholstery, wiring and chrome as I have kept her mechanically excellent over recent years.

Quote:G'day cb1,
to PackardInfo. While others are helping sort out engine numbers and such, maybe you could "contribute to the cause" sooner than you think? You could do that by including your '49 Club Sedan in the Packard Owner's Registry, together with a pic, any known history and how you acquired it.

The current problem you have is almost 100% with the sending unit in the tank and not with the dash gauge but check it out as per HH56's info. You need to drop the tank to get the sending unit out, but that's pretty easy too unless it happens to be full with 25 gallons of gas, it's held in place by just a couple of cross-wired bolts - no straps. Typically you either fix the rheostat yourself if your handy, or send it away to one of the many folks who repair these. I don't know if your tank has been cleaned and coated but if not, it's a bit of an issue because of the 3 internal baffles which form 6 individual compartments to prevent sloshing. The individual compartments are connected by small metallic screens at openings in the base of the baffles, and sloshing a coating sealer in the tank often closes them off, leaving you with what might be a 4 gallon gas tank. Most tank rebuilders of these cut the top out of the tank to service the internals.

The earlier problem you had, constantly low readings, was almost certainly because all the years of use had removed the shellac from the cork float. Use of shellac today is questionable as the ethanol in gasoline is a good shellac solvent. There are other coatings you can use to coat the shellac, and some folks just replace the cork float with a brass one from a more modern vehicle. I did mine about 15 years ago and used shellac to coat the cork and it's still OK today despite the modern gasoline.

The 1934 service letters which are on this website have some information about positioning the sending unit float arm. I believe your gas gauge is a Waltham dash unit and S-W sender. It's of the "instant read" type, not the thermostaticly dampened type.

Pat, your filler is not on the rear cover. You have, like most of the 30s Packards, an "Angleset" hypoid differential which is tilted about 45 deg. to lower the driveline. Thus the rear cover is really almost an upper cover.

Your flller plug is just below the axles, on the carrier or "pumpkin" as we used to call it, rearward of the universal joint. A standard threaded NPT pipe plug with a square head. Looks the same as the drain except it is mounted higher on the case. just look around at the front of the unit, you can't miss it.

Can't help with how to remove or much info on 34's but 35-38 6 & 8's used AC gauges. In case they also used them in 34, here is a schematic and general troubleshooting description from an old Motor's manual to go along with Kev's suggestions. The basics are the same but the details are sometimes quite different between mfgs but maybe this will give a start.

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I think there is a typo in John's Monoblock chart. Instead of reading

GXXXXXX - G430000

it should read

G4XXXXX - G430000

Same goes with the G6's. So I think thats where the confusion sets in.

I know how the numbers can all run together when you are trying to author one of those tables and I had to make several corrections to my own chart to get it right.

The last revision to my chart does have the numbers in question listed correctly.

https://packardinfo.com/xoops/html/modules/article/view.article.php?246

There is a round object protruding to one side of the cover, could be a breather or maybe the filler? Should it be in the center of the cover?

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Jim, my vote is for anything service related that we don't already have here. Things like Service Letters, Shop Manual, General Letters and the such as those directly help Pre-War owners maintain and repair their Packards.

Also if you have any Packard Directory's.

Thanks again for your support in sending over that great content for the archive here. It is most appreciated!

The should be a bolt or plug style flitting on the top of the rear cover of the diff. You fill it up to that point.

Thank you BigKev!