REBUILDING

Main nozzle (WA-1)

Metering rods (WA-1)

Rebuilding Procedures (WA-1)

Metering rod adjustment (WA-1)

CIRCUITS

TROUBLESHOOTING AND Q&A

Leaks from throttle shaft (WA-1)

Idle mixture adjustment isn’t working (WA-1)

Worn throttle shaft? (WA-1)

Surging (WA-1)

IDENTIFICATION

There are currently 8 different rebuild kits covering all of the WA-1 carburetor numbers. There is no such thing as a ‘universal’ or ‘fits most’ kit. Save yourself time and money by ordering the correct kit the first time. We do not guarantee kit fit based on application alone, there are too many variables and we have no way of knowing that the carburetor is original. Keep in mind it’s possible more than one carburetor was used on any given year/application.

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Most WA-1 carburetors have the model cast on the side like you see here circled in blue.

The carburetor will have many other markings like these circled in red. These are rasied numbers and are casting codes for the various components. These numbers do not cross to rebuild kits or parts.

The ID number you’re looking for is on a triangular brass tag like this one. It’ll be 3-4 digits with an ‘s’ stamped into it. IE 2114S.

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DON’T HAVE A CARBUETOR NUMBER?

You can start with our **application guide here,** but please keep in mind this is not accurate 100% of the time. It’s very possible your carburetor may not be original, or there maybe more than one kit for a particular year.

We can help identify the rebuild kit with the following:

PHOTOS:

DIMENSIONS:

Email your images and dimensions to [email protected] and we’ll assist you in identifying the proper kit.

When no tag is present. You can sometimes identify a WA-1 carburetor using the casting number, which is found on the throttle body. This is not definitive, but can help when trying to match a carburetor kit.

Casting Number Carburetor Number Application
154 433s Pontiac
194 425s, 466s, 467s Oldsmobile
223 413s, 416s Universal
243 426s Oldsmobile
245 432s, 463s Pontiac
253 435s Nash
288 462s Pontiac 8
290 464s, 683s Nash
298 454s Hudson
298 611s, 662s, 694s Nash
309 622s Frazer
317 530s Packard
332 477s Packard
340 481s, 504s, 508s, 764s, 765s Oldsmobile
348 494s Pontiac 6
356 496s Studebaker
368 493s Pontiac
388 537s, 717s Pontiac
485 613s, 645s Willys
538 651s, 709s, 710s, 763s Oldsmobile
592 652s, 718s Pontiac
679 746s Nash
682 749s, 755s Hudson
779 780s Nash
825 843s Volvo
910 968s, 2113s Hudson
972 990s, 2009s, 2043s, 2114s Hudson
1002 2013s Hudson

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