Note: Picture to be used for reference only. Carburetor models may vary.

Note: Please read the WARNINGS below.

Note: Stromberg bowl plugs are usually replaced as part of a rebuild with the carburetor removed from the intake manifold. However, if you are experienced with Stromberg service and repair, and want to keep the linkage in place, an alternative is to remove just the carburetor bowl and airhorn, leaving the base casting in place on the manifold. Always make sure there is no fuel remaining in the carburetor fuel bowl.


a) Remove the two metering jet plugs (the two outer ones – 48) and their gaskets (44) from beneath the float bowl. Then remove the center plug (43) and its gasket (44).

b) Inspect the three gasket surfaces in the bowl casting for cuts, nicks or grooves. If anything is present that might prevent the gasket from sealing tight to avoid leaks, you may need to spot face the gasket surface to get a good fuel-tight seal. A trustworthy machine shop can do this for you. The cutter tool OD is 0.6inch.

c) With good gasket surfaces, fit a new ring gasket (44) to each bowl plug (43 and 48) and install them back into the casting. Take care to avoid cross-threading the plugs into the castings, especially the outer ones. And use the widest screwdriver blade you can, to avoid marking the slots in the plugs. At Stromberg, we use a modified dzus fastener tool. If you need them in future, packs of 10 new ring gaskets (9563K) are available from your Genuine Stromberg dealer.

You’re done! If you think we’ve missed anything or we could improve on this Genuine Stromberg ‘How To’, please let us know. Email –