Weber rebuilding and restoration

Weber Carburetor Rebuilding
100-Point Weber Carburetor Restorations

From basic troubleshooting to a show quality restoration

From classic Cobras to Ferraris, we offer rebuilding and restoration service for all Weber carburetors and carburetion systems.  Specialty vehicles and collector cars sit for long periods of time, which causes gas inside a carburetor to turn into a gummy varnish. It acts like glue, cementing moving parts and clogging small orifices. The Weber IDA's and DCOE's use a brass piston for an accelerator pump. This piston rides inside a close-tolerance bore, just like a piston in a cylinder. Sometimes the pump pistons become "welded" in place from the dried varnish. Passageways inside the carburetors become clogged, especially the ones with the very tiny holes. The check valve balls also become glued in place and no longer function. When these things happen, the carburetors must be disassembled, cleaned, and rebuilt with fresh parts and gaskets.  Most Weber carburetors can be completely restored and made to operate like new again, even after 50+ years. We rebuild and restore all Weber carburetors, and we specialize in classic Ferrari, Maseratti, and lamborghini multiple carburetor rebuilds. Whether you're a collector or dealer of exotic classics, we'll be happy to provide rebuilding service for your Weber carburetors with a fast turnaround.

If a car has been sitting in storage for a number of years, there may be sediment, corrosion, and general deterioration that may render the carburetors completely non-functional. Some parts may no longer move and have become frozen, and passageways and orifices are clogged.

The photos below show what the inside of carburetors can become like from sitting over time, and why rebuilding them is a good idea.

Rebuilding and restoration service


We restore anything from individual Weber carburetors to complete assemblies.  This ultra-rare 58mmDSF carburetion system arrived in pieces and required special fabrication of some components for it to be functional again.  This is the original carburetion for the famous 1964 "flip-top Cobra".  The project was completed for Legendary Motorcars of Ontario Canada, which has been painstakingly completing the final detailing on this historic car. For a look at the vapor blasting process we use to restore our castings and brass parts, here's  a video showing how Arnold Design gets these parts to look like new again for us:

This is the same Ferrari Dino carburetion system after restoration.

The Flip-Top Cobra is shown here with both ends "flipped" up.  This one-of-a-kind Cobra was the first experimental bigblock Cobra and was fitted with a one-off all-aluminum 390 fed by four huge 58mm Webers.  This car was the original "mule" that led to the development of the 427 Cobra.  The header photo at the top of this page shows the car on the track in the 60's with battle scars. 

This is the "before" photo of a Ferrari Dino carburetion system sent here for restoration

The four carburetors above are 42 DCNF’s for an early Lamborghini sent here for a 100-point restoration. Our restorations are highly detailed; virtually no part is left untouched. The carburetors shown are almost 50 years old.

They are completely dismantled, all bearings and throttle shafts removed, and stripped to just the bare castings. The castings are sent out for vapor blasting to restore the original finish to “factory new”. All metal parts are sent to our platers to duplicate the original gold cadmium or bright zinc finish, and all brass parts are either replaced or refinished.

They are reassembled using the proper rebuild kits, floats are set to factory specifications, and each carburetor is wet-tested. The carburetors you receive back are your own, and they will look and operate as 100% new.

We specialize in the restoration of all Weber carburetors for Ferrari, Maserati, Lamborghini, as well as other 60’s-era exotics and all vintage race cars.

DCOE Before imageDCOE After

The photos above and below are all of the same carburetor, one of two 40 DCOE's done here for an '74 Alfa Romeo Spyder, shown "before and after" restoration. Click on the images for larger, more detailed pictures.

Full rebuilds and restorative work like this are common; you can ship your complete carburetion system for a total rebuild and/or full cosmetic restoration. If you would like a full cosmetic restoration, your carburetion system will look 100% new when you receive it back. The photos above will give you the idea. I've seen the worst there is; nothing scares me.

On full cosmetic restorations, your carburetors' factory hardware is replaced with fresh bits and pieces, and new linkage pieces are installed. All pieces with yellow-zinc plating will be new, and anything that detracts from the carburetors is replaced. Original screws and nuts are also replaced with stainless screws and nuts, so they will remain good-looking over the years.

The shop rate here is $105 per hour. A full cosmetic and functional rebuild on a typical 4-carburetor V8 unit requires about 15 hours, plus parts. As a general rule of thumb, the labor and parts usually come out to be about the same, which usually includes all new linkage. I can scratch-build any linkage system you need from the parts I have on the shelf, so it's a simple procedure to replace whatever you have, and improve it.

If you already own carburetors and/or a manifold, you can send them here to have a system custom built from your existing parts. I will ship you back a unit that runs and looks like a brand new unit.

Refresh, restore, or customize

Unfortunately, due to our workload, as of April 1st 2022, we no longer accept rebuild work for any Weber carburetors other than Weber IDA and IDF downdraft carburetors for V8 applications.

Mark Elder

Hi Jim

The manifold and bits have arrived. It is a thing of beauty. You have done a great job for which I am very grateful.

Thanks once again.

Mark Elder
New Zealand