SU Carburetor and Stromberg Carburetor Rebuilding Services


Island Automotion Ltd. is on the web at

From Alvis to Volvo, Triumph to Jaguar, Rolls-Royce, Bentley, and Healey, Island Automotion has complete and extensive experience with SU carburetors. Stock rebuilds, custom rebuilds, and specialty applications can all be entrusted to Island Automotion.

Experience here is not derived just from just carburetor work, but from forty years of working on nearly every aspect of vintage cars. Now I rebuild carburetors, returning them to the condition they were in when the cars were new. Achieving that is done through proper and complete mechanical restoration, and at Island Automotion that means using only SU original equipment replacement parts, and skillful and accurate machining. Your engine doesn’t care what the carburetor looks like – only that it meters fuel and air correctly. Appearance, although important, is secondary. The engine must run properly.

So if you require professional rebuilding of SU or Stromberg carburetors, you’ve come to the right place. You have my word on that.

Rhys Kent,
Owner, Island Automotion Ltd.


Jaguar E-type Triple SU HD8 Rebuilding Service

There were three Specification numbers applied to Jaguar E-type HD8 triple carburetor installations. These were the early 3.8 AUC 946, the later 3.8 AUD 112, and the 4.2 AUD 227. All used the UM needle, and were functionally identical, but used different components in a few areas.

Island Automotion has a great deal of experience with the E-type sets, and can supply invisible modifications to improve the long term durability of the HD8 carburetor.

Rebuilds include new float valves and main jets of the latest design, along with UM needles – if you have a preference for a different profile they can be substituted at no extra charge.

Satin nickel plating, like that used by Jaguar originally, is available for any and all steel and brass components. If desired new 1/8 inch thick carb to manifold gaskets can be provided, or six regular gaskets if you have phenolic spacers, along with three air filter adapter to carb gaskets. The carbs will be adjusted to run the engine well “out of the box”. Tuning instructions are included, and help is always available by email or phone.

Please contact me for costs regarding any level of restoration of E-type HD8 carburetor sets.



  • new SU original equipment gaskets, seals, jets, and float valves

  • new throttle shafts and throttle plates

  • new original specification fuel needles for your application as needed

  • glass bead blasting of all components

  • accurate preliminary adjustments to allow easy installation and starting

  • tuning instructions written in an easy to follow format

  • repair of worn throttle shaft bores using modern Teflon coated bushings

Zenith Stromberg CD Carburetors

Stromberg 175 CD Carburetor

We can now offer all parts for, and rebuilding of, Zenith Stromberg CD carburetors. All components for these carbs are now available, from the original manufacturer. If you are looking for those hard to find needle height adjusting tools, we can supply those too. Call or write for more information on your particular application.

Additional Services

Healy BJ8 SU HD8
  • gold cadmium plating of ferrous parts for extended corrosion protection

  • custom fuel needle selection for modified engines — simply tell us your modifications, and we will suggest and supply the appropriate fuel needle(s).

  • replacement SU slotted screws for that factory new appearance

  • polishing of dashpots (vacuum chambers)


Specialty Fabrication Services

Here is a triple set of Rover HD8 carbs on a Jaguar 3.8 E-type manifold. As received the set was in very poor condition and the linkage was not working smoothly. Most troubling was the fuel manifold, made hastily to serve the three Rover carbs whose fuel inlets are arranged differently. I re-configured the linkage, rebuilt the carbs, and proposed fabricating a new fuel manifold. Consequently I made a custom fuel rail, and had it and other parts satin nickel plated, which is the process Jaguar used. Similarly a few weeks later I received a twin HD8 set that was poorly installed on the Series II Stromberg manifold. The carbs were rebuilt, the linkage re-designed, and another fuel pipe was fabricated and plated.

If you have a “hybrid” set of carburetors and want them to work as though they were installed at the factory, Island Automotion can help.