The engine has a semi-expanding type carburetor which uses a large air cleaner. Building an engine of that type is described in my Semi-Expanding Carburetor Build Note. Click here to download a PDF copy (20Mb).
JRH Scale Cars has moved. Click on the URL below to go to my new site:
I did have a completed spare engine fitted with a semi-expanding carburetor so, in the end, I decided to use it rather than follow my original plan of building a new engine. Below are detailed pictures. Unlike Pocher kits, there is no accelerator pedal mounted off the gearbox. Rolls-Royce actually mounted the accelerator pedal on the chassis rail. Click here for a comprehensive story of the build.
None of the complicated carburetor controls were included in the Pocher kits. These are based on Rolls-Royce drawings ...
Rear view of the new carburetor. The rod sticking out from behind the air cleaner is part of the control linkage for the starting carburetor.