Radiator cooled 1PA engines are a rare find and this page examines what may be the only restored radiator cooled 1PA being rallied in the UK. Many thanks to the owner, Philip Thornton-Evison for providing the photos of this nicely restored engine. Unfortunately the engine number is not available for this engine therefore accurate dating may not be possible, a rough guess would be around 1940.

The engine was recovered from a garage around 1987 and subsequently restored in 1988. The engine required a lot of work including new valves and guides, cylinder rebore, reground crankshaft/big end, new main bearings, magneto rewind and repairs to a badly frost cracked radiator.

The close up photos show in detail the differences between the standard hopper cooled engines and the radiator cooled models, in particular the flat square cylinder head if of interest, as is the original fan and radiator assembly.