Introduced: 1979 Discontinued: 1985 Production restarted in 2005. Replaced: SE3 Number produced: 10,461 Minor Variations in the type:
The SP5 (steam power 5) was the top of the range engine. It had a longer boiler and a twin cylinder engine unit with a reversing handle for both directions. The engines can easily drive a workshop due to the fact it has a bigger boiler and twin cylinders. The engine like the sp4 had the exhaust going to the chimney but for some reason on the sp5 there is a small pool in the bottom to collect the condensed steam and oil so it could easily poured away, and also they came with a small sponge in the bottom of the chimney to soak up any left after. This engine also featured the engine unit being mounted on a plinth. The crank ends of this engine had the words Mamod stamped into them and this can only be found on the SP5 and earlier SE3 as well as some 1960s SE1s and 2s.
The new model of SP5 produced since 2005 is largely the same as the older models, but has different crankshaft ends. Instead of the 'throws' of the other engines, the new SP5 has simpler circular ends for better balance and smoother running. The SP5D model comes fitted with a belt-driven dynamo and light.
