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Published on Dec 20, 2010
The snow isn't going anywhere fast so I decided to bring the Ruston out for a crank up in the snow. It's -2C according to the car thermometer so possibly less than that. Never the less, the old PB fired up easily!
This engine was built during the period 1942 - 1947 and has had a hard life. Due to the original colour and the large amounts of wear on bearings, but not piston rings I suspect it was on a compressor set for starting large Ruston HR diesel engines. The silencer is also very rusted so that would follow, that would have been outside. I restored the engine earlier this year taking about 180 hours work. It's having little bits of improvement work done all the time, a new flywheel key two weeks ago for example. The next job is for me to make a new little end bearing.
The engine puts out 1.5-2HP at 700-1000RPM and has a bore and stroke of 3" by 3.5" giving a capacity of 404CC. The engine uses side valves and a very basic carburettor, the only control you have is the air shutter. The engine is seen here running at about 780-800RPM. Maximum torque at 1000RPM is 10.52lb/ft. Not bad for a very basic engine.
Seen in the photographs at the beginning and end is my 10 year old Labrador, "Monty!"