A bit of background to this engine. It is a Ruston Hornsby 4AP bought by me from the Absalom Sale in 1992 (I believe there is an article on the sale in Stationary Engine Magazine 226). The Engine Number is 138513 and according to Ray Hooley's records it was exhibited at the Royal County Show at Southampton and then sold in May 1929. The engine was bought as a pile of bits, the most significant missing bit being two main bearing shells. It is only recently I have had some time to start looking at it and make a start on its restoration.
The following are a series of photographs of the bits. I also have the flywheels and crank assy and the side shaft assembly
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| Main crank case with piston as bought. There cylinder bore seems in good condition |
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| Some bits |
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| Some more bits |
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| The cylinder head |
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Earlier this week I completed the disassembly of the crank, leaving the side shaft gear on the crank as suggested by Nigel McBurney. The weights came off relatively easily as shown.
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| The spanner ground down to fit into the balance weight to undo the nut |
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| A little assistance to get the nut free |
The next jobs include assessing the cylinder bore wear, looking at whether the big end bearing is reusable and making some studs to replace the missing main bearing studs and probably all of the cylinder head studs. The engine is booked into
JEL Bearings to have a crankshaft regrind and new main bearings.
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