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Szekely SR-5 / Model L
The SR-5 features a counter-balanced crankshaft, two piece, of nickel chrome steel SAE 3140, 1 25/32 inch in diameter.
The cylinders are of close-grained nickel cast iron with the head cast integral.
Equipment suppied was carburetter, magnetos, propeller hub, oil pump, spark plugs, and wires.
A starter was available at extra cost.
Type: 5 cylinder static radial L head
Rating: 70 hp at 1800 rpm
Displacement: 315
Compression ratio: 4.8-1
Bore: 4 1/8 in
Stroke: 4 3/4 in
Diameter: 31 in
Weight: 186 lb complete
Fuel consumption: not more than .60 lb/hp/hr
Oil consumption: not more than .016 lb/hp/hr
Lubrication: Gear type oil and scavenger pumps
Ignition: Dual Scintilla magneto
Carburation: Stromberg, 1 ½ balanced
Spark plugs: 2 per cylinder B.G.

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