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Show UNIQUE OILING SYSTEM IS BIG FEATURE IN 1035 CHEVROLET OAKLAND, CALIFORNIA, March 4 A unique method of flooding connecting rod bearings with a surplus of lubricating oil at high engine speeds is one of the new mechanical features Of the Chevrolet Chev-rolet engines in all 1935 models, according to William McMullin. Chevrolet salesman for Bradshaw. "The new oiling system assures an extra supply of oil to the bearings bear-ings when most needed, that is, when the car is being driven above 70 m.p.h. for long periods," says Mr. McMullin. "At lower engine speeds, lubri cation of the crankpins is provided by oil picked up from troughs by dippers on the connecting rods. The oil pan throughs are kept filled fill-ed by the oil pump, which feeds fresh oil through nozzles opening below the surface level. "At high engine speeds, as the pump pressure increases, oil is forced from these nozzles with sufficient suf-ficient force to cause high pressure pres-sure streams of oil to be thrown clear across the crankcase, directs ly in the paths of the connecting rod dippers. Because of the high speed of the dippers as the engine en-gine turns over 3000 or more r. p.m., they hit the solid stream of oil with so much force that tremendous tre-mendous pressure is created. The oil flows through the outlet in the top of the dipper and is forced through the deep grooves in the connecting rod bearing. The force of the impact of the oil stream provides positive lubrication (to the entire surface of the bearing, and clears away any obstruction in the 'oil grooves, much as a high pressure stream of water from a fire engine rips roofing from a building." |