Viewing page 354 of 415

This transcription has been completed. Contact us with corrections.

(24)

crankpins absolutely sure, as the oil is supplied to them from both the out and return lines. A second filter is inserted between the pressure jump and the crankshaft. Both oil pumps and filter are mounted in front of the engine and are consequently quite accessible.

TIMING GEAR.

The timing gear is of the epicyclic type, the cams rotating at one sixth crankshaft speed. It is mounted entirely on ball and roller bearings. There are two independent cams, for inlet and exhaust. The overhead valves are operated by push rods in front of the engine and rockers mounted on ball bearings.

INDUCTION.

The induction system is composed of pipes radiating from a central chamber contained a fan mounted on the back of the crankshaft. This not only increases slightly the volumetric efficiency but, thoroughly mixes the incoming gases and makes for almost perfect uniformity of distribution. The mixture is heated, being jacketed with lubricating oil. This not only serves to heat the mixture, but also helps to cool the lubricating oil. The car

850