From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Status report on cylinder head investigation and single cylinder research items.
Identifier | ExFiles\Box 30\4\ Scan149 | |
Date | 13th April 1934 guessed | |
(5) ITEM DESIGN POSITION. CYLINDER HEAD INVESTIGATION AND SINGLE CYLINDER RESEARCH. Ramp cylinder head for single cylinder (3"bore) For Straight '8' engine. In hand. Cylinder and fittings - 3" bore Straight '8' engine - Single Cylinder Test Unit. In hand. Ramp cylinder head - For 5" x 5.5" complete engine. See RR.'A' engine. Inlet valve rocker to increase valve lift to .425". 3.25" x 4.5" Single Cyl.Unit. Completed. End cover and breather modifications. 3.25" x 4.5" Single Cyl.Unit. Completed. Larger exhaust valve in ramp head. 3.25" x 4.5" Single Cyl.Unit. Completed. Valve and cam lifts - ramp cylinder head - Kestrel Single Cyl. Unit. Completed. Valve rockers for Pent House Roof Cyl.Head - Kestrel single Cyl.Unit. Completed. Modifications to ramp head - 3.25" x 4.5" Single Cyl.Unit. In hand. Investigation of separately spring valve push rod. In hand. | ||