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).
Specification sheet for the Bensport Series I experimental and production chassis.
| Identifier | ExFiles\Box 3\4\ 04-page229 | |
| Date | 10th February 1933 guessed | |
| BENSPORT SPECIFICATION SERIES I. Layout of 1st. Experimental Chassis - Lec.3280. Production Chassis Four Door Sports Saloon - H.Sch's 3685 and 3686. The standard 20/25 sections are those of 'Z' Series. Section. Description. Design. Crankcase & Bushes,Liners, Caps &c. for 2.250 } Lec.3324 Bearings. journals. Lec.3300 Studs for Bearing Caps with wider centres. Lec.3319 Facing,guides &c. for petrol pump. Lec.3269 Flywheel casing and end same as 20/25. Lec.3374 Magneto bracket facing not required. Oil filler facing in new position. Torque arms at rear end modified. Dynamo drive modified to engine speed. 40/50 dynamo cradle. Lec.3316 Bottom half to be standard 20/25. Control bracket facings shown on Lec.3396 ventilating holes in top half. Torque Reaction As fitted on the 1st.exp. car but Lec.3275 Dampers. modified to suit the revised Lec.3374 dynamo drive. Crankshaft. 2.250 dia. journals 6/8 balance Lec.3284 scheme. Material V.C.M.ss{S. Smith} bb standardised for future 20/25 series. Front and rear ends as standard 20/25. 3 oil holes in journals. Spring Standard 20/25 with strengthened Lec.3384 Drive. friction plate. Lec.3398 Starting handle dog new to. Pan pulley dia. may be reduced. Connecting Standard 20/25. Rod. | ||