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).
List of engine and chassis modifications for a 10,000 miles Bentley test.
| Identifier | ExFiles\Box 84\1\ scan0234 | |
| Date | 27th January 1934 guessed | |
| 10,000 Miles Test Bentley. Engine. - (1) Light alloy rods. (2) Cast iron head 1.5 inlet valves 7.35 c/s. (3) Lighter flywheel. (4) Pistons to give increased power. (5) Textolite timing gears. (6) Larger starter motor, R.R.Sch.508. (7) Double contact breaker Lec.3323. (8) Crankshaft with integral balance weights. Chassis. - (1) Peregrine steering. (2) 14" front drums. (3) Direct braking to all wheels. (4) Needle bearing servo bridge. (5) Spherical bearing equaliser shaft. (6) Protected brake adjustment R.Sch.3931. (7) Strengthened axle and 3 stud pivot flange. (8) Harrison radiator. (9) Outside tank filler, R.Sch.3929. (10) Strengthened wing stays, R.R.Sch.573. (11) Individual adjustment of shock dampers R.Sch.3941 (12) Firth's springs with rolled eyes. (13) Mud excluder for side and cross steering tubes, R.Sch.3948. (14) Rubber rear engine mounting. (15) Forged steel clutch pressure plate. (16) Stop lamp switch, R.R. Sch.560. (17) Petrol tank anchorage, R.Sch.3945. (18) Road tools under bonnet, R.R.Sch.560. (19) Sheet metal floorboards. (20) Modified bonnet rests, Lec.3773. (21) Fabric bonnet rests, R.R.Sch.572. | ||