List of new features for the 18-G-4 model.
| Identifier | ExFiles\Box 5a\1\ 01-page106 | |
| Date | 20th November 1930 | |
| List of New Features on 18-G-4 as at 20.11.30 For and. with Sg {Arthur F. Sidgreaves - MD} 7/E16.4.31 1. Radiator 2" lower in frame. 2. Wider Dash. 3. Larger diameter crankshaft. (Only of interest with Balance wts) 4. Low Inertia Spring Drive. 5. Higher Output dynamo, with 3 charge scheme. 6. Modified exhaust system, front expansion box and modified manifold. 7. Aluminium carburettor. 8. Servo damper. 9. Stiffer wing stays, front cross member and lamp brackets. 10. Sheathed hinge (side). 11. Stiffened bonnet and carried over dash. P.II type catches. 12. Larger diameter and more squat filler. 13. Deletion of nickel-plated strip along bottom of bonnet side panel. 14. Thermostatically operated shutters. 15. Centrally mounted radiator to overcome jellying. 16. Central lubrication connected to axles. 17. Increased diameter propellor shaft, present one dangerous if > 70. 18. New Radiator Cap. Anti-Spill 19. Hypoid rear axle. 20. Diamond engine mounting (Rear engine support) 21. Altered Trans Countershaft & floor boards - to give lower car car without Tunnel in floor | ||
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).