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 modifications and part specifications for various vehicle components.
| Identifier | ExFiles\Box 169\1\ img039 | |
| Date | 14th April 1930 | |
| (3) RHC{R. H. Coverley - Production Engineer}/WSC{W. S. Cassel}/MS14.4.30. Dashbrackets & Footboards to L.O.P. F.79859. "E" Type Dashboard F.79633. Autovac & Piping to L.O.P. F.79884. Enots Filter. (1) Increased dia: feed holes. (2) Filter plates removed and replaced by Porous pot type M.92. Autovac. (1) Larger Float Chamber tank and valve supplied by makers. (2) Non-return valve fitted in Petrol feed pipe. (3) New Petrol supply pipe E.81903 to Carb. for improved inlet. Oil Pump on Dash & Pipe Fittings - N.S.3064. 50% increased Bijour Pump (To follow). Pedals to L.O.P. F.79749 ("E" Type). Strengthened supporting stays fitted to clutch & Pedal shaft to drgs: Ex.4697. Rear Hydraulic Shock Dampers to L.O.P. F.81719 - N.S.2994. (1) Nitralloy Connecting Links F.75466. (2) Connecting Tubes with balanced spring control. (3) Loading = H.P. 100 lbs. L.P. 100 lbs. Front Axle Control Dampers to L.O.P. F.79507. (1) F.80753 Eye Bolts in Nitralloy. (2) Loading = H.P. 90 lbs. L.P. 90 lbs. contd. | ||