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).
Completed lubrication and specification questionnaire for three 1935 car models.
| Identifier | ExFiles\Box 145\1\ scan0116 | |
| Date | 1st January 1935 | |
| COPY CONFIDENTIAL. GARGOYLE Regd. Trade Mark. VACUUM OIL COMPANY, LTD., CAXTON HOUSE, WESTMINSTER, S.W. 1. SPECIALISTS IN LUBRICATION. MARKETERS OF MOBILOIL, MOBILGREASE AND VOCO SPECIALITIES. Motor Cars 1935 These brief particulars are requested for record purposes and to facilitate discussion with your Technical Staff. They will also assist us in rendering efficient lubrication service to your agents in all parts of the world. NAME AND ADDRESS OF MANUFACTURER:- ROLLS ROYCE LTD. DERBY. TABLE DATA: | | BENTLEY 3 1/2 LITRE | ROLLS ROYCE 20/25 h.p. | ROLLS ROYCE 40/50 h.p. | | :--- | :--- | :--- | :--- | | **ENGINE** | | | | | Type (if proprietary, state make and model only) | Own | Own | Own | | Number of Cylinders | 6. | 6. | 6. | | Bore and Stroke | 3 1/4" x 4 1/2" | 3 1/4" x 4 1/2" | 4 1/4" x 5 1/2" | | Maximum B.H.P. @ R.P.M. | - | @ | @ | | Material of Pistons | A.A. | C.I. | C.I. | | Material of Cylinder Bores | C.I. | C.I. | C.I. | | Material of Crankshaft Bearings | White Metal. | White Metal. | White Metal. | | System of Lubrication (Wet or Dry Sump) | Wet. | Wet. | Wet. | | Main Crankshaft Bearings (Pressure/Splash/Gravity) | Pressure | Pressure | Pressure | | Connecting Rod Big End Bearings | " | " | " | | Connecting Rod Small End Bearings | " | " | " | | Oil Filters (Make and Type fitted) | Own, Gauge. | Own, Gauge. | Own, Plate Filter | | Are Oil Coolers fitted? | No. | No. | No. | | **GEARBOX** | | | | | If proprietary, state Make and Type | Own | Own | Own | | Is Synchromesh fitted? | Yes | Yes | Yes | | Is Free-Wheel fitted? | No | No | No | | Is Free-Wheel separately lubricated? | No | No | No | | Is Engine Oil or Gear Oil preferred? | Engine. | Engine. | Engine. | | **BACK AXLE** | | | | | Type (Bevel, Hypoid, Worm, etc.) | Hypoid | Spiral Bevel. | Hypoid. | | Are Rear Wheel Bearings separately lubricated? | AN | | AN | | Is Engine Oil or Gear Oil preferred? | E.P. Lubricant essential. | Axle Oil. | E.P. Lubricant essential. | | **UNIVERSAL JOINTS** (Make and Type) | Own | Own | Own | | **SHOCK ABSORBERS** Front (Make) | Own | Own | Own | | **BRAKING SYSTEM** (Mechanical, Hydraulic, etc.) | Mechanical? | Mechanical. | Mechanical. | | **WATER PUMP** (if fitted), lubricated by grease gun or grease cup? | . | . | . | | **CHASSIS LUBRICATION** If "Centralised," state Make and Type | One-shot. | One-shot. | One-shot. | | **CAPACITIES** | | | | | Engine Oiling System (Quarts) | 6 | 6 | 6 | | Gearbox (Pints) | 4 1/2. | 4 1/2. | 7. | | Back Axle (Pints) | 1 1/3. | 1 1/3. | 4 1/4. | | Engine Cooling System (Pints) | 27 1/2. | 29. | 45. | Signed :— Date :— C 10—25982 Columns for Additional Models are provided Overleaf. | ||