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).
Data-gathering form from Automotive Products Company, Ltd. for hydraulic tappets.
| Identifier | ExFiles\Box 121\1\ scan0324 | |
| Date | 30th September 1940 guessed | |
| G.10/B. HYDRAULIC TAPPETS AUTOMOTIVE PRODUCTS COMPANY, LTD. TACHBROOK ROAD, LEAMINGTON SPA. NAME AND ADDRESS DATE DATA REQUIRED. Engine Model................................... Class (Petrol or Diesel)............................ Bore............................................... Stroke............................................... No. Cylinders.................................. Torque Max............................. Lbs. ft. at........................... Revs. per min.................... Engine Speeds.................................... Max. R.P.M..................... Normal R.P.M.................... Location of Valves (Side, Overhead)..................................................................................... Location of Camshaft............................................................................................................ What is the Deflection (a)..................................................................................................... and Max. Run out of Camshaft (b)..................................................................................... Minimum Clearance between Valve and Piston (a)............................................................. and Point at which same occurs (b)................................................................................. Pressure in Cylinder at Exhaust Valve Opening (in lbs./in.²).......................................... Oil Pressure at various points.................................................................................................. Drawings of the following are required :– Valves, Inlet and Exhaust. Rocker Arm and Adj. Screws. Rocker Arm Shaft. Guides. Push Rods. Spring Cups and Details. Tappet and Details. Valve Springs. Camshaft. Tappet Guide or Bracket. Auxiliary Springs, if any. Cam Contour. Layout showing assembly of complete Valve Gear indicating oil passages and clearances. Timing Diagram, Acceleration, Deceleration and Velocity Curves. Separate weight of all moving parts in Valve Gear (Valves, Rockers, Tappets, Push Rods, Springs, etc.) Remarks : RECOMMENDATIONS Type........................................................ Spec. No......................................... Tappet.................................. Drawings and Installation.......................................................................................................... Recommendations, Date made................................................................................................ Remarks : | ||