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).
Copy of a wire from Mr. Royce with instructions for engine modifications.
| Identifier | ExFiles\Box 121\3\ scan0023 | |
| Date | 2nd March 1915 | |
| COPY OF WIRE RECEIVED FROM MR ROYCE 2/3/15. RE WATER CIRCULATION MEASURE WATER PRESSURE ASCERTAIN IF PUMP IS EFFICIENT OR WATER PASSAGES TOO RESTRICTED AVOID BAD HYDRAULIC SECTIONS AND LOSS OF KINETIC ENERGY FAULT NOT IN SMALL CAPACITY OF JACKET BUT IN PUMP OR PASSAGES OBTAIN PISTONS PREFERABLY CAST IRON ZEPHYRS FOR EIGHTY POUND COMPRESSION TO INCREASE LUBRICATION CANCEL HOLES IN SCRAPER RING GROOVE TRY SMALLER CARBURETTERS ONLY SMALL IGNITION ADVANCE REQUIRED. ROYCE. | ||