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).
Fault analysis chart tracking various engine issues over the first six months of 1939.
| Identifier | ExFiles\Box 131\3\ scan0111 | |
| Date | 30th June 1939 guessed | |
| 1939 JAN FEB MARCH APRIL MAY JUNE ENGINE THROTTLE STICKING DUE TO RETURN SPRING STRETCHING DISTORTION OF THROTTLE BODY GUMMINESS A - NEW SPRINGS B - LUBRICATED C - DISTORTED D - SHORT LINK FITTED Data points in Jan: 11B, 3C, 13, A Data points in Feb: B, C, A, A, W301 Data points in Mar: A, W328, A, 7, C, C Data points in Apr: C, A Data points in May: D, A, C Data points in Jun: C, D, A Note: MODIFIED SPRING ANCHORAGE AND NEW SPRING IS BEING FITTED NOISY VALVES GEAR DUE TO WORN TAPPETS ROLLERS AND PINS Data points in Mar: 6 Data points in May: P.241, P.235, P.228, W.357 Note: 21000. MILES APRIL 28907 MILES HEAVY OIL CONSUMPTION A B LOSS OF OIL PRESSURE WHEN CORNERING Data points in Feb: 7, B, K, P169, P161, P159, W316 Data points in Mar: A, W316, W320, K Data points in Apr: A, K, P199, P200, W336 Note: SECTION RING FITTED POOR PERFORMANCE IRREGULAR SLOW RUNNING Data points in Feb: W.301 Data points in Mar: 4, K, P189 EXHAUST MANIFOLD STUDS BROKEN Data points in Mar: 4 Data points in Apr: CRACKED MANIFOLD Data points in May: W.357 Note: VALVE SEATS DISTORTED M.R. SERIES GWH{George W. Hancock - Head Chateauroux} 3 | ||