Issues and resolutions for an exhaust cut-out, fan, and gearbox.
| Identifier | ExFiles\Box 11\2\ 02-page264 | |
| Date | 27th May 1929 guessed | |
| -3- Cont'd. {John DeLooze - Company Secretary} (6) Remarks: We have increased the thickness of the end cover. (7) EXHAUST CUT OUT TO LOP 79871. 'We had considerable trouble with the cut out 'chattering and being noisy. The trouble was 'due to the screwed portion of the control rod 'bending, thus shortening the rod and releasing 'the load holding the valve closed. This screwed 'portion is .250" in diameter. If this diameter 'was increased we believe that the trouble would 'disappear. Remarks: The material has been altered from mild steel to nickel steel and brazing operation deleted. (8) FAN TO LCP E.77672. 'The fan bearings have been slack and noisy 'throughout the test. The fan blades have fouled 'the radiator controls when radiator was fully 'opened. The fan requires dropping to prevent 'this as the belt stretches. Remarks: Stops both ways are being instructed immediately. (9) GEAR BOX & ACTUATING GEAR TO LOP 76764 N.S.2699-700 SERVO DRIVE LOP G.76740 SOLID ENGINE COUPLING TO N.S.2812. 'We have on many occasions had difficulty in 'changing gear from 2nd to 3rd. It jams when 'trying to get through the neutral position. On 'one occasion it was some minutes before the lever 'could be released. When in third gear there is 'a knock on acceleration and on retard, this knock 'is more pronounced than with previous third gears. 'The oil leaks are slight, very much improved with 'the drilling of the air vent. The servo gears 'are noisy gears, have a very bad retard period 'and are not passable in their present state for 'production. The solid engine coupling has given 'no trouble, it appears to be sound mechanically. 'Previous trouble with the reverse is now non 'existant. The gears are very good for tone. Remarks: Mr D'Aeth has cleared this matter up and instructions are being issued to the Experimental Dept. and for production. | ||
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).