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).
Faults found and actions taken regarding the servo, drive, rear axle, and shock dampers.
| Identifier | ExFiles\Box 1\4\ B001_X 100a-page159 | |
| Date | 18th December 1932 guessed | |
| -2- SERVO. The servo shaft had practically tightened up solid in the outer ball race and would not float. We have taken the shaft out and 'emery-cloth-ed{J. L. Edwards}' it until the ball race floated. The worm gear between the 2nd and first gears has approx. .050" slackness endways. We believe this should be solid. CHUNKING IN THE DRIVE. The serrated short propeller shaft has chattered in the female serrations of the drive on the gearbox. I should say by looks, they have dug in .020". There does not appear to be sufficient area of contact for the torque/lbs it has to do. RE. MAXIMUM REBOUND OF THE REAR AXLE. We have so far been unable to obtain this. We know that the permissible rebound before the damper arm is at the end of its stroke is 10.125" or 5.125" from normal position. We therefore fitted a string from the frame to the axle, 9.5" long, but our rebounds have not broken it up to the present, and darkness stopped the test. We shall carry on with this when we resume running. SHOCK DAMPERS. A knock developed in the O.S. front damper. We find the cause to be due to the biting in bolt. This had become loose allowing the shaft to rock. We tightened the nut up one full turn. G.W.Hancock. G.W.H. | ||