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).
Technical report detailing issues and potential fixes for various automotive components.
| Identifier | ExFiles\Box 131\4\ scan0093 | |
| Date | 11th March 1937 | |
| (1) Cont'd.{John DeLooze - Company Secretary} -4- 11.3.37. Oil Leaks Pinion Bearing. This is caused by collapse of the GB.2035 bearing which allows the acme thread to foul the housing. There are also oil leaks caused by the tearing up of the felt washer when the bearings and acme thread have not been at fault. Oil Leaks from axle Tube flanges. This trouble has been prevalent for some time. The fitting of groover washers was instructed under the nuts holding the flanges. This was not a cure; the nuts still become loose. 5/16" nuts and bolts are to be tried. (2) The examination of the fitting up of the brakes on new cars has not proved to be all that could be desired, and many of the complaints have arisen from this source. The fabrics have not been firmly rivetted to the straps. Anchorage of shoes nipped up, uneven load of pull off springs. The seizing up of the shoe anchorage is now being corrected by cadmium plating of the steel bushes. The actuating shafts are to have extra lubrication. The oiling up of the servo swinging arm has been the chief cause of brake thumps. The latest design of friction plates should in conjunction with the fitting of sealed joints to the servo cross shaft overcome this complaint. (3) Clutches. The polishing up of the flywheel surface and a constant supervision of the Borg & Beck unit should keep these complaints down. We have come across faulty rivets on the driving plate leaving very little allowance for wear of the fabric. Jaggers appear to come up when the fabric surfaces show 90% of bedding. The spring plate does not appear to retain its properties in engaging progressively. (4) Dynamo Drive. The rubber blocks in the dynamo drive become worn by the scrubbing action of the universal. A scheme should be got out whereby the Depots could expand the rubber blocks to take out the slack. (5) Front Axle Controls. The latest scheme of improved bearings and lubrication are now being fitted and Depots are receiving modified controls. (6) Noisy Rev. Counter Drives. The cause of this is too many right angled curves and the drive is too short. | ||