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).
Chassis condition report detailing wear and issues on components like axles, brakes, and clutch.
| Identifier | ExFiles\Box 179\2\ img034 | |
| Date | 1st December 1931 | |
| -2- CHASSIS. FRONT AXLE AND BRAKES. Pivot pins in fairly good condition. Actuating shafts dry due to Bijur drips having failed, drip plugs Brake drums - Worn .040 on the diameter. Cross steering tube - The ball pads were all badly grooved. We have recently found that the pads can be trapped by the biting in belts, and converted to all intents and purposes, into a solid pad. We have, however, altered the clearance at this point to overcome the trouble. Front axle control damper brackets - The contact pieces were badly grooved. There is always difficulty in getting oil to this part. CLUTCH - This was in good condition. Wear on the Ferodo linings was .020. PEDALS - The worst feature was the very pronounced wear on the gear box where the pedal shaft has a bearing. A bush is being inserted at this point to reduce the wear. Some better scheme is necessary to take care of the movement between the engine and the frame at this point. GEAR BOX - Satisfactory. PROPELLER SHAFT - Front universal in good condition. Rear universal showed signs of oil pins seizing on the inner side of the bearing. This appears to be due to oil centrifuging away from the inner side of the bearing but we are testing out a number of modifications to overcome this trouble. REAR AXLE AND BRAKES - Condition of axle gears good. The oil pipe and connections to the shock absorber ball end pin are exposed to flying stones and have been very badly knocked about. We think that this point requires attention. Several Bijurs have become choked up on the back axle. Rear Brakes - The brake drums have worn approx. .050 on the dia. The brake linings have worn down from their original thickness of .375 to a final thickness of .125. We always find that the wear on the brake lining is greatly accelerated when the drums have scored. | ||