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).
Test report detailing the condition of front and rear axles and road springs.
| Identifier | ExFiles\Box 11\5\ 05-page215 | |
| Date | 7th March 1936 | |
| -6- REAR AXLE, LOP. G.80430, RR.Sch.457. AXLE No. EX.28 - 158 RATIO 12 x 41. A rather bad period of noise at 40 m.p.h. developed during the latter part of the test. It had become distinctly noticeable at the finish. There was an oil leak down the o.s. axle tube, but not to the extent as reported at 10,000 miles. The drain hole had been capable of preventing the oil getting on to the shoes. The near side remained free from leaks. REAR ROAD SPRINGS, LOP. F.83195. Firth's low rated. Piece No. F.83330. Type 1400 lbs. Initial camber - 10 - 18". Loaded length - 66". The rear springs gave no trouble. The anchorage to rear axle remained firm. Lubrication of the shackle pins appeared to be ample. No fractures of the leaves observable. FRONT AXLE. R.Sch.3821, CL.686, AND FRONT AXLE CONTROL. RR.Sch.411 - 469. The anchorage of the front axle to the road springs remained firm. No weakness was shown. Pivots did not show any wear. The lubrication was ample. The axle control became slack in the ball joints on nearside and offside, which caused, in conjunction with the flexible mounting of the engine, tramping of the axle to take place after sharp braking at speed. The looseness also caused jaggering of the brakes. The lubricating hole in the rear pad of the nearside became blocked up with swarth. FRONT ROAD SPRINGS, LOP. F.83195. Firth's low rated. Piece No. F.83318. Type 1200 lbs. Initial camber 4.47". Loaded length - 45". The front springs, from an outside examination, did not show any signs of fracture. Anchorage to axle remained firm. Lubrication of spring shackles appeared to be ample. | ||