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).
Inspection report detailing the condition and adjustments made to various vehicle components.
| Identifier | ExFiles\Box 4\9\ 09-page012 | |
| Date | 10th June 1925 guessed | |
| - 4 - quietness. Rear springs and bearings appear to be O.K. Rear shock absorbers - as we were not satisfied with the damping effect of the rear shock absorbers, we dismantled same from frame, and tested the friction load. We have omitted the first stage. The friction in lbs. was initial pull 50 lbs., after which 25 lbs. only were needed. We examined plates and found very poor surface bedding of copper plates. They were also inclined to be on the tight side on the splines. After taking hard spots off plates, and freeing splines, we have now got a friction poundage of 47. Propellor Shaft. This has not developed any rattles. The universal joints appear to be in a good condition. There is a slight amount of oil thrown out of rear and front universal covers. The instructions are "1/2 a gun full of oil in each universal joint after every 500 miles". We shall cut this down to half a gun for both, to see whether it is an excess of oil or if it is thrown out by centrifugal force. Side Hand-brake Mechanism. This is quite O.K. Electrical Fittings. These are O.K. generally. The points of cut-out are burnt and pitted very badly. Earthing wire to accumulator was fouling brake rope, and the insulation had become damaged. This we have rectified. Accumulator suspension - we found that the accumulator box was chattering sideways, owing to the supporting tube to frame having a standard 0.187" bolt fitted, whilst the hole in the tube was 0.200". At the accumulator end, there is a special bolt 0.200" diameter fitted. We have not got a drawing of this, which should be right. We have enlarged hole in bracket on frame to .200", and fitted bolt to same. Exhaust Silencer & Snout. The lagging is at present O.K., but it is starting to go the same as on the S.A.C. This is due to the too thin aluminium covering, which will not stand the rough usage it gets underneath from stones, etc. All silencer brackets are O.K. The exhaust snout is quite O.K. When running at high speeds, the snout gives one the impression of choking the exhaust, on the over-run it is bad for booming. We have not had any explosions on over-run. The bolt holding swan neck to bracket on frame was missing. We have fitted one. Front Brake Equalising Shaft. This shaft, which goes through gearbox, requires a right-angled lubricator, to clear the undershield. The equaliser and shaft are in a good condition. | ||