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).
List of complaints and suggested improvements for various vehicle components.
| Identifier | WestWitteringFiles\G\August1921\ Scan62 | |
| Date | 11th February 1930 | |
| COMPLAINT YOUR REMARKS. Spring Drive can easily be assembled with the friction plates in the wrong position. Retaining bolt for spring drive turns round in crankshaft. Deeper bosses in inlet and exhaust pipes so as to enable a spanner to be got on. Cast or malleable pipes do not come out accurate. Carburetter. Adjusting screw for low speed jet awkward to operate because of screw heads. Cheese head screws for grip-ping levers on jets. Throats to be made of bronze. Drain hole to allow petrol which may collect in air-inlet to drain away. Drain plug for oil in crank-case to be more accessible. Core plugs and machine plugs should be standardised. We recommend to cast iron ones. Studs holding cylinder and head are too weak. Oil pump casing should be gun metal casting - we have trouble with the steel connec-tions screwing out. R' R' 2207 (100 L/C'H R9' 11-2-30) C/2500 | ||