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).
Log of troubles, mileage, and remedies from Test No. V for a 35-PK car with an adopted semi-servo scheme.
| Identifier | ExFiles\Box 73\3\ scan0261 | |
| Date | 11th December 1924 guessed | |
| SHEET 7. TEST NO.V. ADOPTED SCHEME SEMI-SERVO - 35-PK CAR. TROUBLES. | MILEAGE. | CAUSE OR REMEDY. Radiator top pipe broken. | 448 | Faulty casting - rad. stay too rigid. 3 side steering tube springs broken. | 1587 | New type springs fitted. Exhaust valve burnt. | 3177 | Old type valves fitted. Bonnet fasteners come undone. | 3402 | Not positive enough. 3 side steering tube springs broken. | 3547 | New type springs fitted. Rear shock absorber brkt. on frame bent. | 5016 RR. spare wheel carrier broken. | 5642 Engine starving - not getting sufficient petrol. | 5768 | Petrol tank filter found very dirty - after cleaning, engine O.K. Step iron broken. | 7308 | Battery and large tin petrol carried on running board. Hartford shock absorber wooden bushes failed. | 10415 Main cyl. extra oil pipe broken. | 10420 Top half crankcase cracked. | 12613 | Faulty casting. RR. wheel carrier broken. | 14050 Step iron broken. | 16914 Front spring broken. | 17245 #2 valves burnt out. | 17245 | Old type valves. TOTAL MILEAGE OF TEST 18,734 - Average speed for test 10,000 miles - 39.6 m.p.h. The general remarks on the test No.V. also apply to this test - the cars being identical. Steering nut on this car was badly worn after the test. It was not new at the beginning of test. | ||