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).
Faults and troubles experienced with vehicle 18.G.IV after 10,000 miles.
| Identifier | WestWitteringFiles\V\2January1931-April1931\ Scan001 | |
| Date | 30th January 1931 | |
| To Hs.{Lord Ernest Hives - Chair} From Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} 30.1.31. REPORT ON 18.G.IV. AT 10,000 MILES. SUMMARY of faults and troubles experienced. (1) Rear Axle became noisy, leak of oil down N.S. driving shaft. (2) Shock dampers loss of poundage. (3) Clutch slipping. (4) Starter Motor slipping. (5) Failure of Telegauge. (6) Brakes Squeak. (7) Loss of friction load on cross steering tube. (8) Failure of centralised lubrication pipe feeding rear axle. (9) Loss of clearance in tappets. (10) Failure of pistons due to gudgeon locking pin. (11) Exhaust Manifold broken. (12) Angle support on Dashboard, failure of rivets. (13) Body subframe bracket broken. (14) Lucas Windscreen wiper failure. (15) Elongation of diaphragm pin housing Air Valve. ENGINE UNIT No.7. The general impression of the engine throughout the mileage was its freedom from any marked crankshaft period, total absence of thuds, power up to standard, acceleration good up to 50 MPH. it has been considered smooth running with torque reaction at a minimum. with the diamond mounting set correctly i.e. the rear engine feet taking only the torque, booms in the body were decreased considerably and were looked upon as being the best results as yet obtained. we had during the mileage trouble with the exhaust valves losing their clearance during each day's run which made the engine run erratic at slow speeds. | ||