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).
Engine design suggestions and a list of failures that occurred during mileage testing.
| Identifier | ExFiles\Box 91\4\ scan0256 | |
| Date | 15th September 1935 guessed | |
| ( 3 ) Checking an Engine for Water & Oil Would it not be possible to have both the water filler pipe & oil filler on one side of the Engine, so that the lifting up of the Bonnet would necessitate one side only as against both at present. The Bijur Tank does not require so frequent attention. For Owners Travelling Abroad. Could not the Engine number be placed in a more visible position also as in the case of replenishing, both sides of the Bonnet have to be lifetd to find Chassis & Engine numbers. FAILURES WHICH HAVE OCCURRED DURING THE TOTAL MILEAGE. 1) Petrol supply failed due to vapour lock with heat in the Filter. 2) Great difficulty experienced in starting up Engine after standing when hot. 3) Petrol Pump failed. 4) Oil Radiator failed through soldered seams opening out. (2 failed). Oil entered water system. 5) Two Exhaust Valves. The heads broke off. 6) Radiator. Inefficient, water boiled during sustained high speed run and on climb of the Stelvio Pass. 7) Crankshaft damper load did not reamain consistent, causing pronounced period of crankshaft 40 MPH. 8) Very bad oil leak from rear Engine bearing into Clutch pit. 9) Rocker Push Rods broke. (4) 10) Ignition System. Complete failure. (Note Report) 11) Connecting Rod Bearings & main Jurnal Bearings N° 2 had to be replaced, white metal run out. (Note Report) 12) Quiet Tappets. Oil supply orifice choked up with carbon sludge. 13) Thermostat on A side for regulating water supply by pass collapsed. 14) Locks on Bonnet fell off, rivets sheared. 15) Front Engine mounting, rubbers cut internally by steel washer. [Handwritten notes] Basing Stoke [next to items 3 & 4] Sleafman [next to items 5 & 6] | ||