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 report detailing the condition and measurements of the crankshaft and bearings for chassis B.105.CW.
Identifier | ExFiles\Box 146\3\ scan0187 | |
Date | 30th November 1936 | |
To Bentley Motors Ltd. Derby ..................Rm.{William Robotham - Chief Engineer} c. to ...................Hd.{Mr Hayward/Mr Huddy} SWDL{Len H. Swindell} Levallois Sr/VA3/GM.30.II.36 re: Chassis B.105.CW Total mileage : 36000 Miles. We have dismantled the engine of this car and the following is our report upon the condition of the crankshaft and the main and big end bearings: Crankshaft ( 1 2 3 4 5 6 7 Max. and ) 2"248 2"248 2"2475 2"2475 2"2475 2"2475 2"24775 Min.diamet.( 2"24775 2"24775 2"24725 2"247 2"24725 2"24725 2"2475 Ovality: ( .00025 .00025 .00025 .0005 .00025 .00025 .00025 Dia. of ) crankpins ) 1"998 1"998 1"998 1"998 1"998 1"998 --- BIG END BEARINGS AND L.B. TYPE :- The condition of the lead bronze bearings are OK. These bearings have covered 10206 miles and no wear has taken place. MAIN-BEARINGS WHITE METAL :- The front, central & rear bearings are in a fairly good condition, the whitemetal shows no signs of having cracked. The intermediate bearings are in a cracked condition and there is a fair amount of lost metal from these bearings. Sr/VA. | ||