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 crankshaft and bearing wear measurements and condition for chassis B.28.DG.
| Identifier | ExFiles\Box 146\3\ scan0197 | |
| Date | 3rd December 1936 | |
| 1020 To Bentley Motors Ltd. DERBY ................Rm.{William Robotham - Chief Engineer} Le des Levallois Sr/VA6/GM.3.12.36 re: CHASSIS B.28.DG - Mr. SERT Crankshaft and bearing wear. Mileage 36020 Kms. We have dismantled the engine of this car and the following is our report: CRANKSHAFT: Max. & Min. ( dia. of main journals. ( 2"248 2"248 2"24775 2"248 2"24775 2"248 2"248 2"2475 2"24775 2"24775 2"2475 2"2475 2"24775 2"2475 Ovality: .0005 .00025 .00000 .0005 .00025 .00025 .0005 Crankpins ) I"9985 I"9985 I"9985 I"9985 I"9985 I"9985 --- Main bearings whitemetal:- There is a fair amount of metal missing from the intermediate & central bearings. The bearings are also in a cracked condition. BIG END BEARINGS WHITEMETAL :- Metal has broken away from the upper halves and they are also in a cracked condition. We are fitting new main and big end bearings. Swdl{Len H. Swindell} The main bearings seem poor for 20,000 miles Rm{William Robotham - Chief Engineer} Sr/VA.VA | ||