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).
Crankshaft wear and bearings for chassis B.28 DG, belonging to Madame Sert.
| Identifier | ExFiles\Box 146\3\ scan0262 | |
| Date | 21th December 1936 | |
| Handwritten: Tubes SWOT 1245 Bentley Motors (1931) Ltd., Rm.{William Robotham - Chief Engineer} DERBY.. Handwritten: copy to Hd.{Mr Hayward/Mr Huddy} (Works). chassis B.28 DG - Madame Sert. Crankshaft wear & bearings. Total mileage .......36,020 kms. Main journals of crank-shaft. 1. 2. 3. 4. 5. 6. 7. Max. dia. 2.248" 2.248" 2.24775" 2.248" 2.24775" 2.248" 2.248" Min. dia. 2.2475" 2.24775" 2.24775" 2.2475" 2.2475" 2.24775" 2.2475" Ovality. .0005" .00025" Nil. .0005" .00025" .00025" .0005" Crankpins ... all were found to be I.9985" The original main and big end bearings were found to be in a poor condition, cracked and loss of metal. We have fitted a set of new white metal main bearings; and a set of connecting rods complete with Hall's metal bearings. Sr/VA. | ||