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).
Log of crankshaft and main bearing measurements for chassis B.117.J.Y.
| Identifier | ExFiles\Box 114\3\ scan0135 | |
| Date | 2nd October 1937 guessed | |
| CHASSIS B.117.J.Y. | CRANKSHAFT DIAM: (AV. 6. MEASUREMTS) | MAIN BRG. INTERNAL DIA: (AV. 9 MEASURMTS) | MAIN BRG. EXTERNAL DIA: (AV. 8 MEASURMTS) | C/CASE BORE INT: DIAM. (AV. 8 MEASURMTS) | COMBINED CLEARANCE (MAXIMUM SLACK). FRONT CLEARANCE .0038" 2.2482 | 2.2620 | 2.5984 | 2.5998 | CLEARANCE .0014 | .0042 .0052 2ND CLEARANCE .0033 2.2477 | 2.2510 | 2.5951 | 2.5977 | CLEARANCE .0026 | .0059 3RD CLEARANCE .0057 2.2474 | 2.2531 | 2.5952 | 2.5981 | CLEARANCE .0029 | .0086 CENTRE CLEARANCE .0074 2.2476 | 2.2550 | 2.5950 | 2.5990 | CLEARANCE .0040 | .0114 CLEARANCE .0032 2.2475 | 2.2507 | 2.5961 | 2.5988 | CLEARANCE .0027 | .0059 6TH CLEARANCE .0053 2.2475 | 2.2528 | 2.5953 | 2.5980 | CLEARANCE .0027 | .0080 REAR CLEARANCE .0054 2.2479 | 2.2533 | 2.5938 | 2.5970 | CLEARANCE .0032 | .0086 | ||