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).
Data sheet showing connecting-rod bearing clearances before and after a 10,000-mile test in France.
| Identifier | ExFiles\Box 91\4\ scan0280 | |
| Date | 29th September 1935 | |
| SPECTRECodename for Phantom III ⑤. UNIT CONNECTING-ROD BEARING CLEARANCES. PRIOR TO & AFTER 10,000 MILES IN FRANCE CRANKSHAFT - E86165. V.C.M. (PINS. 2.248 - ½) BEARINGS - E86122. R.P.BZ/L. (BORE 2.250 + ½) OUTER DIA. 2.7485 - ½ CON RODS - E86118. (BORE 2.750 + ¼) * PRIOR TO TEST IN FRANCE ** AFTER " " " TABLE DATA: COLUMN HEADERS: Bea. N°, CRANKPIN DIA., BIG-END BORE, CLEARANCE, TOTAL WEAR, OUTER DIA OF BIG-END BRG., CON-ROD BORE, CLEARANCE, TOTAL WEAR ROW 1: Bea. N°: 1 *: 2.2482, 2.2517, .0035 **: 2.2482, 2.262, .0138 TOTAL WEAR: .0103 *: 2.7479, 2.7502, .0023 **: 2.7385, 2.75125, .01275 TOTAL WEAR: .01045 ROW 2: Bea. N°: 2 *: 2.2483, 2.2517, .0034 **: 2.2482, 2.261, .0128 TOTAL WEAR: .0094 *: 2.7478, 2.7502, .0024 **: 2.7415, 2.75125, .00975 TOTAL WEAR: .00735 ROW 3: Bea. N°: 3 *: 2.248, 2.2512, .0032 **: 2.248, 2.263, .015 TOTAL WEAR: .0118 *: 2.7478, 2.7501, .0023 **: 2.739, 2.75175, .01275 TOTAL WEAR: .01045 ROW 4: Bea. N°: 4 *: 2.2482, 2.2516, .0034 **: 2.2482, 2.262, .0138 TOTAL WEAR: .0104 *: 2.7479, 2.7502, .0023 **: 2.7385, 2.7515, .013 TOTAL WEAR: .0107 ROW 5: Bea. N°: 5 *: 2.2483, 2.2517, .0034 **: 2.2483, 2.262, .0137 TOTAL WEAR: .0103 *: 2.748, 2.7503, .0023 **: 2.739, 2.75175, .01275 TOTAL WEAR: .01045 ROW 6: Bea. N°: 6 *: 2.2483, 2.2517, .0034 **: 2.2482, 2.264, .0158 TOTAL WEAR: .0128 *: 2.748, 2.7502, .0024 **: 2.738, 2.752, .014 TOTAL WEAR: .0116 | ||