The wear of a water pump assembly after 30,198 miles, including dimensional analysis of key components.
| Identifier | ExFiles\Box 101\2\ scan0262 | |
| Date | 4th March 1937 | |
| C.17.UNIT 4-3-37 WATER PUMP - LOP E.58437 AFTER 30,198 MILES ROTOR - E57797 (DIXTAMPO) ROTOR SHAFT - E.56627-S/AL INNER BEARING BUSH - E.54691 WM/L ROTOR SHAFT HEAVILY GROOVED ON ONE SIDE TO A. {Mr Adams} DEPTH OF .007" BY GLAND SPRING. ROTOR BLADES WORN .005-.008 BY CONTACT WITH END COVER BUSH WORN .0005 ON OUTSIDE DIAM. LEAVING .0025 CLEARANCE IN CASING PACKING SEATING BROKEN AWAY AS SHOWN DIMENSIONS OF SHAFT, BUSHES, & CASING E 56627 - ROTOR SHAFT S/AL E 54691 - INNER BEARING BUSH WM/L E 54692 - BRG & GLAND BUSH BZ/PC & WM/L E 57881 - PUMP CASING BZ/G E 56107 - GLAND INNER BZ/PC E 56106 - GLAND OUTER BZ/PL TABLE 1: DIAM. BEFORE TEST, DIAM. AFTER TEST, WEAR, CLEARANCE BEFORE TEST, CLEARANCE AFTER TEST SHAFT, .4995, .499, .0005, -, - INNER BUSH, .500, .506, .006, .0005, .007 OUTER BUSH, .500, .510, .010, .0005, .011 TABLE 2: DIAM. BEFORE TEST, DIAM. AFTER TEST, WEAR, CLEARANCE BEFORE TEST, CLEARANCE AFTER TEST CASING BORE, 1.000, 1.004, .004, -, - INNER GLAND, .999, .9935, .0055, .001, .0105 OUTER GLAND, .999, .993, .006, .001, .011 STAMP: ROLLS-ROYCE, LTD. EXPTL ROOM MAR 8 1937 DERBY | ||
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).