Inspection report detailing the condition of various engine components following a test.
| Identifier | ExFiles\Box 11\3\ 03-page546 | |
| Date | 26th November 1931 guessed | |
| (2) PISTONS General condition fairly good. Carbon deposit hard but not excessive. Several ring stops were loose, and one stop had broken off, broken portion having disappeared. Scraper ring grooves and oil holes in pistons and scraper rings were badly carboned up. Spring Drive General condition including fabrics, good. Damping load 16 lbs at 17¾" rad. Water Pump Drive Condition good except for badly worn fabric coupling. Dynamo Drive Condition good. Ignition Gov. Condition good. Oil Pump Bearing Bushes (BZ/PC) worn, clearance in each case being .0025" on diameter. Water Pump Nitralloy rotor spindle was corroded and badly rust pitted at rotor end. The rotor was also badly worn as shewn where end thrust is taken on the whitemetal bush. CORROSION ON THIS PORTION WORN HERE Auto-Kleen Filter Condition good. Oil Relief Valve Condition good. Valve loadings as at commencement of test. Condition of all other parts good. Appreciable yellow discolouration had occurred on all internal parts. | ||
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).