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).
Big end bearing failure for a 35-EX Phantom III.
| Identifier | ExFiles\Box 115\1\ scan0314 | |
| Date | 9th April 1937 | |
| Stuart Piles [handwritten signature] 300A [handwritten] 1020 [handwritten] HOTEL DE FRANCE. CHATEAUROUX. Indre. France. Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW{Ivan M. Waller - Head of Chateauroux}/7/JAB. 9th April 1937. To. Rm.{William Robotham - Chief Engineer} c/o GWH.{George W. Hancock - Head Chateauroux} 35-EX. PHANTOM III. BIG END BEARING FAILURE. The work on the bearing job is now well advanced, and the connecting rods and bearings removed have been sent to you for inspection. No 6 forked rod bearing and No 4 plain rod bearing had run, in each case out of the bottom half. The other forked rod bearings, all had pieces broken out and showed signs of hammering, with the exception of No 5 which was in good condition except for slight cracks at one place. The other plain rod bearings were in good condition except for a very small piece broken out of No 6. The general condition of Nos. 1, 3, and 5 in Hoyts Z.3 was noticeably better than that of Nos. 2, 4, and 6 in W/MTL. The crank pins were measured and found to be in excellent condition. The caps of Nos. 1, 2, and 4, main bearings were removed for examination and appeared to be in very good condition for the mileage. All the pistons on B side were slightly marked on the pressure faces, and No B.4 was slightly scored. The cylinder bore was not damaged and the piston has been made O.K. The pistons and rings were in good condition in other respects. It was noted that the Tecalemit filter had been most effective in preventing any metal entering the main oil ways and the other bearings. --------- Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW.{Ivan M. Waller - Head of Chateauroux} | ||