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).
Inspection report on engine components including connecting rods, pistons, valves, and crankshaft.
| Identifier | ExFiles\Box 38\6\ Scan037 | |
| Date | 26th April 1917 | |
| H.H. 235a (500 T) (S.D: 408. 26-4-17.) Bm. 2/158/13. Contd:- This could, of course, be done in America and the rods sent over to their own crankshaft. We found on 4 of the rods that the white metal was not adhering to the edges of the rod, i.e., if we pressed the white metal, oil would squeeze out of the joint. There is no sign, however, of the white metal cracking on these rods and the bearing showed no disadvantage. We put the rods back again as they were and they are still running in that condition. The chief trouble we have with our own white metalling is the white metal cracking. PISTONS The castings for the pistons look remarkably good. There is not the least sign of the little pin holes which we always get, more or less on our pistons because of which we sand blast the tops to close them up. The condition of the pistons after running is very good. VALVES These have run through without giving any trouble We have changed the valves over when we have changed the cylinders. They have the same appearance as our own high chromium steel valves. CRANKSHAFT The crankshaft was corrected at these Works, on the flange for the annulus wheel and the flange for the front extension, before it was put in the engine, it has not given ant trouble The amount of wear is normal. Contd:- | ||