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 the condition of a crankshaft, spring drive, and connecting rods.
| Identifier | ExFiles\Box 97\4\ scan0192 | |
| Date | 24th November 1938 | |
| - 2 - HPS.{Horace Percy Smith - Experimental Factory Mgr}6/VS.{J. Vickers}24.11.38. Crankshaft. Assembled in accordance with LOP.EB.3656 and Ex.30059 and EW.1370 Rear End Oil Retaining Groove. The crankshaft, produced in .4% carbon steel, is satisfactory; it has been magnetically tested and found free from cracks. The journal and crankpin oil caps are also satisfactory. Very little sludge has accumulated in the journals, and it is of interest to note that a General Oil Filter is fitted to this unit. For details regarding pin and journal wear see attached charts. Spring Drive. Complete to LOP.EW.1423 and incorporating EW.1727 crankshaft pinion. The general condition of this unit, including back damper wheel, friction drum and presser plate, is very good. The crankshaft pinion gear EW.1727 and the cotton ducks are satisfactory. The following variations in spring drive loadings have been noted :- Damping Load before test - 15½ lbs. " " after " - 20 lbs. Driving " before " - 17 lbs. " " after " - 16 lbs. The spring plate EB.2644 was specially tempered in accordance with BY.{R.W. Bailey - Chief Engineer}'s instructions. Connecting Rods. Assembled to LOP.EW.1764 incorporating EW.1750/1 connecting rod and cap forged to size. The die-cast bearings in A.C.9 material with thin section flanges are generally satisfactory, but slight continued. | ||