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).
Immediate modification instruction for 20 HP pistons concerning oil flow around the gudgeon pin.
| Identifier | ExFiles\Box 105\2\ scan0187 | |
| Date | 5th September 1928 | |
| E.{Mr Elliott - Chief Engineer} Dept. X5040 BY2/G.5.9.28. C. Hs.{Lord Ernest Hives - Chair} 20 HP. PISTONS. It will be necessary to apply a simple modification to the 20 HP. piston to that recently instructed on the Phantom. The modification in question is with reference to the hole above each piston boss to permit oil to work round between the gudgeon pin and the aluminium boss of the piston with the object of taking up slack. This modification should be put through immediately. BY.{R.W. Bailey - Chief Engineer} | ||