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).
Cable about the cause of cylinder knocking in Phantom cylinders.
| Identifier | ExFiles\Box 65\4\ scan0363 | |
| Date | 18th May 1927 | |
| X8050 Hs.{Lord Ernest Hives - Chair} Sft.{Mr Swift} Mx.{John H Maddocks - Chief Proving Officer} BYLL/H.{Arthur M. Hanbury - Head Complaints} 18.5.27. RECEIVED MAY 19 1927 PHANTOM CYLINDERS. I have received the following cable from Oy. in which he points out that they are of the opinion that the cylinder knocking is caused by the bore of the cylinder being distorted due to tightening down the holding-down bolts. It would appear desirable to check his results by grinding through a dummy head held down on to the crankcase. "BAILEY BELIEVE PISTON KNOCKS DUE DISTORTION CYLINDER BORE FROM TIGHTENING HEAD stop DISTORTION SUFFICIENT TO HOLD LONG PLUG GAUGE TWO THOUSANDTHS SMALL stop ON THREE CARS GRINDING CYLINDERS AFTER PLANTING BETWEEN DUMMY HEAD AND CRANKCASE OVERCOMES KNOCKING" OLLEY". BY.{R.W. Bailey - Chief Engineer} By | ||