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).
Modification of worn Phantom Automatic Tappet Plungers.
| Identifier | ExFiles\Box 17\6\ Scan183 | |
| Date | 27th February 1934 | |
| X 7060 To RHC.{R. H. Coverley - Production Engineer} Ha/Std.2/KW.27.2.34. We send you herewith a set of Phantom Automatic Tappet Plungers - we find that the ball valve seating and ball valve movement check seating have both worn badly in many cases, allowing the ball valve movement to increase. Will you please give each of these seatings a .015" chamfer and re-set ball valve movements to give .007" to .010" movement. Ha/C.S. Steadman. | ||