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).
Confirmation of a wire suggesting an alteration to SS valve springs by increasing coil clearance.
| Identifier | WestWitteringFiles\T\2July1928-December1928\ Scan195 | |
| Date | 8th November 1928 | |
| CONFIRMATION OF WIRE. ORIGINAL HIVES. ROYCAR. DERBY. WW. 8. 11. 28. X290 +2060 REGARDING SS.{S. Smith} VALVE SPRINGS SUGGEST YOU TRY INCREASING COIL CLEARANCE OF BOTH SPRINGS POINT TWO OF AN INCH BY ALTERING BOTTOM WASHER. ELLIOTT. | ||