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).
Summary report of customer complaints regarding clutch and carburettor issues for various car models.
| Identifier | ExFiles\Box 47\3\ Scan065 | |
| Date | 31th March 1931 guessed | |
| -5- 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. TOTAL CLUTCH COMPLAINTS. March quarter. C.C. 7 14 8 10 39 } 42 W.P. - 3 - - 3 } Previous " 9 9 9 18 45 45 Six months. 16 26 17 28 87 87 CLUTCH JAGGERS. March quarter. C.C. 6 9 3 5 23 } 25 W.P. - 2 - - 2 } Previous " 4 5 9 6 24 24 Six months. 10 16 12 11 49 49 A definite cure can be effected by fitting new R.A.D. 1 type clutch fabrics. This material is now available for all Ph.I, Ph.II and 20HP cars and has been fitted to all new cars built since March 1931. See Depot Sheets Hd.{Mr Hayward/Mr Huddy}185 and Hd.{Mr Hayward/Mr Huddy}196. CLUTCH NON-STOP AND SLIPS. March Quarter. C.C. 1 5 5 5 16 } 17 W.P. - 1 - - 1 } Previous " 5 4 - 12 21 21 Six months. 6 10 5 17 38 38 Slipping is often due to overdoping but additional spring pressure is now adopted on 20 HP. and 20/25 HP. cars. See Depot Sheets Hd.{Mr Hayward/Mr Huddy}196 and Hd.{Mr Hayward/Mr Huddy}205 The latest material and additional spring pressure effect a definite cure. CARBURETTER FLOODING. March quarter. C.C. 3 1 1 - 5 } 8 W.P. - 2 - - 3 } Previous " 2 2 4 2 10 10 Six months. 5 5 6 2 18 18 Usually due to the formation of deposit on the needle valve seating. This matter is being investigated by the Experimental Dept. re stainless steel valve seats. See Depot Sheet Hn.{F. C. Honeyman - Retail orders}143. | ||