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 table of vehicle component complaints and remedies over a six-month period.
| Identifier | ExFiles\Box 47\3\ Scan529 | |
| Date | 31th December 1932 guessed | |
| - 10 - 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. RADIATOR LEAKS. December Quarter. C.C. 1 8 1 12 22) 25 Bronze Water connection now being W.P. - - - 3 3) used to replace aluminium connection which corodes on Ph.II Previous " C.C. 3 4 - 10 17) 26 radiators. W.P. - 2 - 7 9) Depot Sheet No. H.219. Six Months. 4 14 1 32 51 51 TOTAL SPRINGING COMPLAINTS. December Quarter. C.C. - 34 3 34 71) 72 W.P. - 1 - - 1) Previous " C.C. 2 59 4 42 107) 107 W.P. - Six Months. 2 94 7 76 179 179 SPRINGS NOT COMFORTABLE. December Quarter. C.C. - 32 3 30 65) 65 Ph.I. Complaints can be definitely W.P. - - - - -) cured by grooving springs and modifying shock dampers. 20/25 HP. We can cure many complaints Previous " C.C. 2 55 3 37 97) 97 by modifying the shock dampers. W.P. - - - - -) Grooved springs are an advantage. In exceptional cases low rated springs, Six Months. 2 87 6 67 162 162 which are now standard, are necessary. Ph.II. Increased lubrication and higher shock damper loads effect a cure in most cases, but low rated springs are sometime necessary. SPRINGS WEAK. December Quarter. C.C. - 1 - 3 4) 4 Mostly due to insufficient clearance W.P. - - - - -) being allowed, but stronger springs are now being fitted and complaints Previous " C.C. - 2 1 3 6) 6 should die out except when body W.P. - - - - -) weights are excessive. Six Months. - 3 1 6 10 10 | ||