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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 customer complaints regarding radiator leaks and springing issues, with proposed remedies.

Identifier  ExFiles\Box 130\1\  scan0089
Date  30th September 1933 guessed
  
- 9 -
20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS.

RADIATOR LEAKS.
September Quarter. C.C. - 10 - 11 21)
W.P. - 1 - - 1) 22
Previous Quarter. C.C. - 11 - 6 17)
W.P. - 1 - 5 6) 23
Six Months. - 23 - 22 45 45

Bronze water connection now being used to replace aluminium connection which corrodes on Ph.II. radiators. Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}219.

TOTAL SPRINGING COMPLAINTS.
September Quarter. C.C. - 52 2 40 94)
W.P. - - - - -) 94
Previous Quarter. C.C. 2 54 1 31 88)
W.P. - - - - -) 88
Six Months. 2 106 3 71 182 182

SPRINGS NOT COMFORTABLE.
September Quarter. C.C. - 50 2 40 92)
W.P. - - - - -) 92
Previous Quarter. C.C. 1 49 - 27 77)
W.P. - - - - -) 77
Six Months. 1 99 2 67 169 169

Ph.I complaints can be definitely cured by grooving springs and modifying shock dampers.
20/25 HP. We can cure many complaints by modifying the shock dampers. Grooved springs are an advantage. In exceptional cases low rated springs 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 sometimes necessary.

SPRINGS WEAK.
September Quarter. C.C. - 2 - - 2)
W.P. - - - - -) 2
Previous Quarter. C.C. 1 5 1 4 11)
W.P. - - - - -) 11
Six Months. 1 7 1 4 13 13

Mostly due to insufficient clearance being allowed but stronger springs are now being fitted and complaints should die out except when body weights are excessive.
  
  


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