Rolls-Royce Archives
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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).
Chart tracking engine complaints for the 4¼ Bentley model during 1939.

Identifier  ExFiles\Box 131\3\  scan0056
Date  1st January 1939
  
CHART OF COMPLAINTS
4¼ BENTLEY
1939 JAN FEB MARCH APRIL MAY JUNE

Vertical Text (Left): SG{Arthur F. Sidgreaves - MD}, HS{Lord Ernest Hives - Chair}, C, By, RM{William Robotham - Chief Engineer}, Mx{John H Maddocks - Chief Proving Officer}, RHC{R. H. Coverley - Production Engineer}, H, SR, LA{L. A. Archer}, K/Kc, GWH{George W. Hancock - Head Chateauroux}/K

Category 1:
ENGINE BEARINGS
MOD. B
TAKING SLACK
OUT OF BEARINGS
ONLY
Complaint Label: COMPLAINT OF SLIGHT THUMP
Data: [FEB] W307

Category 2:
MOD. C.
DRILLING OF
CRANKSHAFT
FOR LUBRICATION
NEW BEARINGS AC.7
FITTED. N°7
WHITE METAL.
AC9 FITTED TO
CONRODS.
Complaint Label: COMPLAINT OF THUMP BY OWNERS AND TESTERS CONFIRMED BY OIL FLOW TEST LOW OIL PRESSURE.
Data:
[JAN] Bar: 13, K, P 160, P 158, P 156, W 295
[FEB] Bar: MODC:, 15, K, K 154, P 175, W 313, W 309, W 308, W 305
[MAR] Bar: K, P181, P194, W323, W327

Category 3:
ENGINE ROUGHNESS
AND TIMING GEAR
RATTLE
1750-3000 R.P.M.
DEALT WITH BY
ALTERATION TO
CRANKSHAFT DAMPER
LOAD
Data:
[FEB] Bar: 8, 1, W 315
[MAR] Bar: 10, 3, 3, P198, AVERAGE MILEAGE 31,000, AVERAGE MILEAGE 5,000
[APR] Bar: 9, W 322, AVERAGE MILEAGE 28247

Category 4:
DETONATIONS

Note (below category 4): NONE UNDER 15,000

Bottom Right Corner: GWH{George W. Hancock - Head Chateauroux} I
  
  


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