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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).
Fault analysis report for the March quarter, detailing issues with clutches, tappets, engines, and misfires, with counts and case notes.

Identifier  ExFiles\Box 146\2\  scan0183
Date  1st January 1940
  
-4-

13. a) CLUTCH SLIPS
b) CLUTCH BURNT OUT.

March quarter C.C. I I
O.P.
Previous quarter C.C. I I
O.P.

Six months 2 2

14. TAPPETS NOISY OR VALVE MECHANISM NOISY.

March quarter C.C. 2 3 5
O.P.
Previous quarter C.C. I 2 3
O.P.

Six months 3 2 3 8

15. IRREGULAR RUNNING OF ENGINE

March quarter C.C.
O.P.
Previous quarter C.C. I I
O.P.

Six months I I

16. SELF ADJUSTING MECHANISM CAUSES MISFIRE.

March quarter C.C.
O.P.
Previous quarter C.C. 2 2
O.P. I I

Six months 3 3

(B) GCJ.19 - 13681 Kms. - Completely burnt out. Fitted new liners & a friction plate on a 50 % basis. We think the cause of the trouble was due to the driver keeping his foot on the clutch pedal. This car is only used for town work.

GCF.19 - III45 Kms. - Reset tappets
GNC.71 - 37213 Kms. - Repetition complaint.stoned the rockers & reset tappets.
PH.III - 3.AZ.140 - 6075 Kms. Dismantled all plungers & casings & increased the diametrical clearance of plungers to .0015".
3.AZ.IIO - 8450 Kms. - Increased the clearance of the plungers as above.
3.AZ.20 - 7921 Kms. - Tappets noisy reset tappets.
Please refer to remarks on last quarter lists.
  
  


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