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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).
Unequal cylinder liner distortion on the Phantom III engine and the proposed pattern alteration to correct it.

Identifier  ExFiles\Box 93\4\  scan0027
Date  9th December 1935
  
BY.{R.W. Bailey - Chief Engineer}
c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
c. Mx.{John H Maddocks - Chief Proving Officer}

X319

E/JNR.{Charles L. Jenner}1/HP.9.12.35.

Phantom 3 Cylinder Liner Distortion.

Mx.{John H Maddocks - Chief Proving Officer} has demonstrated that there is unequal cylinder liner distortion on No.1. cylinder "A" unit.

The ribbing in the crankcase for this particular cylinder is different from the others, the snout of the cylinder liner being attached in three places instead of four. To correct this will you please forthwith instruct the pattern to be altered, treating the front pair of cylinders exactly like the rear pair, the depth of the small webs being level with the crankcase snout.

[Handwritten text with diagram]
Wheelcase
E/JNR.{Charles L. Jenner}
WEBS ADDED
C
[Diagram cylinder labels: 3, 2, A1 and 3, 2, B1]
  
  


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