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).
Phantom III gearbox synchromesh cone issue and a query about bearing clearance.

Identifier  ExFiles\Box 131\4\  scan0310
Date  22th June 1937
  
To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux}

1113

Cricklewood June 22nd. 1937

PHANTOM III. GEARBOX.

Cricklewood called my attention to the poor bedding of the top synchromesh cone of a Phantom III. gearbox. The owner had complained of crashing. I advised and showed them how to obtain a good bedding. The bush for the bearing of the third motion shaft was very slack and allowed the top cone to rock over which does not help the synchromesh cone. I did not advise fitting a new bush knowing the danger of seizing. I would be pleased to know what clearance is given on production for this bearing.

Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux},
  
  


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