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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).
List of action points for testing and modifications on various Bentley models.

Identifier  ExFiles\Box 174\3\  img074
Date  25th February 1936
  
-2-

He/Ro.{C. C. Rose - Export Manager}22/K.25.2.36.

BENTLEY.

(1) G.W.H. will see that the Hardy Spicer propeller shaft, and the servo with the Hardy friction damper on the swinging arm, are fitted to B-56-BN{W.O. Bentley / Mr Barrington} before it goes on 15,000 miles test. Whyman will also give him a specification for an alternative exhaust system which is provided for this car.

(2) G.W.H. will get careful performance figures for B-56-BN{W.O. Bentley / Mr Barrington} with the fully split skirt pistons in, and then change over to Aerolites and repeat the tests.

(3) Dodd will obtain a Delco ignition governor which gives the final ignition advance curve required to maintain the performance on B-23-AE, and test it out.

(4) Dodd will also check the effect of water temperature on detonation on B-23-AE.

(5) G.W.H. will get the cut away starter motor bush fitted to B-56-BN{W.O. Bentley / Mr Barrington} before it starts 15,000 miles.

(6) Whyman will carry out his exhaust tests on B-23-AE and 6-B-IV, which are now both available for this job.

(7) Dodd will fit the 6" wheels with the large section tyres to 6-B-IV.

(8) Martindale will confirm on J-B-IV that reducing the arc of embrace of the front shoes does eliminate the tendency to jagger, and having done this, we will instruct some shoes for the light alloy drums.
  
  


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