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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 modifications and checks for the 35-EX vehicle's 10,000 miles test.

Identifier  ExFiles\Box 92\6\  scan0102
Date  21th January 1937
  
300b

To HPS.{Horace Percy Smith - Experimental Factory Mgr}

Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux}8/JH.21.1.37.

35-EX.
For 10,000 Miles Test.

Will you please carry out the following work and modifications :-

Engine.
In checking the tappets we have noted a variation of .0035" to .004" in the clearance according to the position of the cam on B1 exhaust and B2 inlet. Irregular base circles are suspected.

Will you please check up on this.

Remove S/SLV exhaust valves on "A" bank and test for cracks.

Fit starter motor with cork friction clutch as instructed by /Wst.

Clutch.
Dismantle. Inspect spring cups for tightness in cover. Check cushioning and set up of driven plate. Inspect friction fabrics. Check finger settings.

Gearbox.
Modify to Ex.25331 off 4 HS.{Lord Ernest Hives - Chair}

Change exhaust system as instructed by Wym.{G. Harold Whyman - Experimental Manager}

FRONT ROLL ROD.
Remove front roll rod.

Reduce diameter from .687" to .575". replace and connect up.

Fit special engine side guards as instructed by Std.

Check body mountings for tightness.

Complete fitting of dashboard insulation around heater.

Attend to working of sun blinds.

Rm{William Robotham - Chief Engineer}/I.M.Waller.
  
  


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