Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Vehicle faults including clutch jag, pedal pressure, stiff gear lever, and vibrations.

Identifier  ExFiles\Box 69\2\  scan0298
Date  18th December 1924
  
R.R. 493A (50H) (D.B. 175 25-9-24) J.H.D.
-4-
EXPERIMENTAL REPORT.
Exptl. No. REF Hs{Lord Ernest Hives - Chair}1/LG18.12.24.

With reference to CWB2/LH{Mr Haworth}16.12.24.

Clutch Jaggar.
We hope that this fault will be overcome. It is receiving attention.

Pressure on clutch pedal.
W.W. have supplied designs which will reduce the pressure on the clutch pedal. This means, however, new pedals and other modifications. You will remember at the Conference at which CJ. BJ. PN.{Mr Northey} CWB. and HS.{Lord Ernest Hives - Chair} were present (after the car had been tried at Gerrards Cross) - it was decided then that the pedals need not be altered for 'V' series, therefore, if it is now thought the clutch pedal pressure is too high, instructions should be given for the new pedals to be adopted. It is R's wish that the new pedals should be fitted, but this will mean delay.

Gear change lever very stiff.
This type of lever will not be fitted to 'V' series - it will come on on 'W' series. Improvements are in hand to make the change speed lever float easier when used on 'W' series.

Vibrations.
We think that we must assume that 93-NK car represents an average car - that means - that on the production cars, some will be a little better and some will be a little worse than 93-NK. This impression may be modified as we gain more experience with other cars.

Brake mechanism.
'V' series is identical to 'U' series. contd:-

[Handwritten Notes]
Over 'EXPERIMENTAL REPORT.': see copy ref 13
Left margin, next to 'Clutch Jaggar.': It is a distinct fault & a nuisance.
Left margin, next to 'Pressure on clutch pedal.': OK
Left margin, next to 'Gear change lever very stiff.': This is very necessary. It was awkward when I tried it with CJ at Derby & is no better now.
Left margin, next to 'Vibrations.': OK
Left margin, next to 'Brake mechanism.': OK
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙