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).
Performance and issues report on a 24-EX Left-hand U.S.A. model.

Identifier  ExFiles\Box 11\3\  03-page267
Date  21th August 1930
  
Sg.{Arthur F. Sidgreaves - MD}..from PN.{Mr Northey}
Copy to C.

24-EX. Left-hand U.S.A.

The balance of mileage of about 1,000 after the work which this car had been doing in France was run by Sales Officials before the car was returned to Derby, including one test run in City streets.

As a result of [strikethrough]this[/strikethrough] the slow running there does not appear to be any sign of over-oiling at all. The car behaved generally as a quite good touring car, having a rather higher rate of acceleration than usual up to 65 m.p.h., but a definite falling off at higher speeds compared to the "Phantom II".

I always had the impression when driving this car that the axle was geared higher by one tooth. On one occasion only was I able to get to 80 m.p.h., and that was under favourable conditions with the wind, the maximum speed being less than that of the "Phantom II", under average conditions.

The engine unit was pleasant and reasonably free from roughness when picking up.

The clutch, during the time the car was in my hands was unpleasant. It tended to jagger and also at times endeavoured to remain in the close position, freeing itself later on. This may have been due to the clutch-ring which has already given trouble previously, and which has been modified. This point obviously requires further attention.

I noticed a tendency as did also JLE.{J. Lee Evans - Chassis Test Manager} for the steering to wander a bit at high speeds. One felt this was less probably a matter of design than question of clearance and lubrication which may have obtained after the miles run.

The oil-pump could be heard most of the time, [Handwritten above: a small amount] and a lot of noise which varied considerably.

The braking generally appeared to be very much as with the "Phantom II", except that on this car the noise and squeaks made by the brakes were altogether greater than I have heard previously on any car all the time, when in operation.

Cooling. Under no conditions did the temperature rise above 75°, side bonnet shutters always open. This included long stretches of fast running with the wind also. It was not possible to adjust the Thermostat control so that the shutters closed a bit earlier, which would have been interesting.
  
  


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