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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).
Known issues and recommended fixes for the 25/30 HP chassis.

Identifier  ExFiles\Box 131\2\  scan0288
Date  10th October 1938 guessed
  
-6-

25/30 HP. CHASSIS.

1. Engine gear rattle.

We have no solution for this feature.
It has been dealt with in designing and developing
the Wraith and improvement has been effected.

2. Servo squeaking.

There are complaints of this similar
to Phan.III. R.A.D.13 material is standard on
this model, but the friction discs are fully
floating, we are trying the effect of fixing the
inner friction disc to the servo by rivetting, as
there is evidence that this piece is the principal
offender.

3. Brakes.

(A) Complaints of inefficiency.
Recommendations:

(1) Carry out modification to leverage as
per Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}381.

(2) See that the layout of all levers is
correct.

(B) Complaint of squeaking.
Recommendations:

Use B.Z. linings for replacement.

4. Exhaust System.

Spring supports rattle and squeak as P.III.
A rubber suspension similar to Wraith is now
being tried out on a Trials car. When proved
satisfactory it can be applied retrospectively
at small cost.
  
  


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