Rolls-Royce Archives
         « Prev  Box Series  Next »        

Issues and modifications to the exhaust system, brake equaliser shafts, and road springs.


Identifier  ExFiles\Box 11\1\  01-page76
Date  23th April 1934 guessed
  
-7-

by the brakes does not reach the inner parts where the drain hole is situated, therefore the grease remains in a solid mass. It has not been necessary to add any oil to the axle.

EXHAUST SYSTEM.

The exhaust pipes and silencers are not supported sufficiently by the springs. The bottom springs are too weak and allow the cups holding the springs to chatter. The top springs do not require altering as all the load is downwards. The snout anchorage clip which broke during the first 5000 miles was replaced by a similar clip but made twice its breadth where the holes are drilled for the bolt to pass through. This has been satisfactory. There has been no other trouble with the exhaust system. One feature which requires improving is the heat guard over the front portion of the silencer. This should be made with more width, or to encircle more of the silencer for the following reasons:-

FOOT & HAND BRAKE EQUALISER SHAFTS. LOP.G.81051.

The lubrication to these shafts is on the excessive side and oil drops on to the front end of the silencer. It is difficult to get the metering of the lubrication to these shafts just right. it is either too much or too little. To overcome the smell of oil that drops on to the silencer, the shield should be made larger as previously stated.

FRONT & REAR ROAD SPRINGS. LOP.F.85195. LOP.E.85237.

Complete the above LOP's incorporating Firth's Low Rated Springs as details.

Front.
Type. N.S. 1200 lbs. O.S. 1200 lbs.
Loaded lbs. 1214 lbs. 1216 lbs.
Loaded Camber flat. flat.

Rear.
Type. N.S. 1400 lbs. O.S. 1400 lbs.
Loaded lbs. 1426 lbs. 1427 lbs.
Loaded Camber flat. flat.

There has been no failure of the road springs, attachment to the axles has remained firm.
  
  
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).


Copyright Sustain 2026, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙