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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).
Summary of issues regarding brake wear, drip plugs, and crankshaft bearings, along with proposed improvements.

Identifier  ExFiles\Box 179\2\  img036
Date  1st December 1931
  
Ha/BM.1/ADD.12.31 contd.

-4-

SUMMARY

The worst fea ture on the car was the brake wear.
We hope to cure this trouble by getting heat away more readily
with the ribbed brake drums which have already been designed
and are running on a number of experimental cars. So far
these have given promising results.

The number of drip plugs which have failed is
rather disconcerting and we are trying to get an improvement
in design from the Luvax people.

The balanced crankshaft should overcome our trouble
with the centre bearing but we think the bearing cap design
might be considered. We think the condition of the cylinders
is an excellent recommendation for extra oil.

Ha/Tm.
  
  


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