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).
Extract from a report detailing the failure of a starter motor and subsequent damage caused by a short circuit.

Identifier  ExFiles\Box 64\4\  scan0287
Date  30th May 1929
  
30.5.29.

Extract taken from Mr. Hancock's report of 2.5.29.

X.7655. STARTER MOTOR TO LEC 2647.

The starter motor failed to function intermittently after the first five days run and failed altogether after ten days run.

When dismantled the pinion bearing was found to be very much scored and torn up. The pinion teeth and flywheel teeth were damaged. A new pinion and bearing were fitted. The starter and main switch were considerably damaged during a run through a short circuit occurring while going at a high speed. The main battery wires had to be disconnected to prevent fire taking place. We have not been able to trace the cause of the short circuit.
  
  


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