Engine - Electrical
Dynamo
Rolls Royce 20/25 – A Rattling Story by T. A. V. Lamrock of Wentworth Falls, New South Wales is a discussion of diagnosing and repairing a rattle in the dynamo drive of GOS81, a 1931 20/25hp with a six light Park Ward limousine body.
Wiring Diagrams
20HP Wiring diagram