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1978 Rolls Royce Silver Wraith Charging system

Tiny
V8 DOCTOR
  • MEMBER
  • 1978 ROLLS ROYCE SILVER WRAITH
  • V8
  • 2WD
  • AUTOMATIC
  • 78,620 MILES
The alternator has been rebuilt and tested and is operating to specs on the test bench. It does not charge in the vehicle. Is there a diagnostic flow chart or diagram to test the transistorized voltage regulator in the trunk. It has a new battery and the wiring has been checked for continuity and resistance. Thank You
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Monday, August 17th, 2009 AT 4:43 PM

1 Reply

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
This is the first Rolls Royce car I have advised on mate. Have you tried substituting a known good voltage regulator for the original? I do not have access to diagrams for Rolls Royce cars, however it seems the regulator is suspect.
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Monday, August 17th, 2009 AT 10:19 PM

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