1978 Rolls Royce Silver Wraith Charging system

1978 ROLLS ROYCE SILVER WRAITH
78,620 MILES • V8 • 2WD • AUTOMATIC
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V8 DOCTOR
  • MEMBER
  • 1 POST
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
Aug 17, 2009 at 4:43 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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DOCHAGERTY
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 9,603 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.
Aug 17, 2009 at 10:19 PM
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