Quote:
Originally Posted by BoiseBenz
1983 300D, or a 123.133 with a 617.952
Alternator only works right when key is OFF (red light on brightly) and engine is still running.
Off voltage: 12.8
Running voltage, key on with no load, idle: 11.8
Running voltage, key on with no load, rev to 3000 for one minute: 13.2
Running voltage, key off, headlights on, idle: 13.85
Any clues which wire or splice is funky?  |
Where did you do your voltage measurements? At the battery post ?
Try redoing the tests after the car has been driven for about 10 minutes, before you shut it down.
What was the voltage doing in the 1 minute while revving after idling? Slowly building?
Do you have afterglow?
How were you able to have the key off & idle?
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1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles 
1987 250td 160k miles English import 
2001 jeep turbo diesel 130k miles 
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
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