Re: super C alternator running problems

Posted by Bob M on January 13, 2005 at 07:03:13 from (151.190.254.106):

In Reply to: super C alternator running problems posted by cowboy in WA on January 12, 2005 at 18:40:14:

Bob's advice below is right on! A couple added notes:

1 - The best place to stick your voltmeter to determine whether the alternator is working is directly across the battery posts.

2 - Unlike generators, alternators are extremely susceptible to damage from open/short circuits while in operation. Never, NEVER disconnect a battery cable, remove a warning light, pull the aux wiring plug etc. with the engine running!

On yours there's a good chance you toasted the internal regulator or something, thus the problems you are now having.

Regarding the engine quitting after a couple minutes of running, when it does it again immediately pull a plug wire and crank the engine to determine if it's still getting spark. If no spark, look for a bad ballast resistor. This is a fairly common failure with them (resistor goes open circuit when after it heats up...).

However if you find you still have spark be looking for a fuel starvation problem.

Good luck!

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