’74 Duster exploded battery

Hello everyone,


I have a some electrical problems with my Duster. For 2 weeks ago, my battery exploded! It turns out that the voltage regulator was defect, so i replaced it for a new one. And of course a new battery. Still, the problem is not solved. Therefore i also mount a new alternator. It makes a little difference.


Now, when i drive about 30 (or slower) mls an hour it runs perfect. When i drive faster, the alternater goes whistling because it rotates to fast. At that point, when i measure the battery, it says 17,8 volts or higher instead of the 14,4 volts.


Is there anyone familiar with this problem?


New parts (among other parts): alternator, voltage regulator, battery. Same problem.
Car: '74 Duster 340 stroker (Original 318)


Sorry for my english but i'm from Europe!


Greetz and thanks, Michael.
Author: Dutch Duster