Why do I keep blowing Alternators?

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86ruguy
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Joined: Sat Apr 29, 2006 4:44 pm
Location: tacoma, wa

Why do I keep blowing Alternators?

Post by 86ruguy »

Well for the 3rd time in 3 months, I have lost the alternator on a 3rd Legacy.

All three of them have been on 92 N/A Legacys.

What's Up with That?
92wagon (wife's)
92 5mtwagon white(recently re-aquired)
92 sedan (sold)
91 ss no mods (sold)
88 GL Wagon (broken)
evolutionmovement
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Location: Beverly, MA

Post by evolutionmovement »

I'd guess you have some kind of electrical issue causing failure. My original one lasted 250k and still worked intermittently (diode pack was dying). Something in the system must be causing it to overwork.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
86ruguy
Second Gear
Posts: 421
Joined: Sat Apr 29, 2006 4:44 pm
Location: tacoma, wa

Post by 86ruguy »

I don't have anything that is on on a regular basis for them to be overworked
92wagon (wife's)
92 5mtwagon white(recently re-aquired)
92 sedan (sold)
91 ss no mods (sold)
88 GL Wagon (broken)
evolutionmovement
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Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Post by evolutionmovement »

No, a bad wiring issue that's causing the alternator to overwork. A weak battery can strain an alternator as well.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
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