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Mechman Alternators

Installed a 220a MM alternator


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I Installed the 220A alternator in my 95 3kgt and at first the belts were squealing so I tightened the belts and it stopped squealing. Now when I accelerate, the battery level goes over 16v and my speakers cut out. Just wondering if anyone has any idea why it is fluctuating so much. Thanks

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do you have the adjustable voltage on the alt?

Legal TL scores145.6 on the dash sealed up in the low 40hz area with the port out145.5 on the dash sealed up @30hz with the port inless then 1k clamped on a 3.5k!

Why would you EVER WANT flex?
huh?...flex is what can make the lows lower and more air being pushed correct?
jeff_zps9bc81ace.jpg

me_zps0fb5a5b4.jpgMy FeedbackJeep-BuildlogPT LOSER buildlog

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Your car is overcharging because you did not adjust the voltage with the provided adjustable harness.

Please read the instructions on adjusting your charging voltage and then adjust the voltage as instructed. It's very simple and must be done before operating your vehicle.

-Eric@mechman.

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Your car is overcharging because you did not adjust the voltage with the provided adjustable harness.

Please read the instructions on adjusting your charging voltage and then adjust the voltage as instructed. It's very simple and must be done before operating your vehicle.

-Eric@mechman.

Thanks Eric, I adjusted it and it is now at 14 volts when I am accelerating, but when I am idle, the voltage drops down to 11.8v and my lights will dim, etc until I accelerate again.

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Check your connections. Do you have the ground run from the alternator case directly to the battery negative? Got the 1/0 cable from the Alt positive direct to the battery positive?

Also if it's dropping to 11.8v it sounds like you have a weak battery. What is your battery resting voltage with it disconnected from the car?

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