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Author Topic: Delco 50DN Alternator and MCI MC9  (Read 991 times)
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« on: June 26, 2014, 05:44:22 PM »

Does anyone know what/where the negative (ground) connection is on a Delco 50 DN on a DD 6V92T in an '81 MCI MC9? Is it grounded through the engine and frame? If so, is a ground strap advisable?

I'm installing a Sterling advanced regulator and it calls for connections to the alternator ground connection.

I've searched the web, but I have found the Field, Batt + and R1 connections on the 50DN, but no negative?

Thanks in advance.

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1980 MCI MC-5C

« Reply #1 on: June 26, 2014, 05:48:06 PM »

Grounded through the chassis - it's bolted to ground, basically.  You can use any ground point that's handy on the engine.


1980 MCI MC-5C, 8V-71T from a M-110 self propelled howitzer
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Tatamagouche, Nova Scotia
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« Reply #2 on: June 26, 2014, 06:09:43 PM »

The VR has a ground post but not the alt.

Ash Flat, AR
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