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Regulator for M-60

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Brent P
Visitor
Posted on Friday, November 30, 2007 - 09:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I'm looking for recommendations for a new regulator for my M-60. I just had the alternator rebuilt earlier this year and want to continue upgrading the electrical system (I think the regulator is the original).

Any suggestions?
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 542
Registered: 11-2003


Posted on Friday, November 30, 2007 - 12:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Is your regulator one of the solid state units?
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Richard Shapiro
Advanced Member
Username: mainesails

Post Number: 46
Registered: 09-2005
Posted on Friday, November 30, 2007 - 09:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Any external regulator, like the Balmar units, will work if your alternator is designed to work with an external regulator.

The unit must be adjusted to your batteries. They type of engine is not important.

These units will charge your batteries much faster and more efficiently, and are generally considered a very useful upgrade. They will also let you change to AGM or Gel Cell batteries if you wish, as the voltages are adjustable.

The instructions will talk you through the programming and the wiring, which is not complicated.

However, if the regulator is internal, then your alternator may need to be connected differently or rewired to work with an external alternator. A mechanic, especially an alternator specialist, will be able to answer the question for you simply by looking at the alternator.
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Matthew Lennarz
Member
Username: mlennarz

Post Number: 8
Registered: 06-2010


Posted on Friday, July 16, 2010 - 12:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Hello,
I have discovered that my alternator on my P60 is not charging my batteries. I have tested voltage output directly from the alternator, when the engine is not running and when the engine is running and get exactly the same 12.1 volts. Can I assume that it is due to a faulty alternator, or could it be some other problem, such as the voltage regulator? And, if it may be another problem, can you recommend diagnotic steps to identify the problem? Thanks.
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kevin stone
Member
Username: kdstone

Post Number: 25
Registered: 01-2009
Posted on Friday, July 16, 2010 - 10:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Mathew, do you have the engine manual which is available from this site? It has a section on testing the alternator.
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 881
Registered: 11-2003


Posted on Saturday, July 17, 2010 - 07:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

In some installations the field current for the alternator is supplied via the ignition on/off switch on a separete wire. Have you checked this possibility??
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Matthew Lennarz
Member
Username: mlennarz

Post Number: 9
Registered: 06-2010


Posted on Monday, July 19, 2010 - 10:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Kevin, Thanks. I found the testing procedures.

Richard, yes, it appears that the positive (red) wire from the alternator goes to the ignition switch. Even if this were the case, shouldn't I get a voltage higher than 12v directly from the the alternator positive post when engine is running?
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Richard A. Day Jr.
Senior Member
Username: richardday

Post Number: 882
Registered: 11-2003


Posted on Monday, July 19, 2010 - 10:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

When the key switch is turned on I would expect the field voltage supplied to be the same as the battery voltage as it comes from the same source.
When you say 12 volts one has to take into account the accuacy of the voltmeter. Not knowing the regulator is it external or probably internal to the alternator. If the battery isn't charging if it is internal to the alternator then I suspect the alternator regulator is defective. I have exhausted my knowlege of your problem. I just know too often the key switch lead to the alternator for reasons often traceable to shall we say less that qualified dock attendants strap the field wire to the positive battery lead and wonder why the battery goes flat when the engine is shut down. I suggest checking to see if the field wire voltage goes away when the key is turned off.

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