Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 12-11-2017, 15:03   #1
Registered User
 
Jeanneau 45.2's Avatar

Join Date: Mar 2015
Location: Currently in the Bahamas, heading to New England for summer 2018
Boat: 2000 Jeanneau, 45.2
Posts: 191
Hitachi 80A Alternator - replace voltage regulator

Had an identical spare aboard (purchased used from a CF member several years ago) ... thank goodness. Now need to fix the voltage regulating electronics in the "bad one". How difficult is this repair ... while I am very handy I've never had an alternator apart. Where does one source the voltage regulating components, do they snap in or require soldering onto a PC board? How much would a repair shop charge ... and are there even alternator repair shops in this disposable world? Thanks - Alan
Jeanneau 45.2 is offline   Reply With Quote
Old 13-11-2017, 08:37   #2
Registered User
 
NewMoon's Avatar

Join Date: Jan 2010
Location: Holladay, UT
Boat: Nordic Tug 37
Posts: 297
Images: 13
Re: Hitachi 80A Alternator - replace voltage regulator

Rather than repair the existing alternator, I'd consider modifying it to be regulated externally, and then add a Balmar MC-614 regulator, including temp sensors for both alternator and house batteries. You could keep the other one with its internal regulator as a spare. That's how I just finished setting up my charging system.

See this article and others by Maine Sail:

Automotive Alternators vs. Deep Cycle Batteries Photo Gallery by Compass Marine How To at pbase.com
__________________
Richard Cook
Dream Catcher (Nordic Tug 37)
"Cruising in a Big Way"
NewMoon is offline   Reply With Quote
Old 18-11-2017, 16:08   #3
Registered User
 
Jeanneau 45.2's Avatar

Join Date: Mar 2015
Location: Currently in the Bahamas, heading to New England for summer 2018
Boat: 2000 Jeanneau, 45.2
Posts: 191
Re: Hitachi 80A Alternator - replace voltage regulator

The used replacement alternator has worked flawlessly, so that confirms the internal voltage regulator failed on the original. I am going to have the internal voltage regulator replaced next week in Vero Beach, FL and while apart, have the shop inspect the rest of the internals. I am usually at anchor so I rely on my genset to power my 60A charger and 400 watts of solar, so external regulation's expense and complications are not necessary for me.
Jeanneau 45.2 is offline   Reply With Quote
Reply

Tags
alternator, regulator

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hitachi Alternator and Smart Regulator Instal Question Meck Electrical: Batteries, Generators & Solar 24 13-05-2014 20:17
Yanmar 44HP Hitachi alternator sensing voltage question Goudurix Electrical: Batteries, Generators & Solar 13 28-08-2013 07:22
Yanmar 80A Alternator Upgrade konakoma Electrical: Batteries, Generators & Solar 8 02-02-2012 16:44
For Sale: Yanmar 80A Alternator atmarine Classifieds Archive 2 07-03-2011 19:50
Rewire Hitachi 80A for External Regulator MARC D Electrical: Batteries, Generators & Solar 2 26-01-2011 06:30



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:41.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.