Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 23-07-2009, 16:01   #1
Registered User

Join Date: Jul 2009
Posts: 1
Question Alternator Failure, Cooling Leak


I have a Yanmar 3GM30F engine with a Hitachi (assumed 55 amp, there are no numbers or marking to identify it) alternator which do not charge the batteries. No charging for weeks, had to go to home port in the middle of the vacation(could not start, 11.53 volt on the batteries)). What is the likelihood that the alternator is broken and can I replace the unit with any 55-60 amps alternator given that it fits in the brackets?


The "fresh" water cooling system have started to leak at the pump axel ( not the raw water). Is compleat replacement of pump the only option or is there a easier way to solve the leak?

Best regard POE
peroe is offline   Reply With Quote
Old 23-07-2009, 16:10   #2
Registered User

Join Date: Feb 2009
Posts: 1,751
on the water pump.. there are shops that rebuild these do google it, unless it is an expensive pump I would just buy new
motion30 is offline   Reply With Quote
Old 23-07-2009, 17:02   #3
Registered User
mesquaukee's Avatar

Join Date: Jun 2009
Location: Western Caribbean & ocassionaly inCanada
Boat: Mesqua Ukee, Buccaneer 40 (Salar 40)
Posts: 480
You can mount any alternator you want as long as it fits in the bracket. Just make sure that the pulley is not further forward or aft, ie. it lines up with the crankshaft and water pump pulleys (same plane).

You can rebuild the water pump yourself but it is a pain. Easier to get a new one and throw the old one in your spare parts bin, you never know one day it you may need it.
mesquaukee is offline   Reply With Quote

alternator, cooling

Thread Tools
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
GPS System Failure? Rhosyn Mor General Sailing Forum 16 25-05-2009 21:24
ProFurl furler failure alaskadog Deck hardware: Rigging, Sails & Hoisting 9 04-11-2008 19:45
Keel Cooler Failure Richard Kollmann Plumbing Systems and Fixtures 0 01-06-2008 05:24
rig failure? irwinsailor Dollars & Cents 3 18-02-2008 07:26
Another Stainless steel failure delmarrey Construction, Maintenance & Refit 15 27-07-2006 15:58

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 02:27.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.