Checking Alternator - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
 Not a Member? 
  #1  
Old 05-15-2014
Junior Member
 
Join Date: May 2014
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Maddogg is on a distinguished road
Checking Alternator

I have an Atomic 4 engine, and I think my alternator is on it's last legs. The amp meter only goes up to about 12.7 when the engine is on. I'm told that it should go up to 13.5-14.
I was told I should take it out and bring it to "pep-boys", or some other auto parts store where they can check it for me, and if it's NG, have them replace it with a like model.
Is there something I should do with the shore power and the battery switch before I disconnect the alternator and take it off?
I want to be very careful with these batteries. They're relatively new, and I don't want to have to replace them any time soon!
Thank you in advance,
Michael
Reply With Quote Share with Facebook
  #2  
Old 05-15-2014
erps's Avatar
the pointy end is the bow
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,140
Thanks: 2
Thanked 23 Times in 23 Posts
Rep Power: 10
erps will become famous soon enough erps will become famous soon enough
Re: Checking Alternator

Turn your battery switch off and then check the largest terminal on your alternator and/or starter to confirm there's not juice there. Or you could just disconnect the negative terminals on your batteries. The alternator has a pretty big wire on it that's hot. It wants to find a path to ground (the negative terminal of your battery). That's why there are big sparks when your wrench touches anything metal while removing that wire. Don't ask me how I know that.
__________________
Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Boating for over 25 years, some of them successfully.
Reply With Quote Share with Facebook
Reply

Tags
alternator , atomic 4 , batteries


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Just checking in colsen Introduce Yourself 2 03-24-2014 09:06 AM
Checking In amflyr Introduce Yourself 2 01-06-2013 03:17 PM
Checking in, Toronto! Martytoof Introduce Yourself 2 08-13-2012 02:26 PM
Just checking in... cal30 Cal 0 05-10-2010 11:40 PM


All times are GMT -4. The time now is 09:25 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.