Voltage Readings on New Gauge - Overcharging? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-11-2003, 08:18 AM
horvath's Avatar
Acoustic Rock ... for real.
 

Last journal entry: About Fusible Links
Last photo:
Join Date: Feb 2003
Location: Central New Jersey
Age: 63
Posts: 1,982
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post Voltage Readings on New Gauge - Overcharging?

My new Dolphin gauges are in ... and I'm curious about the Voltage meter :

When the ignition is on and the engine off, initially, the meter reads around 11 volts ... then after starting the engine, the meter reads up around 16 volts -- is that too high? Or is it cool?

Thanks.

Alan Horvath
<a href="http://AlanHorvath.com/54chevy/" target="_blank">54 Chevy Pickup</a>

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-11-2003, 08:41 AM
crazy larry's Avatar
Member
 

Last journal entry: better comparison before and after shots
Last photo:
Join Date: Oct 2002
Location: East Texas
Age: 43
Posts: 2,298
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

sounds cool man. alt. charging. far out. keep us posted on the ezwire. if it works, i'd rather spend 179 too.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-11-2003, 08:51 AM
horvath's Avatar
Acoustic Rock ... for real.
 

Last journal entry: About Fusible Links
Last photo:
Join Date: Feb 2003
Location: Central New Jersey
Age: 63
Posts: 1,982
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post

Thanks, Larry

Thje EZ-Wire kit works great! Go for it, bro'.

Alan
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-11-2003, 09:18 AM
joes50's Avatar
Member
 
Join Date: Mar 2003
Location: Yuba City California
Posts: 32
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Something sounds wrong.......11 volts wouldn't even crank over the engine. Check the voltage on the battery itself and then look at the reading on the gauge to see how they compare. The 16 volt charging is way to high and will boil out the battery. You should be around 13 volts.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-11-2003, 09:35 AM
dmorris1200's Avatar
doesn't play well with others
 
Last photo:
Join Date: Feb 2002
Location: Maine
Age: 49
Posts: 1,834
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Something is definately wrong with those numbers. Whether or not it's wiring problems or gauge error can't say. Get a digital multimeter and check battery voltage at the battery posts. Approx. 12.6 volts is fully charged and like the minute hands of a clock, 12.45v is 3/4 charged (45 minutes=3/4 of an hour). 12.30v is half charged (30 minutes=half an hour). Sounds like you are going to need to do a little investigating. Make sure all connections are clean and also check charging voltage at battery with multimeter and compare to gauge readings.


__________________
BUILT FORD TOUGH
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-11-2003, 09:38 AM
dmorris1200's Avatar
doesn't play well with others
 
Last photo:
Join Date: Feb 2002
Location: Maine
Age: 49
Posts: 1,834
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Also keep in mind that batteries carry a surface charge after charging. It's good to run some lights for a couple before you check it's voltage.




[ May 11, 2003: Message edited by: dmorris1200 ]</p>
__________________
BUILT FORD TOUGH
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 05-11-2003, 11:48 AM
horvath's Avatar
Acoustic Rock ... for real.
 

Last journal entry: About Fusible Links
Last photo:
Join Date: Feb 2003
Location: Central New Jersey
Age: 63
Posts: 1,982
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post

Thanks, guys ... I thought those numbers seemed off!

I just went out ... turned on the headlights for a minute ... checked the battery with an analog tester ... got 12 Volts at the battery and the same at the alternator -- my dash gauge was reading like 11.5.

Then I started the engine ... battery read about 14.5 ... alternator read about 14.5 ... dash gauge looked like 15.75

Obviously the dash gauge is off ... but how are the numbers from the meter? 12 Volts with the engine off and 14.5 Volts with the engine running -- is that cool?

Thanks again.

Alan
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 05-18-2003, 12:06 PM
blockhead's Avatar
Member
 
Join Date: May 2002
Location: Bribie Island
Posts: 44
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

That battery reading is still too low. 12V is just about flat. Use a digital meter to get a more accurate reading.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 05-18-2003, 09:48 PM
horvath's Avatar
Acoustic Rock ... for real.
 

Last journal entry: About Fusible Links
Last photo:
Join Date: Feb 2003
Location: Central New Jersey
Age: 63
Posts: 1,982
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post

Thanks, blockhead.

I bought a digital meter and got 12.5, engine off ... 14.5 engine running/headlights on.

I think my alternator and/or regulator is going though ... I'm going to install a new one tomorrow and see what readings I get.

Alan Horvath
<a href="http://AlanHorvath.com/54chevy/" target="_blank">54 Chevy Pickup</a>
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 05-19-2003, 03:49 PM
horvath's Avatar
Acoustic Rock ... for real.
 

Last journal entry: About Fusible Links
Last photo:
Join Date: Feb 2003
Location: Central New Jersey
Age: 63
Posts: 1,982
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post

Bad alternator.

I took the truck to an alternator guy today ... it was cranking 15 volts! He sold me a rebuilt alternator, I took it home and installed it and my voltage readings are perfecto! Even my new dash gauge reads correctly.

My headlights had a slight flicker in them, too ... that's gone as well.

Sigh ... what a relief!

Alan Horvath
<a href="http://AlanHorvath.com/54chevy/" target="_blank">54 Chevy Pickup</a>
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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 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 On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 07:38 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.