'69 Camaro Charging system questions - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 (permalink) Old Apr 13th, 10, 03:29 PM Thread Starter
Senior Tech
Doug
 
Join Date: Jun 2007
Location: Franklin, Tennessee
Posts: 929
'69 Camaro Charging system questions

Vehicle: 1969 Camaro 350 4-speed
Hey gang. Well just replaced my six year old battery (car sits more than driven) Was having problems after the car would be driven it would not restart. Battery shop said the battery was dead and after charging could not handle a load. Put in a new AC delco battery toady with over 750 cold cranking amps. Also alternator is a new AC delco

Anyhow when I put a volt meter on it with the car running it shows like 13.5 - 13.9 volts. (Battery before start up was like 13.3 volts) With the voltage regulator cover off I can see the device working away tapping. So when I adjust the volt meter to 14.4 to 15 volts the alternator starts to whine and the engine runs rougher. Also no movement out of the voltage regulator.

And to add to this I think my factory reproduction volt gauge is dead. When my meter shows 13.5-13.9 volts the gauges is showing negative past 0 to the left. (It has always been like this since buying the car.)

When my volt meter shows 14.4 to 15 volts the gauge sits at 0 and jumps all around. Any info would be great thanks.

I feel like i can't drive this car very far from my house in fear of getting stranded with a dead battery.
Mr. Super Sport is offline  
Sponsored Links
Advertisement
 
post #2 of 18 (permalink) Old Apr 13th, 10, 05:18 PM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,663
Garage
Re: '69 Camaro Charging system questions

Voltage regulator is adjusted correctly after 15 minutes of run time at 1500 rpm, no accessories on and when ambient temperature at VR is 125°F, voltage should be within 13.5-14.3 volts, nominally 13.9 volts at battery.

If adjustment is needed, note voltage reading from 13.9 volts, pull VR cap straight off -don't touch anything - watch voltage drop and stabilize. Adjust VR for the difference to bring up to 13.9 with cap on, replace cap and let temp stabilize. Note reading again.

Example: Battery reads 14.5 volts - need to reduce to 13.8-14.0 - 0.5 volt adjustment for ambient temp of 125°F, remove VR cap, voltage drops/increases, depending upon temp, say to 13.5 volts. Adjust/increase 0.5 volts, replace cap to let VR heat up, check battery voltage - should be close to 13.8-14.0 volts.

For the gauge is it an ammeter? Zero at 12 o:clock? Ammeter - should read to the left of center when engine is off, battery supplying current demanded. If meter reads to the right, swap gauge leads on the back of gauge; now gauge should read to the left indicating a battery discharge with engine off. Once engine starts to run, meter should read to the right of center, battery being charged.

Normal operation at night with headlamps on with other accessories on - more current load - engine idling, gauge may show discharge, reads to the left of center, until engine rpm goes up, then battery gets recharged. Repeats again at next stop light. You might consider replacing the mech VR with a Wells p/n VR715, electronic VR to make alt work alittle harder at idle and less current draw from battery at idle, if equipped with a 37A alternator. Battery takes longer to recharge than it does discharging.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.
Everett#2390 is offline  
post #3 of 18 (permalink) Old Apr 13th, 10, 06:15 PM
Senior Tech
Steps
 
Join Date: Dec 2005
Location: New Zealand
Posts: 13,316
Re: '69 Camaro Charging system questions

Quote:
factory reproduction volt gauge is dead.
Everett meantions this
The std gauge is a ammeter not a volt meter
There is a volt meter alternative resently released on the market
A post a couple months ago
So I would be rather confident your "factory reproduction volt gauge" is an ammeter

My Spelling is not incorrect...it is creative

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


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


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


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steptoe is offline  
 
post #4 of 18 (permalink) Old Apr 13th, 10, 07:08 PM Thread Starter
Senior Tech
Doug
 
Join Date: Jun 2007
Location: Franklin, Tennessee
Posts: 929
Re: '69 Camaro Charging system questions

Wow great info guys. Yes gauge is the factory ammeter O is at 12 o'clock. with the car off it stays to the left of 0 discharge. Stays like this with car running Unless you get the volts at 14.5 at the battery which the needle starts going crazy.

I think i will try the VR 175. Should the VR be bolted direct to rad support or keep the rubber bushings and ground strap?

Thanks guys
Mr. Super Sport is offline  
post #5 of 18 (permalink) Old Apr 14th, 10, 03:00 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,663
Garage
Re: '69 Camaro Charging system questions

Quote:
Originally Posted by Mr. Super Sport View Post
Wow great info guys. Yes gauge is the factory ammeter O is at 12 o'clock. with the car off it stays to the left of 0 discharge. Stays like this with car running Unless you get the volts at 14.5 at the battery which the needle starts going crazy.
You have any electronic device? Example would be an aftermarket radio with clock and memory always drawing power. Or, with power disconnected from the gauge and needle is deflecting off center, it could mean the gauge needs resetting, as in the needle being repositioned on its shaft, bend the needle over, or maybe the internal adjustment needs tweaking.

A quick and dirty test for static current draw, meaning as car sits with key off, is to remove a battery cable and insert a light bulb or a test light between the cable and battery post and see the glow - means current is being drawn, the dimmer the glow, the less current drawn. Ever view the car at night/darkness to check for lights on?

Quote:
I think i will try the VR 175. Should the VR be bolted direct to rad support or keep the rubber bushings and ground strap? Thanks guys
You're welcome. It's VR715, can be purchased at most any parts store, especially NAPA.

You can bolt it directly to the rad supp, use star washers between the case and rad supp, or bushings with the ground strap. The VR chassis must be grounded, or same reference point to the alt case, an ohmmeter will confirm this showing less than 1 ohm.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.
Everett#2390 is offline  
post #6 of 18 (permalink) Old Apr 14th, 10, 05:20 AM Thread Starter
Senior Tech
Doug
 
Join Date: Jun 2007
Location: Franklin, Tennessee
Posts: 929
Re: '69 Camaro Charging system questions

Thanks Everett#2390. I think the gauge needs resetting. It sits to the left of zero (discharge) with no battery connections. I will go over to NAPA today and try a new VR715. Thanks for the help.
Mr. Super Sport is offline  
post #7 of 18 (permalink) Old Apr 14th, 10, 08:50 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,663
Garage
Re: '69 Camaro Charging system questions

Let us know how it works.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.
Everett#2390 is offline  
post #8 of 18 (permalink) Old Apr 14th, 10, 02:13 PM
Senior Tech
Steps
 
Join Date: Dec 2005
Location: New Zealand
Posts: 13,316
Re: '69 Camaro Charging system questions

From memory there is a tiny zero scew in the rear.???

My Spelling is not incorrect...it is creative

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


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


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


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steptoe is offline  
post #9 of 18 (permalink) Old Apr 14th, 10, 05:41 PM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,663
Garage
Re: '69 Camaro Charging system questions

Yes there is, dependent upon manf, but you still have to remove the cover to get to it.
Cheaper units had no screw, just bend the stationary tab to lengthen the spring - increase voltage.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.
Everett#2390 is offline  
post #10 of 18 (permalink) Old Apr 14th, 10, 10:38 PM
Senior Tech
Steps
 
Join Date: Dec 2005
Location: New Zealand
Posts: 13,316
Re: '69 Camaro Charging system questions

Quote:
Yes there is,
Cool Im not as old and senile and have alzimers as my kids recon lol...well old yes lol
last time I had my gauges out would have been around '84 sorting out getting the temp to read accurate
I rem thinking hmmm...thats handy
What where we talking about?

My Spelling is not incorrect...it is creative

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


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


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


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steptoe is offline  
post #11 of 18 (permalink) Old Apr 15th, 10, 03:55 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,663
Garage
Re: '69 Camaro Charging system questions

I misunderstood, Steps, I thought you were talking about the reg adjusting screw, and here you were talking about the gauge adjustment screw............some do, some don't.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.
Everett#2390 is offline  
post #12 of 18 (permalink) Old Apr 15th, 10, 12:56 PM
Senior Tech
Steps
 
Join Date: Dec 2005
Location: New Zealand
Posts: 13,316
Re: '69 Camaro Charging system questions

I never messed with my regulator....when my orginal alternator wore up yrs ago, I replaced with a self regulating.
I did mess around with my GM Holden 69 Monaro HT which is the same unit 30 yrs ago...but the alzimers kicked in lol....cant rem...

Damn got to getting old, on the self above me is the AC Delco electrical service manual..
Says basically the same as Everett says above.

My Spelling is not incorrect...it is creative

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


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


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


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Steptoe is offline  
post #13 of 18 (permalink) Old Apr 17th, 10, 03:58 PM Thread Starter
Senior Tech
Doug
 
Join Date: Jun 2007
Location: Franklin, Tennessee
Posts: 929
Re: '69 Camaro Charging system questions

Hey guys thanks for the info. I took the needle off and zeroed the gauge. With the car at idle it goes one tick to the left of 0 to discharge when you rev the engine it goes back to zero. With a multi meter at the battery it is making 14 volts. The battery is brand new AC delco.
Mr. Super Sport is offline  
post #14 of 18 (permalink) Old Apr 17th, 10, 04:58 PM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,663
Garage
Re: '69 Camaro Charging system questions

Cool, You're welcome.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.
Everett#2390 is offline  
post #15 of 18 (permalink) Old Apr 17th, 10, 06:04 PM Thread Starter
Senior Tech
Doug
 
Join Date: Jun 2007
Location: Franklin, Tennessee
Posts: 929
Re: '69 Camaro Charging system questions

Does that sound correct for the gauge or should it always be in the + charge mode to the right of 0 on the gauge? Thanks so much
Mr. Super Sport is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome