The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-02-2002, 08:38 PM   #1
shortbed70
Registered User
 
shortbed70's Avatar
 
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
Post charging problem

I have a problem with batteries going dead. I just put a new alt. on but I think the wiring under the hood is screwed up. I need to know how the charging systems wires are run,colors and directions. I've looked in the chiltons but they just tell colors. I need routing also. If I jump start the truck it runs fine It's just not charging the battery. The truck is equipt with 350 2barrel.

[This message has been edited by shortbed70 (edited April 02, 2002).]
__________________
Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
shortbed70 is offline   Reply With Quote
Old 04-02-2002, 08:47 PM   #2
red71cheyenne
Back in the sticks
 
red71cheyenne's Avatar
 
Join Date: Jan 2001
Location: Fordland, MO
Posts: 3,188
Post

Do you have access to a voltmeter? You should see around 13 or 14 volts on the battery terminals with it running. If not, your alternator is not working or like you said the wires are bad. Check the alternator ouput terminal(red) to ground with it running. Should be the same 13 or 14 volts. If its there and not at the battery, you have wiring probs.

------------------
1971 Cheyenne C-10 w/700R4 and Tuned Port Injection
1969 K5 Blazer New project
1995 K1500 Sub(Mommas car)
1989 VW Golf(Beater)
Will be the daughters car if she will pay her insurance! Ha!


__________________
1971 Cheyenne C-10 w/700R4 and Tuned Port Injection
1969 K5 Blazer w/Tuned Port
2010 2SS/RS Flaming Orange Camaro
2011 K1500 Suburban
2014 K1500 Pickup
2008 Nissan Altima? The wifes' hoopty
red71cheyenne is offline   Reply With Quote
Old 04-02-2002, 08:52 PM   #3
Andy4639
Old member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
Lightbulb

If you have a volt meter, put it on dc, then red to positive, black to negative, crank truck and check what the reading is. It should be at least 13.5 or 14 volts. If it is anything less it ant charging. It's the voltage regulator and not the alternator in less you have swap it for a later one. If you have the right voltage it could be something drawing it down. How long does it take to kill the battery, couple of hrs.,days. Hope this helps.

------------------
Andy
71's Are for ever!!! or 67,68,69,70,72 http://geocities.com/chevy71tpi/main.html

__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 04-02-2002, 09:02 PM   #4
primer67
Account Suspended
 
primer67's Avatar
 
Join Date: Oct 2001
Location: phoenix, AZ.
Posts: 181
Post

I feel ya brother. I have the same problem as you do. I am going to do this to stop it.
1. you have to consider what you want out of your truck, do you want to make a rod or a resto?
If you want to make a rod, you only need a few wires. headlights are a must!
there are only about ten dif. wires that you need. The battery ground, the pos. wire to the starter, the starter to coil/hei the power to wiring harness, and a few accessory wires to run the inside compartment/taillights/tach etc.
the PO probable had a connection for every accessory possible, and probably burned a few together in the process of owning it.
I checked under my hood today, and I found a wire, for the dual electric cooling fans that I run and found a bare wire touching the frame, grounding it out, draining the battery. so get in there, and clear out all of the garbage, wrap plastic heatshielding around the wires, screw the wires to the inner fenderwells with wire brackets. about 4 hours aught to do it.
good luck! -- also if you need diagrams, try factory shop manuals. they are a little less vague.
primer67 is offline   Reply With Quote
Old 04-02-2002, 09:03 PM   #5
primer67
Account Suspended
 
primer67's Avatar
 
Join Date: Oct 2001
Location: phoenix, AZ.
Posts: 181
Post

hey andy, where is the stock location of the voltage regulator on a '67 c-10?
primer67 is offline   Reply With Quote
Old 04-02-2002, 09:06 PM   #6
shortbed70
Registered User
 
shortbed70's Avatar
 
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
Post

I would like to know where the regulator is on a 70
__________________
Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
shortbed70 is offline   Reply With Quote
Old 04-02-2002, 09:20 PM   #7
wild4wheels
Registered User
 
wild4wheels's Avatar
 
Join Date: Jan 2001
Location: Queen Creek, Arizona
Posts: 1,626
Post

shortbed, I had the same problem on my Panel, check for proper ground. I think mine runs from the battery to the alt. bracket, and then from the alt bracket to the frame.


Good Luck-I hate working on electricity

Wild

------------------
'02 Impreza 2.5ts
'94 Altima - For Sale-$2500
67 Panel
'88 Isuzu P/U - For Sale-needs motor work-$400
'79 Bonneville(Greenie) (wifes Grandparents car new!) - For Sale-$200
Parting Out:
'72 Burb
'85 BMW 528e
WTB
C-30 1 ton dually
car trailer
burb rear quarters!
__________________
Dave aka "Wild"

Current truck
"Ida Mae" 71 K5 Blazer

Former Trucks
"Loretta" 71 Longbed (AZ)
"Tanya" 69 Stepside (AZ)
"Ferdinand" 71 Longhorn (SD)
"Patches" 67 Panel (IA/ KY)
"Rosita" 68 C30 (KY)

Instagram @Wildforwheels @k5_klub @c10university

Profile pic provided by Jeff Sundance
wild4wheels is offline   Reply With Quote
Old 04-02-2002, 09:37 PM   #8
Gordo
Registered User
 
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
Talking

Regulator should be found on the inside of the radiator support on the drivers side. This might be a good time to change over to the newer style alternator with the built in regulator.

------------------
1971 C10 swb stepside 350/700R4/3.73posi
Killingworth, Connecticut
__________________
1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03)
1998 S10 short bed
2002 S10 Blazer
1942 Oldsmobile
1958 Massey Harris Pony
1951 Wife
Killingworth, Connecticut

May those who love us, love us, any of those who do not love us, may God turn their hearts.
And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping.

A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.
Gordo is offline   Reply With Quote
Old 04-02-2002, 09:43 PM   #9
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Post

The square black box in this photo is the voltage reg. Ignore the way the wires are jumped. That plug should be plugged into it. These are dirt cheap at any parts store and if your new alt is not charging, I'll bet it is your regulater...10 bucks maybe.

------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio


Longhorn Man is offline   Reply With Quote
Old 04-02-2002, 09:57 PM   #10
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Post

oops, forgot the pic...


------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
If you need a pic posted, E-mail me at longhornmail@yahoo.com
Andy, in Columbus Ohio


Longhorn Man is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 08:34 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com