home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 02-13-2018, 02:37 PM   #1
Old_goldvolvo240
Board Member
 
Join Date: Sep 2017
Default Alternator not alternating

Check wires, checked ground, checked connections, replaced alt, battery is good, but alt still wont maintain charge of battery any thoughts i havent checked?
Old_goldvolvo240 is offline   Reply With Quote
Old 02-13-2018, 02:42 PM   #2
lummert
Board Member
 
lummert's Avatar
 
Join Date: Jan 2008
Location: Portland IN
Default

Bad aftermarket stereo install. Loose alternator belt?
__________________
Trying to understand stupid people is like trying to pick up a turd by the clean end.
lummert is offline   Reply With Quote
Old 02-13-2018, 03:04 PM   #3
Old_goldvolvo240
Board Member
 
Join Date: Sep 2017
Default

Havent changed radio belts tight
Old_goldvolvo240 is offline   Reply With Quote
Old 02-13-2018, 03:07 PM   #4
dl242gt
Can play the blues
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

Has the battery been charged and checked? If the battery is good and the alternator isn't charging. You next want to check that the charge light circuit is providing 12v to the alternator D+ terminal. Make sure you have it on the proper spot.
__________________
Dave,
1982 242 turbo. 340k miles. Good stuff and lots of rust.
1993 245 Classic, 417k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
dl242gt is offline   Reply With Quote
Old 02-13-2018, 03:24 PM   #5
centason
CNT-FAI
 
centason's Avatar
 
Join Date: Jan 2013
Location: Ft.Mill, SC
Default

Quote:
Originally Posted by dl242gt View Post
Has the battery been charged and checked? If the battery is good and the alternator isn't charging. You next want to check that the charge light circuit is providing 12v to the alternator D+ terminal. Make sure you have it on the proper spot.
Also make sure you check voltage at the alternator and make sure the ground it attached from the alternator to the block. Is this the original alternator? Brushes/voltage regulator could be gone on it.
__________________
Member: TBCCS
"The kind of man who wants the government to adopt and enforce his ideas is always the kind of man whose ideas are idiotic." -H. L. Mencken
Quote:
Originally Posted by 240240 View Post
Yes, but I keep having the dream of shoving the Cocaine up my ass!
Quote:
Originally Posted by golgothan View Post
Ohh god no, I'd rather eat hot diarrhea than drive a 7/9
Quote:
Originally Posted by RedFridge View Post
You sons of bitches are the biggest thread de-railers in forum history.
Any forums history.
centason is offline   Reply With Quote
Old 02-13-2018, 03:35 PM   #6
ZVOLV
<Master Tech>
 
ZVOLV's Avatar
 
Join Date: Nov 2002
Location: California
Default

Test lamp to exciter wire. Excited?
__________________
No Start Thread
ZVOLV is offline   Reply With Quote
Old 02-13-2018, 06:41 PM   #7
PCH
Board Member
 
Join Date: Oct 2008
Location: SoCal
Default

Quote:
Originally Posted by Old_goldvolvo240 View Post
alt still wont maintain charge of battery any thoughts i havent checked?
Interesting...
So what's the problem exactly? The charging light on the dash stays on, the output voltage is too low or the car doesn't start?
PCH is offline   Reply With Quote
Old 02-13-2018, 07:11 PM   #8
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

After finally getting my 240's charging to work properly, first question: Does the battery warning come on with the key on, engine off?
__________________
'63 PV Rat Rod
'93 245 16VT Classic #1141
JohnMc is offline   Reply With Quote
Old 02-13-2018, 07:57 PM   #9
durk80
Board Member
 
durk80's Avatar
 
Join Date: Nov 2015
Location: Athens, GA
Default

Quote:
Originally Posted by JohnMc View Post
After finally getting my 240's charging to work properly, first question: Does the battery warning come on with the key on, engine off?
Yes, and also you will briefly see it when you turn the car off.
durk80 is offline   Reply With Quote
Old 02-13-2018, 10:41 PM   #10
Old_goldvolvo240
Board Member
 
Join Date: Sep 2017
Default

Tested it, its a bad alt thank you everyone who replied.
Old_goldvolvo240 is offline   Reply With Quote
Old 02-14-2018, 12:56 PM   #11
Mr. V
Board Member
 
Mr. V's Avatar
 
Join Date: Jul 2004
Location: Portland, Oregon metro
Default

I've usually been able to breathe new life into a Bosch alternator for my brick by replacing the voltage regulator in the rear.

Simple to do; the problem typically turned out to be worn brushes, which the replacement voltage regulator replaces with new ones.
Mr. V is offline   Reply With Quote
Old 02-14-2018, 01:44 PM   #12
ZVOLV
<Master Tech>
 
ZVOLV's Avatar
 
Join Date: Nov 2002
Location: California
Default

Yep. Much better than putting some aftermarket reman junk in your car that has probably failed once before in it's lifetime. Easier too. Good point!
ZVOLV is offline   Reply With Quote
Old 02-14-2018, 08:56 PM   #13
Volvoist
Board Member
 
Join Date: Jan 2003
Location: Newark/Bear, DE
Default

Quote:
Originally Posted by Mr. V View Post
I've usually been able to breathe new life into a Bosch alternator for my brick by replacing the voltage regulator in the rear.

Simple to do; the problem typically turned out to be worn brushes, which the replacement voltage regulator replaces with new ones.
This.

Quote:
Originally Posted by ZVOLV View Post
Yep. Much better than putting some aftermarket reman junk in your car that has probably failed once before in it's lifetime. Easier too. Good point!
And this too...

If you must replace the alternator, get a good used OE Bosch unit or a reman'd Bosch. Avoid the AutoZone or equivalent aftermarket garbage.
__________________
Mike Rausch

Newark/Bear, Delaware

Vintage, classic, and unusual vehicle sales. Specializing in ALL Volvo RWD models

www.swedishbrickyard.com

Email: mike@swedishbrickyard.com

Feedback here: http://forums.turbobricks.com/showthread.php?t=228756
Volvoist is offline   Reply With Quote
Old 02-17-2018, 03:23 PM   #14
ogamer777
Board Member
 
ogamer777's Avatar
 
Join Date: May 2016
Location: PNW
Default

Or pick up a nice 100A Nippon denso alt
__________________
84 242 DL M46 212k
82 244 GLT (15G) M46 237k+
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
81 264 GLE M46 105k

Feedback thread: http://forums.turbobricks.com/showthread.php?t=322924

Looking for some hard to find Volvo accessories for my 82 GLT. Especially rubber trunk mats.

Stuff I have already:
http://forums.turbobricks.com/showthread.php?t=331526
ogamer777 is offline   Reply With Quote
Old 02-17-2018, 07:49 PM   #15
rom
Board Member
 
rom's Avatar
 
Join Date: Oct 2004
Location: With mintyfresh.
Default

Quote:
Originally Posted by ogamer777 View Post
Or pick up a nice 100A Nippon denso alt
i'll second this one. and while you're at it grab some of yoshi's aluminum bushings. it's like bolting Buddha to Jesus then watching them generate much needed amps.
__________________
Religious people scare me.
rom is offline   Reply With Quote
Old 02-18-2018, 09:00 AM   #16
Old_goldvolvo240
Board Member
 
Join Date: Sep 2017
Default

New issue, d+ has power when key on engine off but when key on engine on theres no power any ideas or anyone have access to wiring diagram
Old_goldvolvo240 is offline   Reply With Quote
Old 02-18-2018, 09:24 AM   #17
white855T
Board Member
 
Join Date: Sep 2013
Location: Dallas,TX
Default

I wouldn't recommend any Nippon denso alternator. They fail a lot faster than a Bosch unit. Stick with Bosch.
__________________
Buyer/Seller Feedback

http://turbobricks.com/forums/showthread.php?t=301654
white855T is offline   Reply With Quote
Old 02-18-2018, 11:15 AM   #18
ZVOLV
<Master Tech>
 
ZVOLV's Avatar
 
Join Date: Nov 2002
Location: California
Default

Quote:
Originally Posted by Old_goldvolvo240 View Post
New issue, d+ has power when key on engine off but when key on engine on theres no power any ideas or anyone have access to wiring diagram
It's normal to read, like, a volt on it when running if it's connected. Disconnect it and it would be another story. Whats the issue? No charge? Is your ground wire OK? Belt tight? Slap 12v to the exciter terminal manually once per engine start to determine if it's an exciter circuit issue or not.

Last edited by ZVOLV; 02-18-2018 at 11:39 AM..
ZVOLV is offline   Reply With Quote
Old 02-19-2018, 11:19 AM   #19
Old_goldvolvo240
Board Member
 
Join Date: Sep 2017
Default

Quote:
Originally Posted by ZVOLV View Post
It's normal to read, like, a volt on it when running if it's connected. Disconnect it and it would be another story. Whats the issue? No charge? Is your ground wire OK? Belt tight? Slap 12v to the exciter terminal manually once per engine start to determine if it's an exciter circuit issue or not.
Reaplaced d+ wire and now everything is okay, i check continuity (cant spell) in old wire and it was all okay but i saw cracks in it so replaced it anyway not sure if it grounded its self when i started the car or what but its fixed.
Old_goldvolvo240 is offline   Reply With Quote
Old 02-21-2018, 11:15 AM   #20
rwb
Board Member
 
Join Date: Aug 2017
Location: 740
Default

So my alternator is also not charging my battery (Bosch 80A unit I believe) and while it will be a few days before I can see the car and test what's wrong, I'm trying to be prepared.

Question: Is the $9 Uro Parts voltage regulator that Rockauto sells garbage? Is it worth 4 times as much for a genuine Bosch? I've removed all electrical functions from the car except for wipers and engine stuff so it shouldn't see a very heavy electrical load.
rwb is offline   Reply With Quote
Old 02-21-2018, 12:21 PM   #21
Volvoist
Board Member
 
Join Date: Jan 2003
Location: Newark/Bear, DE
Default

Quote:
Originally Posted by rwb View Post
So my alternator is also not charging my battery (Bosch 80A unit I believe) and while it will be a few days before I can see the car and test what's wrong, I'm trying to be prepared.

Question: Is the $9 Uro Parts voltage regulator that Rockauto sells garbage? Is it worth 4 times as much for a genuine Bosch? I've removed all electrical functions from the car except for wipers and engine stuff so it shouldn't see a very heavy electrical load.
Stick with Bosch.
Volvoist is offline   Reply With Quote
Old 02-21-2018, 07:44 PM   #22
dl242gt
Can play the blues
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

An important thing to get is a regulator with a high setpoint. Get a 14.4 or even a 14.6 volt set point regulator. I've used aftermarket ones like HUGO and beck arnley with success.

Of course bosch does need the money to help pay for the emissions scandal it has gotten away with so far.
dl242gt is offline   Reply With Quote
Old 02-21-2018, 08:08 PM   #23
durk80
Board Member
 
durk80's Avatar
 
Join Date: Nov 2015
Location: Athens, GA
Default

I agree with dl242gt, the Huco voltage regulator is a nice replacement. I have it in two of my cars.

https://www.pelicanparts.com/cgi-bin...tage+regulator

Or, you could always reuse the voltage regulator; replace and solder the brushes if they are worn significantly.
The video below is what I used to help me through the process.
https://www.youtube.com/watch?v=bTcMD5_EznI

Good Luck!
durk80 is offline   Reply With Quote
Old 02-21-2018, 08:42 PM   #24
rwb
Board Member
 
Join Date: Aug 2017
Location: 740
Default

Quote:
Originally Posted by dl242gt View Post
An important thing to get is a regulator with a high setpoint. Get a 14.4 or even a 14.6 volt set point regulator. I've used aftermarket ones like HUGO and beck arnley with success.

Of course bosch does need the money to help pay for the emissions scandal it has gotten away with so far.
Bosch is 14v, HUCO is 14.6 and roughly two delicious sandwiches cheaper, my decision is easy.
rwb is offline   Reply With Quote
Old 02-22-2018, 12:09 AM   #25
dl242gt
Can play the blues
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

I must have been thinking Hugo when I wrote that. Yeah, my little box here has HUCO on it.
part 13 0514 is what I have. Enjoy the grub!
dl242gt is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 On

Forum Jump


All times are GMT -4. The time now is 04:01 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.