Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> Voltage Regulator Working?, I can't tell if my battery is charging
oakdalecurtis
post Jul 27 2016, 11:42 AM
Post #1


Oakdalecurtis
***

Group: Members
Posts: 1,327
Joined: 5-June 15
From: Oakdale, Ca
Member No.: 18,802
Region Association: Central California
I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
87m491
post Jul 27 2016, 11:58 AM
Post #2


Member
**

Group: Members
Posts: 274
Joined: 29-July 12
From: Portland, the original!
Member No.: 14,731
Region Association: North East States
I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM) *

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
oakdalecurtis
post Jul 27 2016, 12:06 PM
Post #3


Oakdalecurtis
***

Group: Members
Posts: 1,327
Joined: 5-June 15
From: Oakdale, Ca
Member No.: 18,802
Region Association: Central California
QUOTE(87m491 @ Jul 27 2016, 10:58 AM) *

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM) *

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?


Thanks, just wasn't sure.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
porschetub
post Jul 27 2016, 06:30 PM
Post #4


Advanced Member
****

Group: Members
Posts: 4,701
Joined: 25-July 15
From: New Zealand
Member No.: 18,995
Region Association: None
QUOTE(oakdalecurtis @ Jul 28 2016, 06:06 AM) *

QUOTE(87m491 @ Jul 27 2016, 10:58 AM) *

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM) *

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?


Thanks, just wasn't sure.


Did you buy this one from Pelican ? I have one also before I started hearing about issues with them (IMG:style_emoticons/default/sad.gif) (IMG:style_emoticons/default/sad.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
oakdalecurtis
post Jul 27 2016, 06:47 PM
Post #5


Oakdalecurtis
***

Group: Members
Posts: 1,327
Joined: 5-June 15
From: Oakdale, Ca
Member No.: 18,802
Region Association: Central California
QUOTE(porschetub @ Jul 27 2016, 05:30 PM) *

QUOTE(oakdalecurtis @ Jul 28 2016, 06:06 AM) *

QUOTE(87m491 @ Jul 27 2016, 10:58 AM) *

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM) *

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?


Thanks, just wasn't sure.


Did you buy this one from Pelican ? I have one also before I started hearing about issues with them (IMG:style_emoticons/default/sad.gif) (IMG:style_emoticons/default/sad.gif)

No, my mechanic got it from a local source. I gave it back to him, no good to me.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ThePaintedMan
post Jul 28 2016, 08:14 AM
Post #6


Advanced Member
****

Group: Members
Posts: 3,886
Joined: 6-September 11
From: St. Petersburg, FL
Member No.: 13,527
Region Association: South East States
The one I got from AutoZone (had to order) worked fine. I think it was made by Wells. Only like ten bucks.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
oakdalecurtis
post Jul 28 2016, 08:57 PM
Post #7


Oakdalecurtis
***

Group: Members
Posts: 1,327
Joined: 5-June 15
From: Oakdale, Ca
Member No.: 18,802
Region Association: Central California
Found the problem, as some here suggested, it was the relay board. Take a look a this picture of the back, allowing female contacts to be pushed down when VR was installed. Repaired it and now it's charging 13.2 volts! Thanks to all here for great advice!
curtis
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 20th May 2024 - 06:53 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...