User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-20-2022, 12:32 PM #1
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
AutoTech Alternator & Battery Gassing

Anyone running one of these alternators w a flooded lead acid battery? mine puts out a very steady 14v. seems it might be causing the battery to gas excessively.

anyone experienced similar?

is there something i could put inline to get a lower float voltage when the battery is fully charged? i think the alternator may be overcharging.
__________________
'98 4Run SR5 v6 4x4-Orig Owner
Manual Transmission
Bilstein 5100 (front/rear)
OME 890 Springs (rear)
'99 Tall Springs (front)
psea17 is offline   Reply With QuoteReply With Quote
Old 10-20-2022, 01:23 PM #2
ArthurKotb's Avatar
ArthurKotb ArthurKotb is offline
Member
 
Join Date: Mar 2022
Location: Kentucky
Posts: 236
Real Name: Rich
ArthurKotb will become famous soon enough ArthurKotb will become famous soon enough
ArthurKotb ArthurKotb is offline
Member
ArthurKotb's Avatar
 
Join Date: Mar 2022
Location: Kentucky
Posts: 236
Real Name: Rich
ArthurKotb will become famous soon enough ArthurKotb will become famous soon enough
Have you checked to see if you have a dead/weak cell? If you do the battery will not reach the float stage.
__________________
Rich
2004 V8 4Runner 130K+ miles
Kentucky
ArthurKotb is offline   Reply With QuoteReply With Quote
Old 10-20-2022, 02:07 PM #3
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
battery is brand new.

the last one gassed badly and died but that one was neglected by 2 cs144 alternators that went bad.
__________________
'98 4Run SR5 v6 4x4-Orig Owner
Manual Transmission
Bilstein 5100 (front/rear)
OME 890 Springs (rear)
'99 Tall Springs (front)
psea17 is offline   Reply With QuoteReply With Quote
Old 10-20-2022, 03:17 PM #4
fourwd1's Avatar
fourwd1 fourwd1 is offline
Moderator
 
Join Date: Jun 2004
Location: the Socialist State of Maryland
Posts: 11,207
Real Name: The Chosen One
fourwd1 is a jewel in the rough fourwd1 is a jewel in the rough fourwd1 is a jewel in the rough fourwd1 is a jewel in the rough
fourwd1 fourwd1 is offline
Moderator
fourwd1's Avatar
 
Join Date: Jun 2004
Location: the Socialist State of Maryland
Posts: 11,207
Real Name: The Chosen One
fourwd1 is a jewel in the rough fourwd1 is a jewel in the rough fourwd1 is a jewel in the rough fourwd1 is a jewel in the rough
You need 13.8V minimum to charge a battery, 14V should not be a problem. My '84 alt puts out ~15V and never had an issue with a battery.
__________________
- the Internet - the mother-ship of people who don't know much and aren't afraid to go public
'84 4Runner - ARBed 5.29s F&R, 4.7 & 2.28 t-cases, 2" drive train lift, BudBuilt x-member/skid, 30 spl Longs
'83 Toy P/U - Buick 231 V6, Holley 4 bbl, Weiand intake, Downey headers, TH350 w/700R4 low gearset,
'89 4Runner SR5 - stock
fourwd1 is offline   Reply With QuoteReply With Quote
Old 10-20-2022, 03:52 PM #5
gamefreakgc's Avatar
gamefreakgc gamefreakgc is offline
Elite Member
 
Join Date: Oct 2014
Location: Citrus Heights, California
Posts: 6,943
Real Name: Jerod
gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of
gamefreakgc gamefreakgc is offline
Elite Member
gamefreakgc's Avatar
 
Join Date: Oct 2014
Location: Citrus Heights, California
Posts: 6,943
Real Name: Jerod
gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of gamefreakgc has much to be proud of
Mine puts out between 14.3-13.6V and have no battery issues. If the battery is brand new I would suspect a manufacturing defect.
__________________
'98 4Runner SR5 - 4x4 JDM 5VZ-FE Supercharged - 240K miles.
326WHP 347TQ

AEM F/IC 6, 11 PSI, 3" Intake and 3" Exhaust
Jerod's Supercharged T[u]RD Build
gamefreakgc is offline   Reply With QuoteReply With Quote
Old 10-20-2022, 04:00 PM #6
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
just to be sure, i checked all cables for resistance, went back and sanded off paint where the frame ground is located, redid my body ground by adding a rivnut screw sized for 5/16 lugs, cleaned all contacts, add dielectric grease on all lugs/terminals and re-did the alternator's positive cable lug at the battery. it wasnt good.

so i guess I'll wait a bit to see if the gassing damage (corroded connections) was actually from the old battery.

appreciate all the input. sounds like a steady 14v to an FLA battery isnt an issue.
__________________
'98 4Run SR5 v6 4x4-Orig Owner
Manual Transmission
Bilstein 5100 (front/rear)
OME 890 Springs (rear)
'99 Tall Springs (front)
psea17 is offline   Reply With QuoteReply With Quote
Old 10-21-2022, 11:17 AM #7
ArthurKotb's Avatar
ArthurKotb ArthurKotb is offline
Member
 
Join Date: Mar 2022
Location: Kentucky
Posts: 236
Real Name: Rich
ArthurKotb will become famous soon enough ArthurKotb will become famous soon enough
ArthurKotb ArthurKotb is offline
Member
ArthurKotb's Avatar
 
Join Date: Mar 2022
Location: Kentucky
Posts: 236
Real Name: Rich
ArthurKotb will become famous soon enough ArthurKotb will become famous soon enough
Is there a different voltage regulator for that alternator? If it's a high amp alternator it may need a matching regulator.

BTW, dielectric grease is non-conductive. it's purpose is to prevent high energy spark from going where it shouldn't. It probably won't make a difference on your battery terminals but don't put it on your spark plug connection, only on the plug boot. :-D
__________________
Rich
2004 V8 4Runner 130K+ miles
Kentucky
ArthurKotb is offline   Reply With QuoteReply With Quote
Old 10-21-2022, 11:23 AM #8
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
it is a hi output alternator. but dont really understand the implications of the point youre making.

is there a specific question i should ask the manufacturer or certain features the regulator should have?

appreciate any further info you could share.
__________________
'98 4Run SR5 v6 4x4-Orig Owner
Manual Transmission
Bilstein 5100 (front/rear)
OME 890 Springs (rear)
'99 Tall Springs (front)
psea17 is offline   Reply With QuoteReply With Quote
Old 10-21-2022, 01:56 PM #9
ArthurKotb's Avatar
ArthurKotb ArthurKotb is offline
Member
 
Join Date: Mar 2022
Location: Kentucky
Posts: 236
Real Name: Rich
ArthurKotb will become famous soon enough ArthurKotb will become famous soon enough
ArthurKotb ArthurKotb is offline
Member
ArthurKotb's Avatar
 
Join Date: Mar 2022
Location: Kentucky
Posts: 236
Real Name: Rich
ArthurKotb will become famous soon enough ArthurKotb will become famous soon enough
Quote:
Originally Posted by psea17 View Post
it is a hi output alternator. but dont really understand the implications of the point youre making.

is there a specific question i should ask the manufacturer or certain features the regulator should have?

appreciate any further info you could share.
I was just wondering if the new alternator had an internal regulator. I'm not up on alternators and thought maybe if the OEM alternator had an external regulator that it might need to be changed as well. I would expect the voltage at the battery to change, particularly right after startup. There would be a heavy drain on starting, high voltage until it reached maintenance level, then remain between 12.7 and 13.1.

While 14 is a little high, it's not bad. As long as you're electrolyte level is okay then you're good to go. If you're constantly adding water then maybe you do have an issue.
__________________
Rich
2004 V8 4Runner 130K+ miles
Kentucky
ArthurKotb is offline   Reply With QuoteReply With Quote
Old 10-21-2022, 02:15 PM #10
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
voltage was much higher when i started it (14.6 +/-) in the morning but quickly returned to 13.9-14v within a minute or so.

guess I'll call autotech and see what they say about the regulator, if any.
__________________
'98 4Run SR5 v6 4x4-Orig Owner
Manual Transmission
Bilstein 5100 (front/rear)
OME 890 Springs (rear)
'99 Tall Springs (front)

Last edited by psea17; 10-21-2022 at 05:04 PM.
psea17 is offline   Reply With QuoteReply With Quote
Old 10-21-2022, 04:48 PM #11
brillo_76's Avatar
brillo_76 brillo_76 is offline
Senior Member
 
Join Date: May 2017
Location: Western PA
Posts: 4,697
Real Name: Jon
brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future
brillo_76 brillo_76 is offline
Senior Member
brillo_76's Avatar
 
Join Date: May 2017
Location: Western PA
Posts: 4,697
Real Name: Jon
brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future brillo_76 has a brilliant future
Charging voltage 13.8 to about 15v would be fine. you start heading to 16 volts you are getting too high. I wouldn't be concerned at all for ranges in the 14 volts and bouncing around at times. :-)
__________________
7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread: https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer: https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information: https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html
brillo_76 is offline   Reply With QuoteReply With Quote
Old 11-28-2022, 09:47 PM #12
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
psea17 psea17 is offline
Member
 
Join Date: Apr 2017
Location: mesa, az
Posts: 210
psea17 is on a distinguished road
Hey guys,

An update....As best I can tell, my problems originated from the pos cs144 alternators. They weren't charging well and my battery was damaged. putting a solid alternator in just exaggerated the battery's death.

I redid my positive wire from alternator to battery. I also redid all grounds. i'm starting to find having a rivnut tool is the bomb!! Now that there's a new battery, I'm not having any problems. Battery stays charged. There's no corrosion on any contacts after a few months and there's no battery gassing.

I'm very happy w/ the autotech alternator's performance.

regards,
__________________
'98 4Run SR5 v6 4x4-Orig Owner
Manual Transmission
Bilstein 5100 (front/rear)
OME 890 Springs (rear)
'99 Tall Springs (front)
psea17 is offline   Reply With QuoteReply With Quote
Reply

Tags
alternator , battery , excessively , experienced , gas

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bad battery or alternator? StreetCreeper 3rd gen T4Rs 41 11-12-2019 03:48 PM
new alternator, battery runi9 3rd gen T4Rs 8 08-12-2019 10:50 AM
Battery? Alternator? Zackadeez 3rd gen T4Rs 10 11-23-2013 04:13 PM
Bad Battery and/or Alternator??? mustangaustin34 3rd gen T4Rs 6 12-14-2009 11:04 PM
Battery or Alternator? Krystle Classic T4Rs 0 11-30-2009 07:41 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 08:20 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020