CROSMAN® FULL AUTO AK1 Stator/ rectifier output | Muck Boots: Free Shipping on orders over $50! Stator/ rectifier output | Shop gifts for any angler at Rapala.com! Stator/ rectifier output
Thanks Thanks:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 20

Thread: Stator/ rectifier output

  1. #1
    Join Date
    Oct 2012
    Location
    al
    Posts
    574
    Post Thanks / Like

    Default Stator/ rectifier output


    I am trying to chase some demons possibly in my motor. I have a 2001 Johnson 115. Model is j115plsie. Reading through the technical manuals it says the charging system should be outputting 14.1 volts. I am not able to get anywhere past 12.7 to 12.8. I have recently replaced the battery and have a CDI stator and rectifier. I have been doing some at home testing and I'm getting around 36 volts AC at the stator output. On the rectifier when the red wire is disconnected from the solenoid I was getting around 50 volts DC when it is connected to the solenoid it drops down to 12.7 to12.8. I'm not able to get the charging system to stabilize at 14.1 like the manual says. The tachometer works as it should so just wanting to ask the group if it's possible that either the stator is not outputting enough voltage or is the rectifier not converting enough voltage I'm just kind of at a loss right now. When fishing on the lake the battery voltage drops to around 12.3 after running the electronics for a while but when I start up and take it to wide open throttle 12.8 is about the max that I'm able to get. I did attempt an amperage test on the rectifier but since my multimeter is a 10 Amp Max I ended up blowing the fuse so I know it's putting out at least that much. It just has me wondering if there could be a problem with the rectifier since everything checks out as far as testing the diodes but it's not putting out the voltage required when it's connected to the battery

    Sent from my SM-S215DL using Crappie.com Fishing mobile app

  2. #2
    Join Date
    Jan 2020
    Location
    Clarksville, Indiana
    Posts
    2,157
    Post Thanks / Like

    Default

    We just changed out a buddies a couple days ago. His was charging 14.5 all the time.
    Problem was most likely rectifier but we went ahead and replaced the stator and rectifier.
    His motor is an old Evinrude 88 Special.
    Now charging 13.5.


    Sent from my iPhone using Crappie.com Fishing mobile app

  3. #3
    Join Date
    Oct 2012
    Location
    al
    Posts
    574
    Post Thanks / Like

    Default

    I read that CDI recommends not using agm or maintenance free batteries or it voids the warranty. And my regulator/rectifier is only to maintain battery voltage and replenish lost voltage by starting, not designed to charge the battery so i may have to get a separate cranking only battery. I have a deep cycle battery currently that I am using to start the outboard but also have all my electronics on it also. The more I read the more conflicting information I get, some say its okay to use the battery I have and then others say it's a no go. I was trying to keep my weight down and not have to get another battery since I already have 2 group 27 for the trolling motor and the current 27 I am using now.

    Sent from my SM-S215DL using Crappie.com Fishing mobile app

  4. #4
    Join Date
    Jul 2017
    Location
    MO
    Posts
    926
    Post Thanks / Like

    Default

    Quote Originally Posted by huntersdad View Post
    I read that CDI recommends not using agm or maintenance free batteries or it voids the warranty. And my regulator/rectifier is only to maintain battery voltage and replenish lost voltage by starting, not designed to charge the battery so i may have to get a separate cranking only battery. I have a deep cycle battery currently that I am using to start the outboard but also have all my electronics on it also. The more I read the more conflicting information I get, some say its okay to use the battery I have and then others say it's a no go. I was trying to keep my weight down and not have to get another battery since I already have 2 group 27 for the trolling motor and the current 27 I am using now.

    Sent from my SM-S215DL using Crappie.com Fishing mobile app
    The reason behind that is because the charging system is unregulated, if ran for extended periods it can cause some electrolyte loss in the battery. Typically with those systems you will not see much at idle, but after running at speed for a good while you should see some voltage increase, often higher than 14v. If you're making a lot of short runs it may take a while to come up.
    Likes darcie1 LIKED above post

  5. #5
    Join Date
    Oct 2019
    Location
    Cameron N.C.
    Posts
    875
    Post Thanks / Like

    Default

    You need a DVA that plugs into your multi meter, to accurately read voltage.
    Likes darcie1 LIKED above post

  6. #6
    Join Date
    Feb 2013
    Location
    Ohio
    Posts
    553
    Post Thanks / Like

    Default

    Agree that voltage will be lower at slow speeds.

  7. #7
    Join Date
    Mar 2011
    Location
    Wisconsin
    Posts
    755
    Post Thanks / Like

    Default

    Have you checked your battery? Charge it unhook every thing check voltage let it sit for a day or two and recheck voltage. Many times a battery tester will show a bad battery as good.

  8. #8
    Join Date
    Jul 2017
    Location
    MO
    Posts
    926
    Post Thanks / Like

    Default

    Quote Originally Posted by Bricks View Post
    Have you checked your battery? Charge it unhook every thing check voltage let it sit for a day or two and recheck voltage. Many times a battery tester will show a bad battery as good.
    Definitely worth looking at. I don't trust digital testers either. Best to put it on an old school load tester with the toaster windings.

  9. #9
    Join Date
    Oct 2012
    Location
    al
    Posts
    574
    Post Thanks / Like

    Default

    The battery is brand new, well to me anyway but has a production date of may 22. I charged it overnight and unplugged it and went straight to the lake. The rectifier is regulated I assume, it's water cooled. I'm going to purchase a starting only battery and separate my electronics from it since that could be part of the issue. I'm running 3 helix units, mega live w/target lock the heading sensor and the occasional radio. I was just thinking that on my volt meter, I could see how much voltage was being put in the battery by the charging system instead of just the battery voltage itself. Is there a way to check that? I'd like to know how many volts are going in the battery from the rectifier throughout the different rpm ranges if it's possible.

    Sent from my SM-S215DL using Crappie.com Fishing mobile app

  10. #10
    Join Date
    Jan 2020
    Location
    Clarksville, Indiana
    Posts
    2,157
    Post Thanks / Like

    Default



    Red Flag…Now what??
    As I wrote a couple post back
    Put new battery, stator and rectifier on buddies 1994 Johnson/Evinrude and NOW it is charging 17.2 volts. Pegging out volt meter on dash.
    I would have thought it was the meter but the Garmin on the console is also reading 17.2 volts.
    He has that unit wired to start battery. Don’t know why!!
    I think he has a bad rectifier but who knows since it was new also.
    Any thought will be appreciated.
    Not trying to hijack the thread.
    Chuck.


    Sent from my iPhone using Crappie.com Fishing mobile app

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

BACK TO TOP