No Charge: Stator - Reg/Rect Issue

TheGreatestGoat

Recruit
Joined
Jun 17, 2018
Messages
2
Hey All, hoping somebody might be able to help me out!

I’ve got a 1996 Evinrude ELAN 35hp. Around 8 weeks ago I couldn’t start my engine. So I got a manual and diagnosed that the stator ignition coils were shot. The power pack was also gone. I replaced stator and powerpak and everything was fine.

The other day I noticed that my fishfinder was only recording 12.5 volts at WOT. Prior to this was running at 14.7 indicating the battery was being charged as it should be. A quick test back at home suggested that the charging system had failed (volts idling and at 2000rpm lower than at rest). I don’t have a test tank so couldn’t open her right up, so took her back out on the water and tested. I went out with a full charge (12.7v) To my surprise voltage started increasing with more RPMS. I was getting a charge after a good 30 mins at WOT I was recording 13.4v but this was as high as it went.
So it was getting some charge, but certainly not working 100%. Next trip out, didn’t work at all, no charge and battery was depleted on return.

So it’s either the stator or the regulator/rectifier (or both). I have the Seloc manual, so I bench tested the stator. Output range is noted as 0.45-0.54 ohms resistance. I got 0.3 ohms. Having said that it was a fair bit colder than the test specs and it’s a really cheap multimeter with only 1 decimal place. I’m not sure the variation in resistance is conclusive enough to say the charge coils are shot? Is there another test that I can perform on the stator to double check? A running test of some description?

In terms of testing the regulator/rectifier the manual suggests a test using both an ammeter and carbon pile load tester. Neither of which I have. Are there any simpler tests? To obtain those tools in Aus will be probably the same cost as a new reg...

Thanks a heap
 

TheGreatestGoat

Recruit
Joined
Jun 17, 2018
Messages
2
Update:

Tested VAC while engine running. 14.8 vac at slow idle 28vac at fast idle

Seems the stator is generating charge.

Tested reg/rec diodes

Red gave me .226 and then .226 when reversed
Grey gave me .996 and then 0 when reversed
Purple gave me .996 and then 0 when reversed

Am I right in saying I should have got equal resistance values on red and diagnosis is one of the diodes is shot and Reg/rec is no good?
 

Tan Truong

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Joined
Nov 13, 2022
Messages
3
Please help. I also have the same outboard (Elan 35hp Evinrude). All of a sudden I have no spark on all 3 cylinders. I have removed the kill switch and still no spark. I'm a novice but love learning. Before I spent a fortune in replacing the power pack, stator and trigger is there a way I can use a multimeter to test these items to make sure they are bad? I have already removed them from the motor. Any help would be greatly appreciated. The part number for the Stator is 584954 Trigger 584824 and the power pack is 584823.
 

Crosbyman

Vice Admiral
Joined
Nov 5, 2006
Messages
5,527
TAN... you hould open up your own topic because jumping in on another one's topic only confuses things and is not proper etiquette .
 

topgun3690

Lieutenant Junior Grade
Joined
May 7, 2019
Messages
1,053
Tan Truong......go back to the Johnson/Evinrude forum.....at the top you will see where it says "Thread Title" next to your green circle with a T in it.....click on that and it should open a new post for you. Put in a title and then your message. Might want to read over the forum rules while you're at it.....
 

jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
4,275
I suggest you go through all your wire connections. Use a wire brush or sand paper and get them shiny clean and retest. No wing nuts either. Use a wrench to tighten battery cables. Anyways, that's where I always start. After that isolate battery cables and ohm them. Post length and ohms readings and someone will advise.
 

Tan Truong

Recruit
Joined
Nov 13, 2022
Messages
3
I suggest you go through all your wire connections. Use a wire brush or sand paper and get them shiny clean and retest. No wing nuts either. Use a wrench to tighten battery cables. Anyways, that's where I always start. After that isolate battery cables and ohm them. Post length and ohms readings and someone will advise.
Hi and thanks for the recommendations. Any advice is greatly appreciated. From reading other posts with similar issues I have done what you suggested and still no spark. I believe it's due to one of the following going bad. The power pack (PN 584823), Stator (PN 0584954), or Trigger (PN0584924). I have removed these items from the motor and they all look good. I was hoping someone can help me by providing details on how I can use a multimeter to test these parts and determine which one is good or bad.
 
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