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  #1  
Old 08-01-2021, 08:11 PM
CubbyRI CubbyRI is offline
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Default New SG and VR not charging on a Marine Engine

hi all,

well I installed the cub starter generator on an antique engine, and finally decided to hook up the regulator which is new. no charge.

Someone said i have to "polarize" the generator. Other posts say not to.

I read that quick grounding the Field terminal should produce an unregulated charge. It didnt.

Not sure where to go next, how to test the generator or of it needs to be "polarized"?

Any advice helpful!
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  #2  
Old 08-01-2021, 09:39 PM
R Bedell R Bedell is offline
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What model of tractor are you working on ??

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  #3  
Old 08-01-2021, 09:49 PM
CubbyRI CubbyRI is offline
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I have several Cubs, but this Starter-Generator is mounted to an antique one lunger marine engine. This is a new starter gen and I had never hooked up the new regulator until today.

I did the "polarize zap" thing, and tried grounding the field to test charging and the volts dont increase. I think that means the SG wont charge but its new so it should.

I figured to ask how to test the generator section, ohms? I dunno?
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Model 100 Dec 2020 - Running condition, has snow plow!
Model 123 Nov 2020 Hydro needs much work, or resto, building front end loader for this one
Model 100 Feb 2019 apart for total frame-off / sandblast etc resto

Model 70 Sep 2020 needs total resto and an engine, or for parts
Model 70/100 Mar 2021 buried in rust, frozen engine, got free for parts.

two spare hydro rears
"in for a penny, in for a pound!"
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  #4  
Old 08-01-2021, 09:53 PM
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darkminion_17 darkminion_17 is offline
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I have to say how do you ground a marine engine when it is in the water????
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  #5  
Old 08-01-2021, 10:16 PM
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Billy-O Billy-O is offline
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Quote:
Originally Posted by darkminion_17 View Post
I have to say how do you ground a marine engine when it is in the water????
Or an airplane when it is in the air.....?????
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  #6  
Old 08-01-2021, 10:37 PM
CubbyRI CubbyRI is offline
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Smile

LOL can we get to "how to tell if the generator is good or bad"???

Then I will gladly share the secret to grounding a boat!
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Model 100 Dec 2020 - Running condition, has snow plow!
Model 123 Nov 2020 Hydro needs much work, or resto, building front end loader for this one
Model 100 Feb 2019 apart for total frame-off / sandblast etc resto

Model 70 Sep 2020 needs total resto and an engine, or for parts
Model 70/100 Mar 2021 buried in rust, frozen engine, got free for parts.

two spare hydro rears
"in for a penny, in for a pound!"
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  #7  
Old 08-01-2021, 11:01 PM
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ol'George ol'George is offline
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No secret, boats tend to go to ground in shallow wadder
Is yer regulator grounded to the engine, starter and anchor? do you have the regulator wires hooked up properly?
Are you using worms/minnows or arti fficial bait?.
Maybe try noodling catfish if dough balls don't work.
Maybe use the generator for an anchor?
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  #8  
Old 08-01-2021, 11:18 PM
CubbyRI CubbyRI is offline
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How do I check or test if the generator is good?
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Model 100 Dec 2020 - Running condition, has snow plow!
Model 123 Nov 2020 Hydro needs much work, or resto, building front end loader for this one
Model 100 Feb 2019 apart for total frame-off / sandblast etc resto

Model 70 Sep 2020 needs total resto and an engine, or for parts
Model 70/100 Mar 2021 buried in rust, frozen engine, got free for parts.

two spare hydro rears
"in for a penny, in for a pound!"
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  #9  
Old 08-02-2021, 12:00 AM
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darkminion_17 darkminion_17 is offline
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Quote:
Originally Posted by CubbyRI View Post
How do I check or test if the generator is good?
Put it on one of your cubs, if it works then there is an issue with your boat anchor
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  #10  
Old 08-02-2021, 12:05 AM
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TheSaturnV TheSaturnV is offline
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Old video of me doing a couple of tests on a Cub S/G. This was for my 147 restoration, I skipped ahead for you:

https://youtu.be/_FhmC8Mk9Lw?t=690
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