Vanguard stator

nitro1 · 01-10-2021, 01:00 PM

Tearing down my 18hp big block and came across the stator and it’s only a 1wire setup and only half rounded stator and has a option to use a full rounded stator since it has 4 screw holes, so would it work if I bought a full rounded stator and purchase a rectifier to mount on side of my engine for charging ? Or just stick with the one Red wire ? Just don’t know how to charge a battery with the one red wire. Sorry for so many questions first build so many questions :)

slonomo · 01-10-2021, 02:09 PM

When you get your service manual it will show you all that. Your engine should have a rectifier that converts the AC volts to DC. The stator will produce AC volts.

Can you post a pic?

ProjectClubCar · 01-10-2021, 02:55 PM

Something like this?

The flywheels are not interchangeable, and it is the magnets on the "flywheel" that determines the output of the alternator. The stator in not interchangeable.
I do think there are a few members, that have switched to a regulated 16 amp setup. I not sure the regulated 20 amp set up will work with 18hp Vanny....
But i am pretty sure you have to buy the flywheel and stator as one unit to make it work....
I thought the 18hp Vannys had the16 amp regulated I guess I'm wrong??

nitro1 · 01-10-2021, 03:15 PM

Yes like that, The one I have now is half rounded and didn’t have a rectifier unless they removed it. I’ll post some pics here in a few

nitro1 · 01-10-2021, 03:27 PM

The flywheel is magnetized all the way around if that’s normal or not

slonomo · 01-10-2021, 04:23 PM

The rectifier/voltage regulator is mounted above the starter, has yellow and red wires and plastic plug/clips.

I'm thinking someone monkeyed with that engine. Unless that stator is a single phase? I've never seen one with only one side. All the one's I've worked on had both.

nitro1 · 01-10-2021, 04:54 PM

Well I don’t think it was ever touched inside the motor, they might have took the rectifier off but I’m just curious about the half of the stator unless like u said it’s single phase

slonomo · 01-10-2021, 10:13 PM

I'd have to consult my manual.

nitro1 · 01-15-2021, 10:32 AM

Came across this page this morning and though it could be helpful or for reference

https://www.vanguardpower.com/conten...nator_id_a.pdf

So looks like my stator is This one here

slonomo · 01-15-2021, 02:02 PM

Yep that's a DC only alternator, no rectifier with that. Those types of engines are usually used in a piece of equipment that doesn't need to power anything except the battery for electric start, say generator or pressure washer. Usually lawn and garden tractors/mowers will have the AC alternator with more power that goes into a rectifier/regulator.

Did you get that from your manual?

01-10-2021, 01:00 PM	#1
nitro1 Gone Wild Join Date: May 2010 Location: OHIO Posts: 1,517	Vanguard stator Tearing down my 18hp big block and came across the stator and it’s only a 1wire setup and only half rounded stator and has a option to use a full rounded stator since it has 4 screw holes, so would it work if I bought a full rounded stator and purchase a rectifier to mount on side of my engine for charging ? Or just stick with the one Red wire ? Just don’t know how to charge a battery with the one red wire. Sorry for so many questions first build so many questions :)

01-10-2021, 02:09 PM	#2
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: Vanguard stator When you get your service manual it will show you all that. Your engine should have a rectifier that converts the AC volts to DC. The stator will produce AC volts. Can you post a pic?

01-10-2021, 03:27 PM	#5
nitro1 Gone Wild Join Date: May 2010 Location: OHIO Posts: 1,517	Re: Vanguard stator The flywheel is magnetized all the way around if that’s normal or not

01-10-2021, 04:54 PM	#7
nitro1 Gone Wild Join Date: May 2010 Location: OHIO Posts: 1,517	Re: Vanguard stator Well I don’t think it was ever touched inside the motor, they might have took the rectifier off but I’m just curious about the half of the stator unless like u said it’s single phase

01-10-2021, 10:13 PM	#8
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: Vanguard stator I'd have to consult my manual.

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01-15-2021, 02:02 PM	#10
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,436	Re: Vanguard stator Yep that's a DC only alternator, no rectifier with that. Those types of engines are usually used in a piece of equipment that doesn't need to power anything except the battery for electric start, say generator or pressure washer. Usually lawn and garden tractors/mowers will have the AC alternator with more power that goes into a rectifier/regulator. Did you get that from your manual?

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