Excellent video it gives me the opportunity to test the alternator before I go and buy one to find out if it is the alternator and not a short wire thank you for providing this information
No offence you should do your home work first this is an alternator not a dynamo it requires 7-12v to excite the stator before it will produce any voltage
They dont use LIN1, LIN2, COM, BSS1, BSS2 In the US they use DF, DFC which is nothing more than a PWM control LIN1, LIN2, COM, BSS1, BSS2 is computer controlled theirs no way to fire up the alternator without special interfaces even stripping the alternator down wont work because the field voltages are different. Normally between 4v and 6v and 2 - 4 amps
Err not true, it will depend on load. As he had none, his biggest regret might have been blowing his diode pack with amount of open circuit volts he'd get out of the alternator, even at low revs. As several people stated, full load output would not be maintained until the alternator was spinning at 3000 plus which would normally be around 700-1200 rpm engine speed due to pulley gearing. Compare an alternator pulley diameter to an old DC car generator to see the difference required between the two. DC generator has around two or more times the diameter pulley so produces charge at half the revs of an alternator but total power is typically MUCH more limited.
I liked the concept of using the drill to spin and test it on the ground but, u were suppose to hook a dc supply to excite the rotor winding according to Faraday's Law for electromagnetism. Go back and do that and show us otherwise thats a zero
You have the right idea,BUT like others are saying you need to excite the field with a little current,AND should show the nominal direction of rotation if it was mounted in vehicle. Your on correct path but it's incomplete. Can not deduce a correct hypothesis from this example....YET.
Exactly! That test in video is failing because of that! I am not saying that alternator is bad (it might be damaged) but the test was done wrong! Sorry bro ;)
Have a 98 Ford Mustang and for the life of me I couldn't figure out why my alternator wasn't charging. I tried every everyone was saying I took my instrument cluster out unplugged it and noticed a couple of the copper conductors were touching I simply straighted them out plugged it back in and bam my alternator started charging so if you can't figure it out check out this repair it saved me about $175 and I'm not even a mechanic but I'm not stupid either. This little trick could help someone out I hope
this video is one of the best out there it's simple & to the point none of this technical crap i have to try this cause my alternator is bad & i don't think i even have to remove it
no- it is NOT the 'best'- not even close. He needs to demonstrate the SAME test on a known good alternator. How do we know he's even turning the alt pully in the right direction? How do we know he connected it correctly? Does his meter work? This test is incomplete.
sorry but this type of alternator need an external power source like a battery so the internal regulator can try and work.. just spinning it wont make it work.. you need at least 6v for excitation. there are self excitation alternators around but this isnt one of them.. usually found on plant equipment...
I like it now I coukd charge my iPhone. Do excite it u need laptop battery charger to create voltage try it then show it afterwards. At least the comments were kind to you.
Vandara Chim I’ve tried myself. Using Toyota Alternator 1kw. There is a voltage up to 50VDC when there is high rpm and no battery connection. The voltage only became 17VDC after there is Battery connected to the alternator
Depending on the plug wiring, one wire is the feed to the alternator and one to the dashboard led which is fed from the ecu...probably not all like the above but at least you have point of start.
You can’t even speak English, but you’re judging the words he uses, despite “earth” being a metric version of “ground”. Back to English school for you, old chap!
First time...you check with the multimeter the windings resitance to ground...must be 0L...an then the diodes...an then you apply some voltage to excite..and last time you make your test !
Good intention, but you need 12v on the system to test, produce the same rpm, also isn’t “earth” and I couldn’t see clearly your multimeter. Update a step by step in the video.
Without the separate 12v power which supposed to excite the winding, this alternator will never produce power.That’s why you have three electrical points connected to your alternator, one is minus connected to the housing, one(thin wire is the 12V to excite the winding) and the thick wirewhich is the alternator output.This video is confusing for everyone.
The negative terminal you connected to the earth? Earth is what is you are standing on. no? You know what I mean? No I don't. My guess is you hooked up the negative terminal of your meter to the metal body of the alternator itself. Right?
Sometimes / manycase it's not alternator problem, its belt loose just a bit ......yap, just a bit will cause car battery not enough charging ,soon , battery will weak and death.
Yeah that is not even how an alternator works. You could test it like that if you hooked it to a battery and had the Exciter wire and sensor wire and a ground hooked up
Is a crazy guy need battery to energize before it work after that you cannot turn by any electric drill because if it work is become a magnetize your drill will be stop by it self
"alternators dont charge battres they keep them charged" What in the world are you talking about? Alternators provides power to the vehicle's loaded accessories. One of these loads is the vehicles battery. When the battery drains after start ups, your alternator will provide the necessary voltage and current to charge up the battery to its maximum capacity.
ZeZeppelin2017 I’ve charged plenty of batteries with alternators. as long as they can still hold charge, it will work. On older cars I throw in a working battery and start it. while the car is still running, remove the good battery and put the uncharged one and keep it running for a bit. It will charge the battery. on newer models, you run the risk of damaging the computer. Not conventional at all, and wouldn’t recommend doing it on cars with an ECM.
Please take this as constructive criticism. That video turned obnoxious and extremely annoying real quick trying to hear you talk over your loud impact.
Excellent video it gives me the opportunity to test the alternator before I go and buy one to find out if it is the alternator and not a short wire thank you for providing this information
You should supply 12 volts to one of the field to excite current, its like an electragnet
You need to apply some DC voltage to the rotor windings . Please do more research and upload .
Well you make one 4 us
How to test alternator Ford Focus 2500 on ground
How to determine which ones are the rotor windings and how many volts to supply them. I would think. I clicked on the wrong video.
This test wont work you need to apply 12v to the voltage regulator to produce output volttage.
i was thinking the same thing
The blind leading the blind
If anyone wonders, this is NOT how you test an alternator.
Good idea but you should apply power to the excite lead of the regulator unless it's a self exciting alternator. Good video though.
Totally awesome, thank you
No offence you should do your home work first this is an alternator not a dynamo it requires 7-12v to excite the stator before it will produce any voltage
true
You can add a 12v battery to excite the stator.
Right
Plus your drill does not rev to 3000 rpm
True about the 12v feed wrong about the 3000 rpm required...it will give same voltage on 700-800 rpm, same when the engine is at idle
It would have been great if you would of grabbed a good alternator and did the same test to see the difference.
Regardless of whether or not your info is correct; once you've demonstrated your point, turn off the noise maker.
He is fucking asshole
@@ejer. dude hes not an asshole. He wants to help people. He just doesnt know how.
🤣😂🤣😂🤦🏿♂️
Lol I guess the stator is ever so slightly magnetic since they can still produce slight voltage without power.
They dont use LIN1, LIN2, COM, BSS1, BSS2 In the US they use DF, DFC which is nothing more than a PWM control LIN1, LIN2, COM, BSS1, BSS2 is computer controlled theirs no way to fire up the alternator without special interfaces even stripping the alternator down wont work because the field voltages are different. Normally between 4v and 6v and 2 - 4 amps
Thats how not to test an alternator at home.
@@BlackLung87 learn how to read before u comment. Read my comment again
😂😂
Hahahaha evrybady wants to filming clips on youtube today....he dont even know whats talking about.....very funny video...
Hell, I’ve never thought of doing that, always wished I had a test bench
Amazing content 👌 keep up the great work ✨
You need to supply 12volts to the alternator you will see the impact drill struggles to turn it to cut emf
Err not true, it will depend on load. As he had none, his biggest regret might have been blowing his diode pack with amount of open circuit volts he'd get out of the alternator, even at low revs.
As several people stated, full load output would not be maintained until the alternator was spinning at 3000 plus which would normally be around 700-1200 rpm engine speed due to pulley gearing.
Compare an alternator pulley diameter to an old DC car generator to see the difference required between the two. DC generator has around two or more times the diameter pulley so produces charge at half the revs of an alternator but total power is typically MUCH more limited.
@@boblewis5558 yes but he still didn't provide the 12 v for the exciter cirquit. any brand new one wouldn't produce much more either
if you test a good alternator using the same test then we can know the test works
BINGO
I liked the concept of using the drill to spin and test it on the ground but, u were suppose to hook a dc supply to excite the rotor winding according to Faraday's Law for electromagnetism. Go back and do that and show us otherwise thats a zero
Wow, I am quite exciter.
good job
You have the right idea,BUT like others are saying you need to excite the field with a little current,AND should show the nominal direction of rotation if it was mounted in vehicle. Your on correct path but it's incomplete. Can not deduce a correct hypothesis from this example....YET.
This guy has potential just needs a good teacher.
yes but first somebody has to fill holes in knowledge
Especially in this day and age when most kids think the whole world revolves around a damn phone or a damn video game!
@@brt-jn7kg an then I tied an onion to my belt, which was the style st the time.
Thank you so much for your demonstration is because needed to know that about my alternator
Alternator will not function correctly unless you excite the field windings, so connect to a 12v battery and connect a substitute ignition light
Exactly! That test in video is failing because of that! I am not saying that alternator is bad (it might be damaged) but the test was done wrong! Sorry bro ;)
No dc supply to excite the armature
Have a 98 Ford Mustang and for the life of me I couldn't figure out why my alternator wasn't charging. I tried every everyone was saying I took my instrument cluster out unplugged it and noticed a couple of the copper conductors were touching I simply straighted them out plugged it back in and bam my alternator started charging so if you can't figure it out check out this repair it saved me about $175 and I'm not even a mechanic but I'm not stupid either. This little trick could help someone out I hope
this video is one of the best out there it's simple & to the point none of this technical crap i have to try this cause my alternator is bad & i don't think i even have to remove it
no- it is NOT the 'best'- not even close. He needs to demonstrate the SAME test on a known good alternator. How do we know he's even turning the alt pully in the right direction? How do we know he connected it correctly? Does his meter work? This test is incomplete.
12v connect to B and rectifier block, black --- to alt .body, only then 13. 8v or slightly more indicates its a good alternator
you need power exite the rotor in side the alternator
sorry but this type of alternator need an external power source like a battery so the internal regulator can try and work.. just spinning it wont make it work.. you need at least 6v for excitation. there are self excitation alternators around but this isnt one of them.. usually found on plant equipment...
Will you also show us the starter function with out battery????
yes, he will use button battery for clock/watch
@@makantahi3731 🤣🤣🤣 i ‘ll remember that dewalt drill is very strong 💪🏼💪🏿💪🏿💪🏽
The alternator need to charging the earth so the Star can bright better 🤣
how do you excite the armature winding. IT does not have a permanent magnet.
I like it now I coukd charge my iPhone. Do excite it u need laptop battery charger to create voltage try it then show it afterwards. At least the comments were kind to you.
You need to apply some DC voltage to the rotor windings
Correct...most modern alternators do not self-excite
I can
Need to connect to battery in order to see it charged to 13.35 volt or not
Vandara Chim I’ve tried myself. Using Toyota Alternator 1kw. There is a voltage up to 50VDC when there is high rpm and no battery connection.
The voltage only became 17VDC after there is Battery connected to the alternator
An alternator that charges 13.35 volts is already bad
the comments are priceless!!!
You've eaten too many crabbie Patties. You need to have a mechanic show you how we actually test alternators.
How do you excite the alternator for testing?
Misleading information
He dont exite
@tri-u watersports 😉
connect a 12 v battery.
Depending on the plug wiring, one wire is the feed to the alternator and one to the dashboard led which is fed from the ecu...probably not all like the above but at least you have point of start.
Couldn't hear a word you said because you were talking while you were running the impact. Other than that, it was informative.
Fastest and easy way how not to test an alternator.
the best part of this video is the comment section…. READ READ and LEARN!!
Good videos 👍🏻
as far as i know you need to excite the alternator with an external battery in order for it to work...
ahhhhhh, no
excite the alternator? hahahaha
excite the field coils with external battery before it starts producing electricity on its own..
@@josephleegabilo7022 no. moving stater does that. coils transfer energy as the magnetic field collapses.
dont try to correct them....they think it has permanent magnets....like the motor in a toy car XD
Calling ground as ”earth” is a good sign that you can't take this clip very seriously.
You can’t even speak English, but you’re judging the words he uses, despite “earth” being a metric version of “ground”.
Back to English school for you, old chap!
David Uranie WTF makes you think I can't speak English, you dumb fuck????
😂🤣😂🤣😂💀
2.7k likes but he doesn't have an Fing clue how an alternator works 😄
The drill is a good idea, now need to know the rpm and hook to a 12 volt battery.
good but you shoulve done a test with a good and bad alternator to see the difference,,,,,
Nice!!!
What is a good reading what is minimum reading.
Mine was .44.
I cant beleve you talk the most important part all the time with that noise
First time...you check with the multimeter the windings resitance to ground...must be 0L...an then the diodes...an then you apply some voltage to excite..and last time you make your test !
Drill started then I went deaf lol
Thanks bro
Hi thanks for video, but on your first test you say .55 is ok but what is the range that is ok ? I’m getting .47 is that ok. Thanks
It would have helped if you showed exactly what settings you used on the multi meter and where to put the wires on it
@DimebagVision he sure did. what vidio were you watching bee jaygee?
On my alternator where the belt goes dose not spin “the alternator is off the car” I believe it so pose to is this normal
I do like a comedy show.. 🤣 🤣 🤣
This video could not be more WRONG!!!! Just stop watching now! This guy has no idea what he is doing. Skip this one now!
This needs exciter voltage to produce output correct?
Great
Was the audio portion unintelligible because of the mic being too close to the impact driver, or was it just me?
yup thats what i do to test regulator circuit i make.
How you made the magmatic field in the rotor??
Right
Hai pensato di buttarlo perché e troppo vecchio, e non carica.. forse i diodi si sono distaccati
40mv volts cool test, could you so a good one
Couldn’t hear WTF you are saying bro
Good intention, but you need 12v on the system to test, produce the same rpm, also isn’t “earth” and I couldn’t see clearly your multimeter. Update a step by step in the video.
Without the separate 12v power which supposed to excite the winding, this alternator will never produce power.That’s why you have three electrical points connected to your alternator, one is minus connected to the housing, one(thin wire is the 12V to excite the winding) and the thick wirewhich is the alternator output.This video is confusing for everyone.
most likely blown diode noit bearing
But you are not putting an excitation current on the rotor.... so of course it won't work.... do you even know what you are doing?
Can’t hear you over the grill.
It needs gears and atleast 100 000 rpm to see real shit 😂
Ok boos
RIP impact motor
This is true....but I believed t regulator plays A Part somewhere in there that turns the alternator on and off to regulate voltage
No! The alternator creates AC voltage. The regulator/RECTIFIER cuts the sine wave in half to change it to dc.
कितनी पावर बैटरी के लिए कौन अल्टीनेटर चाहिए।
you need to have a laod
That's not how you test an alternator, you're supposed to provide a 12v to the coils to energize it 🤣
Should ave tried speaking when your blinking drill wasn't going.
The negative terminal you connected to the earth? Earth is what is you are standing on. no? You know what I mean? No I don't.
My guess is you hooked up the negative terminal of your meter to the metal body of the alternator itself. Right?
Bad alternator bearings does not impare the charge
Most modern alternators need a power supply to excite...spinning it with a drill will do nothing
Couldn't hear you over the drill
I wo def if the haters ever realized meters sometimes they have N option to put out power??💯💯💯😜✌ can give off
You need more than that to test an alternator
Sometimes / manycase it's not alternator problem, its belt loose just a bit ......yap, just a bit will cause car battery not enough charging ,soon , battery will weak and death.
You need to to connect a battery first
You know your going to have to energise the field coil it is not a generator.
good one thanx!!
Yeah that is not even how an alternator works. You could test it like that if you hooked it to a battery and had the Exciter wire and sensor wire and a ground hooked up
You do not understand what are you doing. Sorry,You need more knowledge about alternators.
Set multimeter to 20v a
The brushes is gone it need new brushes
You have to polorize it.
You might as well replace it if ypu do all that.
Drill rpm?
No alternator will produce power without dc voltage to the field!!!!!! This video is not correct! Please do more research.
Is a crazy guy need battery to energize before it work after that you cannot turn by any electric drill because if it work is become a magnetize your drill will be stop by it self
Hahahaha are you ok ? The rotor nead to be a electromagnet with a batery to gate energy output...
Sorry that is not the way to test a alternator. alternators dont charge battres they keep them charged
So, how can a drained battery be fully charged after running then? Do explain.
"alternators dont charge battres they keep them charged"
What in the world are you talking about? Alternators provides power to the vehicle's loaded accessories. One of these loads is the vehicles battery. When the battery drains after start ups, your alternator will provide the necessary voltage and current to charge up the battery to its maximum capacity.
This is the dumbest thing I've heard,alternators do charge batteries my friend that's the purpose of it
ZeZeppelin2017 I’ve charged plenty of batteries with alternators. as long as they can still hold charge, it will work. On older cars I throw in a working battery and start it. while the car is still running, remove the good battery and put the uncharged one and keep it running for a bit. It will charge the battery. on newer models, you run the risk of damaging the computer. Not conventional at all, and wouldn’t recommend doing it on cars with an ECM.
wrong
@@scarface4913
Please take this as constructive criticism. That video turned obnoxious and extremely annoying real quick trying to hear you talk over your loud impact.
You're doing it wrong, the stator produced ac voltage, why you measured in dc?
It's bad cause it's sooo dark