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 jjwebb123
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 posted on February 27th, 2010 at 10:14 AM |
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generator charge rate?
Is there a way i can check my generator charge rate without taking it to the auto sparky.We know that the generator has a bearing issue,but instead of
replacing it,if it is charging correctly then we will do the bearings and nothing else.But if it is not we will do a rebuilt on it,eg bushes,Instead
of spending money i don't have to get a new one.
So yeah if know of any way to hook a voltmeter up to the gen and check if it is charging right,that would be great.
cheers guys
~Jas~
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
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jjwebb123
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| posted on February 27th, 2010 at 09:13 PM |
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anyone?
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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jsheppard64
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| posted on February 28th, 2010 at 02:26 AM |
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umm i have a volt meter in the dash and when it's charging i read 13.5+
it's not charging at idle so it's like 12.7 something
but if it doesn't charge u might want to look at the regulator under the back seat aswell
good luck
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jjwebb123
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| posted on February 28th, 2010 at 08:38 AM |
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so its not charging at idle? so it only charges when you are driving it? how the hell am i spose to measure that if i don't have a voltmeter gauge in
my dash. 
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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bugzla
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| posted on February 28th, 2010 at 09:16 AM |
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get someone to control the accelorator and bring the rev range up
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jjwebb123
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| posted on February 28th, 2010 at 11:15 AM |
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arr i see lol,so what should it be? around 13.5+ when at high rev and 12.7 something when at idle.Where do i read that at the battery or at the
generator?
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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 matberry
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| posted on February 28th, 2010 at 11:23 AM |
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Correct charge voltage is 14.6 for a lead acid car battery, but anywhere over the already mentioned 13.5 is a good place to start. Voltage is only
part of the story but all you can check with a voltmeter. Mind you you could check the voltage at the generator ie before the regulator, it should be
15- 15.7V, and you can see the condition of the brushes through the holes in the gen body. If the spring clips are disapearing into the brush holder
they are well worn, there should be about6-8mm of brush protruding out of the holder, meaning you have plenty of brush life left.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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bugzla
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| posted on February 28th, 2010 at 11:23 AM |
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at the genny or at the battery thats upto u hold the revs up around 2500 -3000
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matberry
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| posted on February 28th, 2010 at 11:31 AM |
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| Quote: | Originally
posted by bugzla
at the genny or at the battery thats upto u hold the revs up around 2500 -3000
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I'm sorry but this is not correct, at the gen is the gen voltage, after the reg is the regulated voltage and at the battery is also the regulated
voltage while the revs are up otherwise it's the battery voltage.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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bugzla
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| posted on February 28th, 2010 at 11:43 AM |
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sorry matt
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matberry
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| posted on February 28th, 2010 at 11:56 AM |
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| Quote: | Originally
posted by bugzla
sorry matt
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Cheers mate, but no need to apologise to me. We all learn stuff every day so I was correcting the mistake. That is all. 
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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jjwebb123
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| posted on February 28th, 2010 at 12:12 PM |
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so.....
At gen points there should be=15.7volts
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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jjwebb123
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| posted on February 28th, 2010 at 12:54 PM |
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| Quote: | Originally
posted by matberry
Correct charge voltage is 14.6 for a lead acid car battery, but anywhere over the already mentioned 13.5 is a good place to start. Voltage is only
part of the story but all you can check with a voltmeter. Mind you you could check the voltage at the generator ie before the regulator, it should be
15- 15.7V, and you can see the condition of the brushes through the holes in the gen body. If the spring clips are disapearing into the brush holder
they are well worn, there should be about6-8mm of brush protruding out of the holder, meaning you have plenty of brush life left.
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ok so i just went and did a test.
my battery at idle was around 14.00volts (around)
now this is where i get confused.My generator at idle at the points on the generator was around 7.40 and when i reved it,it got lower,is that supposed
to happen,it got to around 4.80.now i dont know if this is right.i had my voltmeter on the DCV-20 part so i think that is right
please help.
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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jjwebb123
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| posted on February 28th, 2010 at 03:24 PM |
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bump please
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
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matberry
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| posted on February 28th, 2010 at 06:11 PM |
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At the gen you want the meter between D+ and earth.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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jjwebb123
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| posted on February 28th, 2010 at 06:31 PM |
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so D+ is on the gen right? and do you use the earth on the gen or just find an earth?
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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jjwebb123
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| posted on February 28th, 2010 at 06:35 PM |
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http://www.nls.net/mp/volks/htm/gen.htm
like that?
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
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matberry
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| posted on February 28th, 2010 at 06:45 PM |
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Yep like that. Earth......on gen or anywhere on clean metal....ASSUMING the gen earth and engine grounds are good, it's all the same.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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jjwebb123
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| posted on February 28th, 2010 at 07:09 PM |
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mate i just did the test recommended on that site.with d+ and ground hooked up at idle was around 22.2 at high rev shot up to 48-50.
and the battery went to 14 like they said.That sounds good doesn't it?
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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matberry
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| posted on February 28th, 2010 at 07:20 PM |
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Ahhh yes , just reread that site and saw that that high voltage reading as the D+ is disconnected, yes all good. If you dont disconnect it you'll
only see high 15's by memory, it is stamped on the gen body how much voltage it's capable of.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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jjwebb123
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| posted on February 28th, 2010 at 07:38 PM |
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yeah cool so the gen should be in good nick then ay? um my car only breaks down when it gets hot,could it be the coil?
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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matberry
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| posted on February 28th, 2010 at 07:56 PM |
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That's a hard one, could be coil, fuel pump, fuel tank or line blockage or tappets to name the first things to check for.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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jjwebb123
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| posted on February 28th, 2010 at 08:10 PM |
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its gets hot,starts loosing power ,and after a nurse home stops.
should i post a new topic,maybe someone might know.
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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matberry
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| posted on February 28th, 2010 at 09:33 PM |
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The new post bit is up to you, but still think any of the above problems could be the cause, you can go through them one by one to prove each system,
fuel electrics etc.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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jjwebb123
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| posted on February 28th, 2010 at 09:47 PM |
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yeah that is what i am doing at the moment process of elimination.thanks
"A car for the people, an affordable Volkswagen, would bring great joy to the masses and the problems of building such a car must be faced with
courage."
Adolf Hitler At opening of 1934 Berlin Auto Show
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