Thanks for the info!
Voltage Regulator (ext.) / How it works (1 Viewer)
- Thread starter bj40green
- Start date
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Ri-olà Rodolfo,
I have had this little idea: may be that the over voltage is caused from the wire from the battery which has a bad contact on the connector and sometimes it transmit a non correct voltage (very low) and so the regulator pump over normal?
In other words has an utility check also the battery wire (the B terminal)?
If this may be a cause I have found that the terminal block on the positive on the high battery (the one on wich I can mesure the 24v) is in not good condition: material corroded an internal part in bad condition. SO I have though that this may send to the VR bad information about the voltage of the battery and so VR read low voltage and charge....more than really necessary.
May be?
Thanks!
Paolo "pippi"
I have had this little idea: may be that the over voltage is caused from the wire from the battery which has a bad contact on the connector and sometimes it transmit a non correct voltage (very low) and so the regulator pump over normal?
In other words has an utility check also the battery wire (the B terminal)?
If this may be a cause I have found that the terminal block on the positive on the high battery (the one on wich I can mesure the 24v) is in not good condition: material corroded an internal part in bad condition. SO I have though that this may send to the VR bad information about the voltage of the battery and so VR read low voltage and charge....more than really necessary.
May be?
Thanks!
Paolo "pippi"
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Hi, Rudy!
Today I spent my time in the garage and I have had a surprise.
Last year I took my Toy to an electrician to check my system charge cause problems low charge and others...
Well he changed alternatore and VR; after one year I nave had Hugh chage problem and he changed the VR.
All OK till last week when I nave a peak at 32V for a couple of minutes and till now all OK.
This story to undetstand my surprise when I was cheking and I found that the VR connector has 5 pin (male) while the female connector has 6 connectors (female). I'll try to installat a new original VR and it overcharge.
In the 5VR plug i have found that there isn't the B terminal....but it works instead of the original that overcharge at the growing up of the engine rev. Well, now i have two thinks to understand: what has caused the peak of 32 volt with this 5 wire and how works this news configuration alternator and VR.
I have controlled the continuity from altetnator to VR and all seems OK.....
Today I spent my time in the garage and I have had a surprise.
Last year I took my Toy to an electrician to check my system charge cause problems low charge and others...
Well he changed alternatore and VR; after one year I nave had Hugh chage problem and he changed the VR.
All OK till last week when I nave a peak at 32V for a couple of minutes and till now all OK.
This story to undetstand my surprise when I was cheking and I found that the VR connector has 5 pin (male) while the female connector has 6 connectors (female). I'll try to installat a new original VR and it overcharge.
In the 5VR plug i have found that there isn't the B terminal....but it works instead of the original that overcharge at the growing up of the engine rev. Well, now i have two thinks to understand: what has caused the peak of 32 volt with this 5 wire and how works this news configuration alternator and VR.
I have controlled the continuity from altetnator to VR and all seems OK.....
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bj40green
Tssss, tssss
- Thread starter
- #104
Ciao Pippi,
That's a strange one. If it's true what you say then the VR is always in the full charge position which at a certain moment can cause overcharging. In other words there is no regulating the voltage.
For explanation look at post #38 on page 2.
Can you post pictures from the back of the Alternator, the Voltage Regulator and the connectors? I like to see the markings on that VR. Brand or Manufacturer and model number.
Rudi
That's a strange one. If it's true what you say then the VR is always in the full charge position which at a certain moment can cause overcharging. In other words there is no regulating the voltage.
For explanation look at post #38 on page 2.
Can you post pictures from the back of the Alternator, the Voltage Regulator and the connectors? I like to see the markings on that VR. Brand or Manufacturer and model number.
Rudi
PabloCruise
SILVER Star
Wow, very cool read Rudi, thanks!
Hi Rudi,
the VR is a NEW ERA AVR 573 24V, and actually works....it has the same position of the pin than the original except that there isn't the B pin , in the original placed in the corner under the F.
I suppose there is something in the alternator to aviod that this VR don't overcharge and last time does not work for few minutes.
As I can I'll post information and photo of altermator.
Thanks for your very important and useful help and knowledge!!
the VR is a NEW ERA AVR 573 24V, and actually works....it has the same position of the pin than the original except that there isn't the B pin , in the original placed in the corner under the F.
I suppose there is something in the alternator to aviod that this VR don't overcharge and last time does not work for few minutes.
As I can I'll post information and photo of altermator.
Thanks for your very important and useful help and knowledge!!
Hi Rudi,
tomorrow I'll go to the electrician to understand what he has done and what kind of alternator he has use on my toy.....
At same time I'll have ordered a new regulator " 5 pin" from him so now I have two new spare parts 5 and 6 pin.
But the problem is not solved cause I want know how actually works my Charging system.
I'll inform you about this strange puzzle (alternator, VR, wires...)
I understand the italian fantasy to solve problem but...there is always a but...not under my bonnet
.
Saluti!
Pippi
tomorrow I'll go to the electrician to understand what he has done and what kind of alternator he has use on my toy.....
At same time I'll have ordered a new regulator " 5 pin" from him so now I have two new spare parts 5 and 6 pin.
But the problem is not solved cause I want know how actually works my Charging system.
I'll inform you about this strange puzzle (alternator, VR, wires...)
I understand the italian fantasy to solve problem but...there is always a but...not under my bonnet
.Saluti!
Pippi
Hi Rudy,
I have done about 600 Km and, till now, ok.
This is the photo of the alternator. The electrician confirm to me that this alt need the VR 5 pin.
Now I have a new spare VR same model and....what else?
Another important thing, I have misured a difference between the indication on the internal voltage gauge and the measure with multimeter. The dash gauge measure more than multimeter. Sometime also the fuel gauge go to zero and after return on the right position...atcually iafter a long run on highway I have measured 28,4 with multimeter (the first hour of driving is less bit, 27,6/) ever with ligh on.
I have done about 600 Km and, till now, ok.
This is the photo of the alternator. The electrician confirm to me that this alt need the VR 5 pin.
Now I have a new spare VR same model and....what else?
Another important thing, I have misured a difference between the indication on the internal voltage gauge and the measure with multimeter. The dash gauge measure more than multimeter. Sometime also the fuel gauge go to zero and after return on the right position...atcually iafter a long run on highway I have measured 28,4 with multimeter (the first hour of driving is less bit, 27,6/) ever with ligh on.
others two pics, may be helpful to understand the wiring work...
bj40green
Tssss, tssss
- Thread starter
- #111
Pippi,
Let's go one step back.... What model and year is your Cruiser? You never told us.
Do you have the (Italian) VR engine in it?
Is that the original alternator?
I've not seen this alternator before (which doesn't mean anything).
Also I don't know the internals of that 5 wire VR so maybe that combination works.
Don't worry about the difference between the two Volt meters, unless the difference between the two is more then 1 Volt. Of course you have to measure the voltage at the same point to do the comparison.
28.4V means that your battery is full. Depending on the set point (factory setting) of the VR that value can also be 28.8V.
As long as the Voltage is not higher then 28.8V everything is fine.
Rudi
Let's go one step back.... What model and year is your Cruiser? You never told us.
Do you have the (Italian) VR engine in it?
Is that the original alternator?
I've not seen this alternator before (which doesn't mean anything).
Also I don't know the internals of that 5 wire VR so maybe that combination works.
Don't worry about the difference between the two Volt meters, unless the difference between the two is more then 1 Volt. Of course you have to measure the voltage at the same point to do the comparison.
28.4V means that your battery is full. Depending on the set point (factory setting) of the VR that value can also be 28.8V.
As long as the Voltage is not higher then 28.8V everything is fine.
Rudi
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Hi Rudy,
is a HJ61 GX 1988 engine 12ht diesel 24Volt.
If you are interested to, and if may be useful to add information to this very interesting thread, I can post some photo of the 5 wire VR New Era.
Thanks' for all your information!!!
is a HJ61 GX 1988 engine 12ht diesel 24Volt.
If you are interested to, and if may be useful to add information to this very interesting thread, I can post some photo of the 5 wire VR New Era.
Thanks' for all your information!!!
OK Rudy,
tomorrow I'll do!
tomorrow I'll do!
Hi Rudy,
this is the VR 5 wire I have (this is my spare part...).
The alternator is not the original is e new one aftermarket 50 A instead of 40A.
May be you are able to solve the puzzle
Paolo "pippi"
this is the VR 5 wire I have (this is my spare part...).
The alternator is not the original is e new one aftermarket 50 A instead of 40A.
May be you are able to solve the puzzle
Paolo "pippi"
bj40green
Tssss, tssss
- Thread starter
- #116
Pippi,
I give up. You have an aftermarket 50Amp alternator with an New Era AVR573 external 5 wire VR. Nothing of this relates to your truck and here is why:
The HJ61 was available in a regular model and a Cold Spec. model.
The regular model has a 24V 30Amp alternator with a 6 wire external VR.
The cold spec. model has a 24V 40Amp alternator with an internal VR.
Yours is an aftermarket 50Amp with an 5 wire external VR.
The only thing I can say is that the wire colors on the alt match with wire colors from the wiring diagram. Blue (N), Green (F) and Black (E) and the fat white one that is the B+ to the battery.
The only reference I found on the AVR573 is that it is a replacement for the Toyota Dyna truck and not related to any model 24V Land Cruiser.
Besides this I don't have a clue why and how the 5 wire VR works without the B terminal. Maybe, one day I'll find the solution.
For now......
Time for a
or
Rudi
FYI: your truck full model name is; HJ61LG-MNXW.
The cold spec model name is: HJ61LG-MNCXW
I give up. You have an aftermarket 50Amp alternator with an New Era AVR573 external 5 wire VR. Nothing of this relates to your truck and here is why:
The HJ61 was available in a regular model and a Cold Spec. model.
The regular model has a 24V 30Amp alternator with a 6 wire external VR.
The cold spec. model has a 24V 40Amp alternator with an internal VR.
Yours is an aftermarket 50Amp with an 5 wire external VR.
The only thing I can say is that the wire colors on the alt match with wire colors from the wiring diagram. Blue (N), Green (F) and Black (E) and the fat white one that is the B+ to the battery.
The only reference I found on the AVR573 is that it is a replacement for the Toyota Dyna truck and not related to any model 24V Land Cruiser.
Besides this I don't have a clue why and how the 5 wire VR works without the B terminal. Maybe, one day I'll find the solution.
For now......
Time for a
or Rudi
FYI: your truck full model name is; HJ61LG-MNXW.
The cold spec model name is: HJ61LG-MNCXW
Hi Rudi,
I give you an incorrect information, in origin I have an external regulator Toyota and the alternator was a 30 Amp.
This don't change the facts aboout what the hell I have under the bonnet but your information regarding wires is important in case of....problems.
Well, tomorrow I'll leave for a long trip at the return ( i hope to return with my toy) I'll inform you about what has appened (positive or negative).
At now good idea a good fresh beer
Pippi
I give you an incorrect information, in origin I have an external regulator Toyota and the alternator was a 30 Amp.
This don't change the facts aboout what the hell I have under the bonnet but your information regarding wires is important in case of....problems.
Well, tomorrow I'll leave for a long trip at the return ( i hope to return with my toy) I'll inform you about what has appened (positive or negative).
At now good idea a good fresh beer
Pippi
Voltage Regulator
Rudi it looks like I can figure out what to do from your great posts and pictures. But, there is always a "but", right? I am installing a complete new American Autowire Hwy 15 harness, which of course makes no mention of an external regulator. Also, the regulator I have is a six wire which doesn't match the FSM for my 1970 Non-USA Land Cruiser. The "T" shaped plug for the alternator isn't much help either since the color coding of the two wires is black and black. So I found a diagram associated with a Nippondenso voltage regulator and it appears from pictures you have shown that color coding is per a standard? Two of the attachments are not labeled identically so I will "assume" that the locations are the same with slightly different names? On the bottom side of my VR the light may have washed out the colors but as you look at the picture they are;
Top Left = White Black
Top Right = White Blue
Lwr Left = White Red
Mid-Right = Yellow
Lwr Right = White
Lwr Middle = White Green
I'm asking as I don't want to fry anything. Thanks for all your help and wishing you a Happy and Prosperous New Year.
Rudi it looks like I can figure out what to do from your great posts and pictures. But, there is always a "but", right? I am installing a complete new American Autowire Hwy 15 harness, which of course makes no mention of an external regulator. Also, the regulator I have is a six wire which doesn't match the FSM for my 1970 Non-USA Land Cruiser. The "T" shaped plug for the alternator isn't much help either since the color coding of the two wires is black and black. So I found a diagram associated with a Nippondenso voltage regulator and it appears from pictures you have shown that color coding is per a standard? Two of the attachments are not labeled identically so I will "assume" that the locations are the same with slightly different names? On the bottom side of my VR the light may have washed out the colors but as you look at the picture they are;
Top Left = White Black
Top Right = White Blue
Lwr Left = White Red
Mid-Right = Yellow
Lwr Right = White
Lwr Middle = White Green
I'm asking as I don't want to fry anything. Thanks for all your help and wishing you a Happy and Prosperous New Year.
bj40green
Tssss, tssss
- Thread starter
- #119
Hi Lenny,
I think you have a typo in your posting but it looks that you have a VR with the correct wire colors.
About the alternator..... can you post a pic where the connector is located AND the brand and model number?
The reason is that there are two different models using the same 3 prong connector and we have to figure out what type of alternator you have there.
Rudi
I think you have a typo in your posting but it looks that you have a VR with the correct wire colors.
About the alternator..... can you post a pic where the connector is located AND the brand and model number?
The reason is that there are two different models using the same 3 prong connector and we have to figure out what type of alternator you have there.
Rudi
Well I re-read my post and now you have me curious about my typo.
First thing in the morning I will take a picture of the alternator and see if I can get a model/part number off of it as well. Thank you.
First thing in the morning I will take a picture of the alternator and see if I can get a model/part number off of it as well. Thank you.
