1984 and the 1983 BJ60 both have a relay , One is marked Charging relay , the other truck is just a black 6 wire plug. I have the downloaded the FSM , plus Max Ellerys Landcruiser book for the wiring diagrams .
I have not seen this relay shown in any diagram.
I have run an avr test (no ripple) ,it shows charging around 14V 1800 rpm, and looks steady. Great , go for the first drive of the day , alls fine , as the temp starts to show on the gauge , warm air from vents (this is the timing it seems) I notice that the fan is working extra fast , headlights bright volt gauge is 16 volts @rpm 1800-2500 .
I pull over , idle it , pull throttle out to 1800 , voltage is now regulated to 14 or so on the cluster. So i wait, nothing .
Carry on , after two mins or more up to ten , i can hear the fan pickup speed , check voltage cluster 16 volts again. Cycle key while driving to off and back on , voltage is steady at below 14 till the glows finish I think.(not really sure if its the glows) but after say 10 -20 seconds the voltage is back to 14 , It can stay there or go to 16. even while at 16 volts , say after all the fooling and pulling over , I just drive it for an hour and it settles down.
There is no real set pattern , while driving across Canada , I noticed this a few times , 15 hrs drive at a time.
What Im trying to figure is what this charging relay is all about. I have not been able to get this alt to do the overcharge while testing. this is an internal reg and a stock alt. 200kms on this rotten (from rust) truck.
Am i just missing this relay in the diagrams or the diagrams are of the FJ usa units. All i see are external voltage regulators on the diagrams , but i have seen mentioning of a charge relay , and repairing them with a cold solder joint. But i would love to understand and see the method to the madness of the wiring schematics..
VT
I have not seen this relay shown in any diagram.
I have run an avr test (no ripple) ,it shows charging around 14V 1800 rpm, and looks steady. Great , go for the first drive of the day , alls fine , as the temp starts to show on the gauge , warm air from vents (this is the timing it seems) I notice that the fan is working extra fast , headlights bright volt gauge is 16 volts @rpm 1800-2500 .
I pull over , idle it , pull throttle out to 1800 , voltage is now regulated to 14 or so on the cluster. So i wait, nothing .
Carry on , after two mins or more up to ten , i can hear the fan pickup speed , check voltage cluster 16 volts again. Cycle key while driving to off and back on , voltage is steady at below 14 till the glows finish I think.(not really sure if its the glows) but after say 10 -20 seconds the voltage is back to 14 , It can stay there or go to 16. even while at 16 volts , say after all the fooling and pulling over , I just drive it for an hour and it settles down.
There is no real set pattern , while driving across Canada , I noticed this a few times , 15 hrs drive at a time.
What Im trying to figure is what this charging relay is all about. I have not been able to get this alt to do the overcharge while testing. this is an internal reg and a stock alt. 200kms on this rotten (from rust) truck.
Am i just missing this relay in the diagrams or the diagrams are of the FJ usa units. All i see are external voltage regulators on the diagrams , but i have seen mentioning of a charge relay , and repairing them with a cold solder joint. But i would love to understand and see the method to the madness of the wiring schematics..
VT
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