Hi Guys!
Long time lurker and FZJ80 owner since a year. Fixed a lot of problems with the help of this forum! I will be starting a build tread for al the mods, but first i could use some help.
Just finished a 3500 miles road trip without a single problem. But now that the 80 is back to daily duties I have a charge light coming up. (During the road trip I had a fridge which had no problem keeping cold in very hot weather.)
Sometimes the charge light stays on for a little while, but most of the time it's fluctuating, along with the rpm.
-I checked all the connections I could find and all good.
-Belts look ok. They are Gates belts, already have OEM belts waiting on the shelf.
-Battery voltage with the engine off is 12.45
-Battery voltage with the engine on fluctuates from 12,6 to 14,3
-Engine cracks strong with a short voltage drop to 10,8
My interior lights and headlights have always pulsed a little in rhythm with the engine at idle, this goes away when the rpm's get higher. Now the pulsing is worse and in rhythm with the charging light going on/off. So with more rpm everything pulses faster en with less rpm the pulsing is slower.
This is a reading from the OBD2 port (above voltage reading are all from a multimeter directly at the battery)
The strange thing from this reading is that the alternator seems to do nothing at idle. Only when the RPM is raised the alternator kicks in at around 1250rpm. After that the alternator stays on even when the engine is back at idle. (but it is fluctuating)
I tried to ground terminal F at the alternator (as stated in the FSM) but no change. If I did this correctly this would mean the regulator is still ok.
Could it be belt/pulley related? I have a substantial Front Main Seal leak, but the pulley's aren't oily.
Or are the brushes almost gone?
Or could it be the battery?
In this video you can hear the rhythm i'm talking about. Is this normal or is a bearing giving up?
I hope someone could give me a direction to look. Before I start pulling alternators
Thanks!
Long time lurker and FZJ80 owner since a year. Fixed a lot of problems with the help of this forum! I will be starting a build tread for al the mods, but first i could use some help.
Just finished a 3500 miles road trip without a single problem. But now that the 80 is back to daily duties I have a charge light coming up. (During the road trip I had a fridge which had no problem keeping cold in very hot weather.)
Sometimes the charge light stays on for a little while, but most of the time it's fluctuating, along with the rpm.
-I checked all the connections I could find and all good.
-Belts look ok. They are Gates belts, already have OEM belts waiting on the shelf.
-Battery voltage with the engine off is 12.45
-Battery voltage with the engine on fluctuates from 12,6 to 14,3
-Engine cracks strong with a short voltage drop to 10,8
My interior lights and headlights have always pulsed a little in rhythm with the engine at idle, this goes away when the rpm's get higher. Now the pulsing is worse and in rhythm with the charging light going on/off. So with more rpm everything pulses faster en with less rpm the pulsing is slower.
This is a reading from the OBD2 port (above voltage reading are all from a multimeter directly at the battery)
The strange thing from this reading is that the alternator seems to do nothing at idle. Only when the RPM is raised the alternator kicks in at around 1250rpm. After that the alternator stays on even when the engine is back at idle. (but it is fluctuating)
I tried to ground terminal F at the alternator (as stated in the FSM) but no change. If I did this correctly this would mean the regulator is still ok.
Could it be belt/pulley related? I have a substantial Front Main Seal leak, but the pulley's aren't oily.
Or are the brushes almost gone?
Or could it be the battery?
In this video you can hear the rhythm i'm talking about. Is this normal or is a bearing giving up?
I hope someone could give me a direction to look. Before I start pulling alternators
Thanks!