Hi all,
Another alternator post....or is it?
So driving home the other day probably 45mins into a 1hr journey, gave it some pedel on a straight piece of road which resulted in the battery light and some others coming on
Typical alternator fault, so I went looking at the alternator...no funny noises, seemed to be charging, but when I turned all the accessories on I could smell something was getting hot.
It had melted the output post shroud on the alternator, the battery was now also getting down the 13V with the engine running with minimal accessories on.
So I changed the alternator, no I have 14.7v after start up (after the intake heater cuts out).....which is a bit high for my liking? thoughts?
Seems like good ampage coming out the Alt too...I have been able to measure 90A on high idle, its a 120A so at 2k rpm should be achievable.
It is a non brand, which replaced the previous non brand from Milners (which I am sceptical about now as the original only lasted 13k miles & 11 months).
I should have saved my OEM and reman'd it
So I have checked all fuses, although cant find a few, they must be hidden.
Also the lights havent gone out...so I know there is still a problem but is it:
1. too high voltage, im not sure and cant find any specs on when the ECU/BCM will turn them lights on if the voltage is too high
2. the 3 pin plug on the back of the alternator - maybe one of them wires has broken down
So I went looking at wiring diagrams
This gives a good overview
The 7.5A ALT-S fuse is fine which I believe is suppose to give the alternator a reference of the battery voltage so the regulator can stop charge
The 10A FR-IG fuse I cant find which is given power when the ignition 2 is switch on
The 7.5A MET fuse which looks like it supplies power to the battery light on the dash, but the dash also takes a feed from the 3rd wire of the alternator
Im a bit lost where to check next.
Any pointers, im pretty machanically & electrically minded so
Another alternator post....or is it?
So driving home the other day probably 45mins into a 1hr journey, gave it some pedel on a straight piece of road which resulted in the battery light and some others coming on
Typical alternator fault, so I went looking at the alternator...no funny noises, seemed to be charging, but when I turned all the accessories on I could smell something was getting hot.
It had melted the output post shroud on the alternator, the battery was now also getting down the 13V with the engine running with minimal accessories on.
So I changed the alternator, no I have 14.7v after start up (after the intake heater cuts out).....which is a bit high for my liking? thoughts?
Seems like good ampage coming out the Alt too...I have been able to measure 90A on high idle, its a 120A so at 2k rpm should be achievable.
It is a non brand, which replaced the previous non brand from Milners (which I am sceptical about now as the original only lasted 13k miles & 11 months).
I should have saved my OEM and reman'd it
So I have checked all fuses, although cant find a few, they must be hidden.
Also the lights havent gone out...so I know there is still a problem but is it:
1. too high voltage, im not sure and cant find any specs on when the ECU/BCM will turn them lights on if the voltage is too high
2. the 3 pin plug on the back of the alternator - maybe one of them wires has broken down
So I went looking at wiring diagrams
This gives a good overview
The 7.5A ALT-S fuse is fine which I believe is suppose to give the alternator a reference of the battery voltage so the regulator can stop charge
The 10A FR-IG fuse I cant find which is given power when the ignition 2 is switch on
The 7.5A MET fuse which looks like it supplies power to the battery light on the dash, but the dash also takes a feed from the 3rd wire of the alternator
Im a bit lost where to check next.
Any pointers, im pretty machanically & electrically minded so