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Looking for some ideas on a none charging issue on a M13A engine.
In ignition position two the battery charge light is on, once the engine is running the light goes out and remains so.. .However the vehicle if left to normal on road running it will eventually flatten the battery. Using a multimeter a fully charged battery voltage is indicated, however this does not increase/change when RPM is increased ( I would be typically looking for 14.1 plus volts ).
I have fitted a new alternator and since the battery was eight years old I have also fitted a new battery, still no charging the battery remains at basic voltage I have obviously looked for bad connections etc but nothing visible.
Looking for some ideas on a none charging issue on a M13A engine.
In ignition position two the battery charge light is on, once the engine is running the light goes out and remains so.. .However the vehicle if left to normal on road running it will eventually flatten the battery. Using a multimeter a fully charged battery voltage is indicated, however this does not increase/change when RPM is increased ( I would be typically looking for 14.1 plus volts ).
I have fitted a new alternator and since the battery was eight years old I have also fitted a new battery, still no charging the battery remains at basic voltage I have obviously looked for bad connections etc but nothing visible.
Any ideas would be much appreciated
Dave
Just a quick one - a thought that is coming from personal and humiliating experience -. Is the alternator belt tight enough.
I fit a voltmeter to all my motors because a good few times I have had almost precisely what the OP describes. I even had a mechanic check the system over and he said a naff alternator which I took to an alternator man. He looked at it and said right off "I guarantee I know what this is and it won't be the alternator". He tested it thoroughly however and said it was working perfectly. Look for a shiny pulley, a slipping belt polishes it nicely.
Thanks all for your suggestions so far, most of them I have all ready tried however its always worth going over them again.
The one that has got me going a bit is Jazz's suggestion of "checking the fuse". I assume you mean the 80 amp fuse hidden away under the engine bay fuse box.which looks a less than easy to get at. Surely if that's blown there will be no electrical power throughout the vehicle.
That said I read on another forum somebody referred to the fact that if it had failed the alternator won't charge the battery but he does not say the whole system is dead. Suppose I will have to have a dig under that can of wiring/worms.
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