Hello,
usually the voltage gauge is on 14V.
the problem is that sometimes (when driving on freeway for 30 minutes or so) it goes up to 14.5 or 14.8
isn't it too high ?
what could be the problem ? Do I have to be worried ?
thanks

 

Measure with a more accurate digital meter at the B+ terminal at the alternator or the B+ terminal on the battery . Different opinions on the Max of 14.5 volts . Voltage regulator part # IN435

https://www.ebay.com/itm/NEW-QUALITY...xYAYV7&vxp=mtr

 

ok here is.
Voltmeter inside car shows 14.3 right now and testing with a Fluke professional multimeter it shows 14.51
I guess when in the car it goes to 14.5 then it must be something like 14.8
Looks too high for me.
What kind of damage can I have ?
can I Still drive the car for a while ?
And most important thing, is it difficult to replace the voltage regulator ?
thanks

 

Too high voltage will cook the battery and shorten the service life . 14.8 V in my opinion is not a no go item but will cost you battery life not to mention possible electronics . Alternator should be removed from car to replace the regulator unless you are very crafty . The brushes and the rest of the Alternator is very robust but the one brush screw ( under the Z letter in the pic ) may be fused on ( no socket wall clearance ) so might as well order new brushes . When you get done rebuilding it you can take it to the auto parts store and they will spin it up before you install a possible bad out of stock regulator . Did that many times on airliners and they are very heavy on the back .

See the links , links :

https://www.jaguarforums.com/forum/x...emoval-193051/

 

1. None
2. Yes
3. Very easy, just time consuming

I wouldn't worry much about it, mine is doing the same thing occasionally and the battery must be ~8-10 years old now and its still fine. If you don't mind throwing time and little money at it then yes, change it, otherwise its not a massive problem.

 

Here is my Battery Gauge, reading same as yours.


My battery is three and a half years' old, and seems working properly. I do not think you need to worry as long as the needle is far away from the red zone, and there are no other abnormal symptoms.