Today was the MoT on my 2020 Dacia Logan 1 litre petrol. I had checked the lights yesterday but on the test they found one dip headlamp bulb blown. The tester replaced it with a new one I had in the boot but it blew again 5 minutes later. When I got home I checked the battery voltage with the engine running and it was very erratic, sometimes hitting 17 volts. I see you can buy new voltage regulators for some alternators and I have seen a couple of YouTube videos on alternator repairs. One mentioned that you need silver solder to renew the connections. I have a soldering iron and a gun but have only used normal electronics type cored solder. will my tools get hot enough for silver solder (assuming I can buy some)?
Alternator Repair
- Thread starter fidom
- Start date
No, not hot enough.
Do not go there.
Before anything else, check all of the connections to the alternator and the battery and the ground lead(s) to the vehicle chassis.
Then if the alternator is indeed bust, buy a new alternator and a new battery to go with it.
Even if you could replace the regulator, that may not be the problem. The new one could be destroyed in seconds along with other electronics in the vehicle.
Normal electronic cored solder is fine but you'll need an iron of 125W or more if you have to get stuck in.
Personally I'd go for a guaranteed replacement unit, but do make sure that you can shift the pulley by yourself - particularly if it's a free wheeling one.
John
Personally I'd go for a guaranteed replacement unit, but do make sure that you can shift the pulley by yourself - particularly if it's a free wheeling one.
John