Any welding advice. Don't want to fry electrics.

[danielj]

Have not done a lot of welding but I need to weld new brackets for rear drop links onto chassis . I'm sure battery should be disconnected. I'm sure I read somewhere to also disconnect the alternator. Anything else that needs to be done to avoid frying the electrics or ecu?

 

[jims-terrano]

I always disconnect earth from the battery. I have heard people advise to disconnect the alternator and as you say the ecu but I have never done this and no problems so far. I have occasionally forgotten to disconnect the battery and not had a problem as well but I don’t want to make a habit of that.

 

[Lazy-Ferret]

I am by no means an expert, but on the welding I have had done recently on my 2 cars, some by me, and some by a professional, all we did was disconnect the batteries.

My car has a lot of electronics in it, and everything survived.

 

[terranosaurusdoug]

Yup, I usually try and disconnect the batt but like Jim don't always remember, I haven't experienced any issues but I will still continue to disconnect the batt :thumb2

 

[solarman216]

The main issue is keep the earth very close to the weld point, I do not disconnect anything prior to welding, but would if earth clamp was at front and weld point was at rear, Rick

 

[danielj]

Thanks for all the advice. Will disconnect battery and attach clamp close to where welding on the chassis.