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Welding advice
swanny - 8/4/10 at 07:59 AM

Hello chaps
i have a bit of welding to do on the chassis and wanted to run something by you to see if you think it will cause a problem.

i seem to remember from somewhere that if you weld the chassis while the alternator is connected it can knacker it. is this true or is it just some daft wives tale i've picked up?

regards

paul

turbodisplay - 8/4/10 at 08:09 AM

It is possible but very unlikely.
Best bet is to remove the -ve lead from battery,protects all the eus from damage (again unlikely but possible)

Darren

tegwin - 8/4/10 at 08:14 AM

I tend to pull the battery off and the main ECU... but I know a lot f garages dont bother....

nick205 - 8/4/10 at 08:36 AM

For the sake of disconneting the battery don't leave it to chance.

swanny - 8/4/10 at 09:51 AM

brilliant thanks.
battery is off at the minute as its on charge so i'll get cracking!

paul

Mark Allanson - 8/4/10 at 11:44 AM

quote:
Originally posted by tegwin
I tend to pull the battery off and the main ECU... but I know a lot f garages dont bother....


Most have an electronic damper gismo thing which clamps over the battery terminals to protect everything. You can cause loads of damage to modern cars just by disconnecting the battery. Audi A3/TT's have a really nasty habit of blowing the instrument cluster, which at £600 can lower the margin on a job!

StrikerChris - 8/4/10 at 02:07 PM

it is unlikely but it can happen.my advice is never weld a renault.i did a couple of pints worth patch on one having disconnected the battery and alternator and it cost me £140 and 2 days grief for some board i fried in the process,and that was a mate doing me a favour,would have been alot more otherwise.one of those days i should of stayed in bed....