Rising Sun Member Forums  

Go Back   Rising Sun Member Forums > Toyota 4x4 > General Tech Forum

Reply
 
Thread Tools
  #1  
Old 04-08-2012, 12:31 AM
nakman's Avatar
nakman nakman is offline
Rising Sun Commander
 
Join Date: Aug 2005
Location: north side
Posts: 10,006
Default welding to vehicles - any special rules?

when arc welding to a motor vehicle, are there any special precautions that should be taken? Like, should the battery(ies) be disconnected? Anything else?

__________________
99 uzj100, 05 525EXC

www.gamiviti.com

Reply With Quote
  #2  
Old 04-08-2012, 08:49 AM
kurtnkegger's Avatar
kurtnkegger kurtnkegger is offline
Rising Sun Member
 
Join Date: Jan 2011
Location: Denver Burbs
Posts: 272
Default

Any time I weld on mine, I A) disconnect the battery, and B) have a fire extenguisher at the ready. Look for spots below where splatter might land and possibly ignite.
Reply With Quote
  #3  
Old 04-08-2012, 09:26 AM
thefatkid thefatkid is offline
Lifted
 
Join Date: Mar 2006
Location: Denver
Posts: 197
Default

I unplug the expensive computers; engine, abs, aftermarket radio equipment. I'll also disconnect the battery. Anything close to the weld spot that is rubber I will lay a wet rag over. I also have a large fire-blanket for larger coverage (don't lay it on paint without a cloth under it though )
__________________
Brian C.
2004 4runner just starting to build
83 Hilux SR5 is being sold
94 pickup in a pile of parts
Reply With Quote
  #4  
Old 04-08-2012, 09:51 AM
Air Randy's Avatar
Air Randy Air Randy is offline
Rising Sun Member
 
Join Date: Aug 2008
Location: Franktown, CO
Posts: 2,804
Default

If you are welding to the frame, make sure you know whats on the other side i.e. fuel lines, wiring harness, etc.
__________________
Randy Rosetta KDKWX TLCA #19351 69 FJ40 "Meanie" & 1970 Boss 302 Mustang
Reply With Quote
  #5  
Old 04-08-2012, 01:21 PM
AxleIke's Avatar
AxleIke AxleIke is offline
Rising Sun Member
 
Join Date: Apr 2006
Location: Arvada, CO
Posts: 3,411
Default

Second all of the above. Although I have never had a stereo worth worrying about, but the ECU gets unplugged, and battery disconnected.

And DOUBLE check the other side, as Randy say's.

Only other advice that I have is that, almost always (though not 100% of the time) electricity will take the shortest path. So, to eliminate issues with electronics in the vehicle, place your grounding clamp as close to your weld area as possible. This will reduce your risk of burning out any unplugged electronics.
__________________
Isaac

Baby Beast 2- 1999 4Runner SR5

Baby Beast -1987 4Runner SR5-Gone, but not forgotten

Generation Dead
Reply With Quote
  #6  
Old 04-08-2012, 02:16 PM
rover67's Avatar
rover67 rover67 is offline
Rising Sun Member
 
Join Date: Nov 2007
Location: Boulder, Co
Posts: 5,390
Default

in addition to the above, make sure there are no rotating parts or any joints between the ground and where you are doing your work. Like worst possible thing to do would be to say ground a lug nut to weld a frame.

Then you'd probably hose everything in between, like wheel bearings, when they all arc while you start the weld.

just ground to the part you are working on.
__________________
Marco Capote
KDGWX
85 FJ60
82 FJ40
Reply With Quote
  #7  
Old 04-08-2012, 11:38 PM
nakman's Avatar
nakman nakman is offline
Rising Sun Commander
 
Join Date: Aug 2005
Location: north side
Posts: 10,006
Default

Good stuff, thanks! Maybe I'll stick to trailers for a while longer... much less prep!


edit: p.s. Randy, I'm getting better at your old welder, my last couple projects actually don't look half bad. I'm worse when I try to stick thin stuff to thick stuff, but when I can join two 3/16" pieces it's pretty sweet.. definitely having fun with this, my favorite sticks are the 6013's.

So far the camper has a new motorcycle carrier and upgraded battery holder, the utility trailer has a new battery holder, upgraded wheel pivot, and some new tie-down spots, my boy's motorcycle got a cut & turn on the handlebars to give him a little more reaching room, and my neighbors ATV plow got fixed this past winter. I think I'm most proud of the ATV plow. Not a bad winter of welding.
__________________
99 uzj100, 05 525EXC

www.gamiviti.com

Reply With Quote
  #8  
Old 04-09-2012, 08:56 AM
Beater's Avatar
Beater Beater is offline
Hard Core 4+
 
Join Date: Dec 2005
Location: denver
Posts: 2,781
Default

welding blankets are not cheap, but indispensable
__________________
a near-death experience is just god following "catch and release" regulations...


john (johnny) henley
Reply With Quote
  #9  
Old 04-09-2012, 09:48 AM
Air Randy's Avatar
Air Randy Air Randy is offline
Rising Sun Member
 
Join Date: Aug 2008
Location: Franktown, CO
Posts: 2,804
Default

6013 is anice all around welding rod, easy to use for just about anything. You can get it in different rod sizes too. If you get the smaller diameter stuff it will make welding the thinner material easier.

You're on the slippery slope for sure, next on your list will be a mig unit
__________________
Randy Rosetta KDKWX TLCA #19351 69 FJ40 "Meanie" & 1970 Boss 302 Mustang
Reply With Quote
  #10  
Old 04-09-2012, 11:20 AM
Red_Chili's Avatar
Red_Chili Red_Chili is offline
Hard Core 4+
 
Join Date: Aug 2005
Location: Littleton CO
Posts: 8,409
Default

I've welded repeatedly to the Chili and others with no concern for the ECM. I would NOT disconnect the battery... it acts as a clamping device. Think, capacitor. Shunts spikes to some degree. We are dealing with low voltages, but much current/ inductance. Operate accordingly.

Ground very close to your work and make sure you know what is near the welding location. Do NOT drape welding cables over anything, induction is real.

YMMV.
__________________
-Bill Morgan
Heb Dduw, heb ddim; Duw a digon
Abnormally aspirated
KDRCH
Bio Page
I'm that gun-totin', farm-raised, evangelical, pro-environment, OHV ridin'/drivin', Southern civil rights pro-labor Liberal yo' momma told you couldn't possibly exist.
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 04:14 PM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.