welding in new floor, remove gas tank?
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Joined: Aug 2011
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From: Tunkhannock PA
Year: 99
Model: Cherokee
Engine: 4L
Im welding in new driver side from pedals to rear fender edge. Oddly the rest of floor is as good as new, prevous ownerr tried to patch driver side by slapping down a piece of sheetmetal and bondo over it, trapped moisture in between old floor and that metal rotting it out.
Would you remove gas tank before welding? I wont be going past front of rear fender.
Would you remove gas tank before welding? I wont be going past front of rear fender.
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Joined: Sep 2009
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From: Williston, North Dakota
Year: 1999
Model: Cherokee
Engine: 4.0L
Front of the rear fender, you'll be fine in that case (not near the gas tank), but be careful about burning through, the brake/fuel lines are on the drivers side frame rail, right below where you're welding.
P.S. Just for reference I did the same thing you're planning on doing, didn't remove the tank, no issues. The only time I hear about people removing the tank is for welding in the cargo area.
P.S. Just for reference I did the same thing you're planning on doing, didn't remove the tank, no issues. The only time I hear about people removing the tank is for welding in the cargo area.
Last edited by Dan91; Mar 15, 2012 at 09:44 PM.
CF Veteran
Joined: Nov 2011
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From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Originally Posted by bnkk
Im welding in new driver side from pedals to rear fender edge. Oddly the rest of floor is as good as new, prevous ownerr tried to patch driver side by slapping down a piece of sheetmetal and bondo over it, trapped moisture in between old floor and that metal rotting it out.
Would you remove gas tank before welding? I wont be going past front of rear fender.
Would you remove gas tank before welding? I wont be going past front of rear fender.
CF Veteran
Joined: Jun 2011
Posts: 2,460
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From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
Originally Posted by Dan91
Front of the rear fender, you'll be fine in that case (not near the gas tank), but be careful about burning through, the brake/fuel lines are on the drivers side frame rail, right below where you're welding.
P.S. Just for reference I did the same thing you're planning on doing, didn't remove the tank, no issues. The only time I hear about people removing the tank is for welding in the cargo area.
P.S. Just for reference I did the same thing you're planning on doing, didn't remove the tank, no issues. The only time I hear about people removing the tank is for welding in the cargo area.
Thread Starter
Seasoned Member
Joined: Aug 2011
Posts: 349
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From: Tunkhannock PA
Year: 99
Model: Cherokee
Engine: 4L
I was going to put some metal over lines to cover them. Maybe i should get a welding tarp and cover rear area underneath. I would think take out but wonder if open lines would be worse then sealed tank.
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Joined: Nov 2009
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From: Boulder, CO
Year: 1999
Model: Cherokee
Engine: 4.0L I6
I would drop the lines down a bit and cover them with a welding blanket, along with any other wires or plastic bits that may melt or catch fire. Undercoat is pretty good at catching fire when welding so have a wet rag near by.
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From: Lehigh Valley, Pennsylvania
Year: 1999
Model: Cherokee
Engine: 4.0 stroked to 4.6, Thanks to Teasdale'sMachine!
Originally Posted by Dan91
Front of the rear fender, you'll be fine in that case (not near the gas tank), but be careful about burning through, the brake/fuel lines are on the drivers side frame rail, right below where you're welding.
P.S. Just for reference I did the same thing you're planning on doing, didn't remove the tank, no issues. The only time I hear about people removing the tank is for welding in the cargo area.
P.S. Just for reference I did the same thing you're planning on doing, didn't remove the tank, no issues. The only time I hear about people removing the tank is for welding in the cargo area.

If you look in upper left you can see where I moved seat back 2".
Thread Starter
Seasoned Member
Joined: Aug 2011
Posts: 349
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From: Tunkhannock PA
Year: 99
Model: Cherokee
Engine: 4L
thanks guys i started today good except in thin areas im blowing through a little but im goona weld some L-brackets i made at work on and then rivet those areas.
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From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Originally Posted by bnkk
At min but im going to try not putting a bead and just tac it and come back around tac it again until i get it done
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