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Any of you welders.....floor pans

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ftn96

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I've got my welder that my dad is giving mre coming and my uncle is dropping 1/8 steal strips and some 16 guage steal sheets to fix my cracked floor pan where the seats mount (90 model). I know I can burn the floor pan up pretty easy on these. How far apart should I put my tacks for the best connectivity?

My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
 
Put your tacks about 1.5" apart all the way around, then keep on tacking til it all fills in. Do not do double tacks in the same place. It will take a while but you'll get the job done w/o warping the sheetmetal. I finished a similar project on my rear bed support.
<A target="_blank" HREF=http://www.pacificnet.net/~waxer/NewShit/>http://www.pacificnet.net/~waxer/NewShit/</A>
 
I thought about that. If I work my way aorund the metal on the other side shopuld be cool enuogh by the time I get back aorund shouldn't it? Or can I use some spray bottle water?
This will also be my first welding experience, this is what the uncle is teaching me on. But its all going to be covered up with insullation and floor mat. It dont gots to be purty, just strong.

My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
 
do NOT use water. By the time you get around to it again it will be more than cool enough.
 
NOT=Water, I take it that is bad? Will that like cuase major temp change problems with the metal?, IE like hot glasses and cold water? I probably just answered my question after sitting here thinking about it.

My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
 
eheheh yes. Using water in a safe fashion is fine and its known as quenching (thanks Mike) but done incorrectly it can seriously weaken the metal just like you described.
 
Right on. Thanx Waxer!

My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
 
Sounds like a safe approach if you got the patients. When I've done stuff like that in the past (piecing quarters, skins, patch panels, etc.) I generally tack it in place with about 2" between tacks. Then, I put a 1/2" stitch next to each tack and work my way around and around. Four circuits and your done. This has worked well for me but the repeated spot will work too as long as you get good penetration. You'll likely have more grinding to do since it will be hard to get a smooth weld and if you don't stick it good it will crack the first time you get twisted up...

Oh, BTW, check with Eastwood, seems like they make a "heat sink putty" that you can bead up and put along side the weld area to prevent most of the heat warping. This is really for thin sheet metal and should not be too bad with the heavier floor material but if you are concerned, check into it.

Bad Dog

85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Locked
Soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
 
Sounds good too. Sounds like that would have amore uniform look to it doing it that way. Like I said, not worried about the smoothness, just the strength. But I like grinders!!! They are fun to play with. Have liked them since the second grade. I think I learned to use them before pencils. LOL!!!

My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
 
It may be obvious but Just a word of caution. make sure there is nothing that can burn inside the cab becasue you will throw sparks. I was grinding at some rust on my floor pan and i caught some insulation in the firewall smoldering. i can just imagine what would of happened if i was welding.
Craig
 
Yep I was "THANKIN" "ABOOT" that too.
Sorry the wife is out of town and Im drinking and typing. Dangerous combo.

My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
<P ID="edit"><FONT SIZE=-1>Edited by ftn96 on 05/23/01 10:04 PM (server time).</FONT></P>
 
Just make sure you don't combine drinking and welding. Now THERE is a bad combination that will get you killed. I'm sure you wouldn't do that but I had to say it just in case. I see too many times where people combine things with drinking that really should not be even considered. I like to have a drink myself but never when driving or working with dangerous equipment...

Bad Dog

85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Locked
Soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
 
10-4 on that. Besides, the beer I drink is almost non-alcoholic. Natural lite. I'll drink while Im working on the Blazer, but find that I always let over half of each one get hot


My president is Steve Fox.
90-350TBI-TCI700-241-33"-10 bolts w/4.10's,
<A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
 
I fixed the cracks in my floor a few months ago....welding did burn through the floor, so we brazed them. I didn't use repair pieces, just fixed the old ones.

90K5

See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
 
oh, and about the burning through the floor... it may happen and if you have undercoating on there it may flame... just watch out for that and be prepared for a flame going under the truck. just my .02 from experience. Laters

Have been stuck (once) as of 8/12/00
 
ok i gotta get in on this too.MAKE SURE YOU DISCONNECT THE BATTERY!!!!the computer in the truck will not like the power surges.your wallet will thank you.there may be mixed thots on this,but ive seen it happen.only once but that was enuff to teach me to disconnct the bat from that point on.fortunately it wasnt me that toasted the computer
smile.gif


PURE INSANITY
86 blazer see it at:<A target="_blank" HREF=http://www.zing.com/album/pictures.html?id=4292792569>http://www.zing.com/album/pictures.html?id=4292792569</A>
 
And ALWAYS keep a fire extinguisher handy if things get out of hand. Check for brake and MOST IMORTANTLY, GAS LINES! Maybe a hose for minor fires where you don't want or need the mess of an extinguisher.

Bad Dog

85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Locked
Soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
 
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