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Old 12/11/12, 10:53 AM   #1
JohnJohn
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map gas vs oxy-acetylene

I am piecing together an oxy-acetylene torch but I don't have the tanks yet.

I need to bend one of my twin sticks that is made out of 1/2 thick round steel.
Can a yellow map gas tank heat it up enough to bend or should I just put the stick in my bench vice and put my floor jack tube over it and pull?

77 Ranger 5 year frame off nut and bolt restoration by me with EFI, 4.11s, Cage 3.5" lift 2" body lift, MTZ 35s on 17" Allied Monster Beadlocks, Duff Long Arms, BC TRO, Kiser Riser, Protofab bumpers, Warn winch. 1970 Trail rig with 33's, long arms, 302, 3 speed manual, AKA the Skunk.
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Old 12/11/12, 11:18 AM   #2
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I bent mine in the vise, it didn't take much to bend it. You certainly wont need heat.

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Old 12/11/12, 11:20 AM   #3
70_Steve
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Quote:
Originally Posted by JohnJohn View Post
I am piecing together an oxy-acetylene torch but I don't have the tanks yet.

I need to bend one of my twin sticks that is made out of 1/2 thick round steel.
Can a yellow map gas tank heat it up enough to bend or should I just put the stick in my bench vice and put my floor jack tube over it and pull?
Yes either way. I suspect you don't have to bend the shift lever much. So, it really doesn't need the heat. But if you did heat it, you might notice it bends easier. The MAPP gas would probably get it hot enough.

I bent my Hurst 3-speed shifter using MAPP gas. I don't think it ever got red, but it bent where I heated it.

It scares me that you're "piecing together" a blue tip wrench...

'70 Sport, 351W EFI, NV4500, D20 w/Teralows, 4.56s Dana 44 w/Ox and 9" 31 spline Detroit, 35" KM2's, 3 1/2" lift, 2" body lift, 4x4x2 PS, some other stuff I forgot about...

"If it's got tits or tires it's gonna be a problem"
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Old 12/11/12, 11:28 AM   #4
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Thanks guys. I will just try to bend it. I all ready shortened it and welded it back together but it is just a hair off from the other shifter.

I bought a oxy-acetylene torch kit from Lowes last year but just don't want to buy the $600 in tanks and the $100 cart just yet.

77 Ranger 5 year frame off nut and bolt restoration by me with EFI, 4.11s, Cage 3.5" lift 2" body lift, MTZ 35s on 17" Allied Monster Beadlocks, Duff Long Arms, BC TRO, Kiser Riser, Protofab bumpers, Warn winch. 1970 Trail rig with 33's, long arms, 302, 3 speed manual, AKA the Skunk.
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Old 12/11/12, 11:44 AM   #5
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Quote:
Originally Posted by JohnJohn View Post
Thanks guys. I will just try to bend it. I all ready shortened it and welded it back together but it is just a hair off from the other shifter.

I bought a oxy-acetylene torch kit from Lowes last year but just don't want to buy the $600 in tanks and the $100 cart just yet.
Just as an aside...my company has something like a dozen different gas bottles and we own not one; we found leasing to be more cost-effective and convenient than owning; if you own your tanks and intend to keep the ones you bought, you can't simply exchange them for full when empty. If you do go ahead and willingly exchange tanks you "own" for full ones, then you need to look at the payback period for the rent-vs-buy costs.

And then there are the periodic certs to deal with..and it was those as much as anything that prompted us to go all-leased about 15 years ago.

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Old 12/11/12, 11:47 AM   #6
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A MAP-Pro torch should be able to get hot enough. I've brazed steel with it, but it will take a little while to get the part glowing red. You'll get more BTU out of a larger torch head, so get the larger version.

On a side note, MAPP gas is no longer produced. The stuff in the the yellow bottles is MAP-Pro, which is just propylene. Propylene is a little hotter than propane, but not much. If you're shopping for a torch that puts out significantly more heat than a standard propane torch, skip the MAP-Pro, spend a few extra dollars and buy a small oxy / fuel gas kit.

Rust is just a form of weight reduction....right?
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Old 12/11/12, 11:49 AM   #7
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I don't (and won't) own a torch setup. They can be dangerous if someone uses it without knowing how. They also will leave nothing left in the event of a shop fire. So far, I have been able to do everything I've needed to with a grinder/plasma/map torch.

That said, the MAP will get it plenty hot enough to bend.
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Old 12/11/12, 12:10 PM   #8
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I used MAP gas on mine. Takes a good 5 min to get hot enough but will go bright red all the way through...

But as others have said, now I bend with no heat and instead use my 12 ton press....

1966 Wagon, 302, nv3550, teralow gears, D44 w/E-locker, 9" w/truetrac, 2.5" susp, bilstein 7100's, 33x12.5, x4 disc brakes.
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Old 12/11/12, 01:47 PM   #9
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Thanks for the reminder Anthony. I have a 12 ton press in the corner of my garage that I total forgot about.

Fire is always more fun but I guess I will stick with the press this time.

77 Ranger 5 year frame off nut and bolt restoration by me with EFI, 4.11s, Cage 3.5" lift 2" body lift, MTZ 35s on 17" Allied Monster Beadlocks, Duff Long Arms, BC TRO, Kiser Riser, Protofab bumpers, Warn winch. 1970 Trail rig with 33's, long arms, 302, 3 speed manual, AKA the Skunk.
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Old 12/11/12, 05:01 PM   #10
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Have you cked out home depot for buying Oxy Acetlyne bottles. I have two sets of bottles at my house (out side) and I use them frequently. I also take them on most of the outings, along with a MIG welder and a Bobcat welder to power the Mig. Like said they can be dangerous, but they make life easy.

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Old 12/11/12, 05:21 PM   #11
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Map gas with the right torch head will do it. you can bend it without heat but if you want a nice clean tight bend heat it cherry red and it will look bettter.

71, 393 roller cam EFI, 700R4, D44, F9, ARB front and rear, on board air, Twin Stick, Cruise Control, P255/85/16 BFG M/T, Custom Plate Bumpers, spare tire carrier, custom floor, 2 inch susp, 2 inch body lift, Blah, Blah, Blah.
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Old 12/11/12, 06:03 PM   #12
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I always use the quick trigger/map gas setup I got from lowes to bend twin sticks and similar metal stock. Works good!

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77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,front4.56/Electrac,rear4.56Posi,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked,chromos and 33"MT's"Fat Bottom Girl"

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