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Old 01-19-2021, 03:37 PM   #1
adileo
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Default MiG help

Hi guys

Little off early Ford but will use on F1.

I am a newby in welding arena. I bought an old/used Lincoln SP-100 (see pic). While practicing on old piece of sheet metal, I ruined the tip. Probably wire feed to slow or too hot...but getting off my need.

I went to Home Depot and bought new Lincoln tips. Only to find when I got home the thread diameter is smaller than my machine. Anyone know where I can find these old style tips?

I went to local welding shop and they said I needed buy all new hose torch setup.
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Old 01-19-2021, 03:42 PM   #2
Kube
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Default Re: MiG help

I'd check ebay, amazon, McMaster-Carr. Do a search with the model number.

There's a ton of stuff available for that model. An entire new gun / hose assembly is cheap. Here's one of many links - this one Amazon.

HITBOX 10 Feet (3m) MIG Welding Gun Torch Stinger 100Amp Replacement for Lincoln Magnum 100L K530-5, MIG Gun and Cable SP-100 100I 100T 125 Plus 130T 135 Plus 135T 140I 170 170T 175Plus 175T
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Old 01-19-2021, 03:50 PM   #3
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Default Re: MiG help

Thanks Mike, I did try eBay and Amazon. But they looked like the same tips I got from Home Depot. I’ll continue the hunt and also look your hit box suggestion.

Stay well!
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Old 01-19-2021, 04:15 PM   #4
Bob C
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Default Re: MiG help

Can you post a picture of what you have?
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Old 01-19-2021, 04:29 PM   #5
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Default Re: MiG help

usually at a real welding store they have enough tip variety's to make your head spin. gotta have model numbers when shopping
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Old 01-19-2021, 04:37 PM   #6
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Quote:
Originally Posted by adileo View Post
Thanks Mike, I did try eBay and Amazon. But they looked like the same tips I got from Home Depot. Iíll continue the hunt and also look your hit box suggestion.

Stay well!
If you buy the entire assembly (about $50) , you get tips. Plus the assembly is now of a more modern design should you need more parts in the future.
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Old 01-19-2021, 04:51 PM   #7
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Quote:
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Can you post a picture of what you have?
Sorry didnít think I would run into this issue, it went in trash

I found manual online, pic had model number of tip I need. However, also read a post itís discontinued and replaced with, kb2011-2b1. However not been able find that either.
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Old 01-19-2021, 04:52 PM   #8
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Quote:
Originally Posted by Kube View Post
If you buy the entire assembly (about $50) , you get tips. Plus the assembly is now of a more modern design should you need more parts in the future.
Agree Mike, Iím leaning that way.
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Old 01-19-2021, 05:07 PM   #9
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Default Re: MiG help

Find your local welding supply. You might be able to change the diffuser to use the current style tips.

If they repair machines, like the place i deal with , they have used parts.
Depending on how old your machine is and if it sat around a long time with wire in it, chances are it needs a liner. A bad liner will cause you more problems then just with tip burn back

Ad that all up you can buy a new gun.
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Old 01-19-2021, 05:22 PM   #10
51 MERC-CT
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Default Re: MiG help

Quote:
Originally Posted by adileo View Post
Hi guys

Little off early Ford but will use on F1.

I am a newby in welding arena. I bought an old/used Lincoln SP-100 (see pic). While practicing on old piece of sheet metal, I ruined the tip. Probably wire feed to slow or too hot...but getting off my need.

I went to Home Depot and bought new Lincoln tips. Only to find when I got home the thread diameter is smaller than my machine. Anyone know where I can find these old style tips?

I went to local welding shop and they said I needed buy all new hose torch setup.
The SP-100 tips have a thread that is 6mm. x1 dia.

Notice that your machine is set up for gas.
Suspect that it was converted to gas from flux and non Lincoln components were used.
This is the standard SP-100 wand.
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Old 01-19-2021, 05:41 PM   #11
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Default Re: MiG help

Quote:
Originally Posted by 51 MERC-CT View Post
The SP-100 tips have a thread that is 6mm. x1 dia.

Notice that your machine is set up for gas.
Suspect that it was converted to gas from flux and non Lincoln components were used.
I has thinking the same thing.
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Old 01-20-2021, 08:00 AM   #12
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Default Re: MiG help

Are you using flux core wire?, also get yourself some nozzle gel, helps the spatter not to stick.
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Old 01-20-2021, 08:29 AM   #13
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Are you using flux core wire?, also get yourself some nozzle gel, helps the spatter not to stick.
Looks like a gas conversion to me not flux-core.
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Old 01-20-2021, 10:22 AM   #14
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If you are using a gas conversion you must make sure the polarity is correct, when I switch from GMAW TO FCAW . The polarity for FCAW welding should be set for D.C. negative electrode, A.K.A DECEN and for GMAW ( Mig ) the polarity should be set for direct current electrode positive A.K.A DECEP or reverse polarity, I Use mostly 75/25 gas for general Mig Welding and 90/8/2 in some cases, depending on what I am welding. The wire and gases I Use depends on what material I am welding ,you can expect a good deal of spatter when using flux core. That torch looks like a Tweco I had , I bought some parts from Harbor freight.

Last edited by Fordestes; 01-20-2021 at 10:31 AM. Reason: spelling
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Old 01-20-2021, 11:10 AM   #15
51 MERC-CT
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Default Re: MiG help

Perhaps a non-technical clarification on switching polarity for gas usage.
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Old 01-20-2021, 11:37 AM   #16
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Default Re: MiG help

I too own an SP100 welder set up with gas, which I’ve owned for 25 years, purchased new. The tips are not threaded into the torch but are off-center. To install they need to be put into the torch and turned one-quarter turn to lock in. My welding supply store indicates these tips are no longer available and I need to buy a new torch with the threaded tips. If anyone knows where to buy the old tips, I’d appreciate knowing where.
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Old 01-20-2021, 12:07 PM   #17
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Default Re: MiG help

SkeevE-bay has new replacement SP100 Torch $44.00 for wire w 10’ connection wires
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Old 01-20-2021, 01:51 PM   #18
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Default Re: MiG help

I had the same issue with my old SP-100; new tips are not compatible with my 20+ year old torch. Spent an hour at my CeeKay welding supply source in St. Louis and they were totally stumped. Could not find an older part number, and none of the old-timers at that store and the other store they called could find something for me. The newer torches use a screw-in tip, and mine has a 1/4-turn camlock effect. There's no obvious camlock feature, though; it just looks like a smooth round bore in brass and a smooth tip. But it really works after a 1/4 turn. I have one decent tip left, and when I bugger that one, I will probably buy a complete replacement torch
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Old 01-20-2021, 02:52 PM   #19
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Default Re: MiG help

Thank guys. I just bought new torch.
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Old 01-20-2021, 02:55 PM   #20
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Default Re: MiG help

Bernard guns use a 1/4 turn tip. But i dont know if they make a gun that small.

In the past i also noticed that the lincoln machines sold at home depot were not the same as the commercial models.
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