What is a miller big 40 worth?

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So I just started pipe welding and I think this will become a regular part of buisness. Nothing big, just well pipes and irrigation stuff.         So I found a 1985 miller big 40 for $1000. It is pretty basic and has got the 4 cylinder continental engine, with no more than 1200 hours on it. What's it worth? Is it a reliable machine? What should I look for when looking at it? Thanks in advance -Jordan
Reply:That's a good deal. Make sure to check it out and weld with it a few hours before handing over the cash. Those are very reliable machines. It's worth is dependant on your location. If it runs and looks good about 2200 up here. Keep in mind I'm in the boondocks.Arcon Workhorse 300MSPowcon 400SMTPowcon SM400 x 2Powcon SM3001968 SA200 Redface1978 SA250 DieselMiller Super 32P FeederPre 1927 American 14" High Duty LatheK&T Milwaukee 2H Horizontal MillBryan
Reply:A 1985 big 40 put out about 300 amps @60% duty cycle has a 3,000 watt A/C power ,arc characteristics  I don,t know as I have never used one . If it runs and welds in all ranges  it is probably a good deal, some listed on machinery trader for $3,000 up , the engine is bullet proof but parts are getting hard to come by. gxbxc
Reply:I had one, a Big 40 Diesel, and a Big 20 gas,(Continental) ,both were great working machines and easy on fuel.. Millers of that vintage are alternators (converted to DC), Lincolns are generators.