Lincoln MIG Gun - gas nozzle stuck

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I am having a tough time removing the copper gas nozzle. When I turn it, the whole tip assembly want to come off. Is the nozzle left hand threads by chance?Lee TiltonSCCA F500 Pilot
Reply:a lot of the lincolns are just pushed on.miller thunderbolt 250vlincoln square wave tig 175 prolincoln idealarc mig sp250everlast tig 210EXTeverlast power plasma 50chicago electric (hf) 130 tig/90 arcchicago electric 90 amp flux wire3 sets oxy/acet
Reply:Originally Posted by boatbuoya lot of the lincolns are just pushed on.
Reply:That's happened to me before too, no biggie. I have a Lincoln 140c mig and when cleaning the gun I had the nozzle stick to the assembly real good and after messing with it for a bit I finally unscrewed the nozzle and assembly together as a unit then separated them on my work bench. After wire brushing everything I put the tip assembly on snugged with a wrench and the nozzle went on hand tight. That was maybe 5-6 months ago and I haven't had any problems since, just dont crank your nozzle on with the mig pliers anymore hand tight works just fine. Hope this helps.Lincoln 140cLincoln ac225
Reply:On my Lincoln 180c the nozzle screws on with a standard right hand thread. That's both Gas and Flux. Lincoln designed the nozzles to not fall off like press fit styles. Do as Heysparky advised; unscrew the entire assembly and separate at your workbench. Remember, hand tighten only, it's an unetressed member. Fresh nozzles (gas & flux) are readily available wherever Lincoln welding goods are sold (HD, Lows, LWS, etc).If the threads are a little rough, chase them, you should be good 'til the end of time!  When a welder tells you to "stick it", what do they really mean?"In a time of universal deceit, telling the truth is a revolutionary act." - George Orwell
Reply:Most likely you diffuser was not firmly seated in the end of the gooseneck.You may also have had some grit on the threads of the diffuser and the combination of the two has locked the nozzle onto the diffuser.If this is a Magnum 100 style gun just unscrew the diffuser and grab ahold of it to unscrew the nozzle.Everything is right hand thread.
Reply:Screw the gas nozzle off. Gently grip the threads on the diffuser with mig pliers and twist it off.  It happens from time to time.  Nothing to be concerned about.Enough stuff to build and repair wrinkled up race cars or bring a classic back to life...
Reply:Thanks everyone!Lee TiltonSCCA F500 Pilot
Reply:Just to close this out: I'm not sure how this happened, but the nozzle was practically fused onto the diffuser. Even after using PB Blaster, they would not separate. I had to put the threads of the diffuser in a vise, effectively crushing it, in order to separate the two. New diffusers are on the way.Lee TiltonSCCA F500 Pilot
Reply:Lots of heat cycles can raise Heck with threads........  Miller Dynasty 350Twenty Six HammersThree Crow BarsBig Rock