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Thread: MIG Welder problems

  1. #1
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    MIG Welder problems

    My MIG welder was playing up last time I used it, intermittent wire speed.

    I purchased it in the UK (I've been out here for 21 years now) so it must be about 30 years old. Cost about 350GBP at the time.
    Never got used that much until the beginning of this year when I was working on modifying a car trailer.

    I stripped the feed unit down today and found the grease in a couple of bearings was congealed. Then found that there is a lot of friction between the plastic spool and the mounting, added some lube as a temporary measure. Seems better, the wire feed has always been noisy. I've never changed the liner for the wire so maybe that should be next on the list.
    Can you buy the wire feed module for an antique like this ?
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    p38arover's Avatar
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    It's unlikely BOC ever brought that model into Oz. Were they in Oz back then? I doubt it.

    Ask Toxic Avenger, he's got a lot more expertise on this sort of stuff.
    Ron B.
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    It’s in bloody good condition for 30years...

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    Not sure if the liner on that is replaceable, but you should be able to get a suitable whole torch and cable kit that could be fitted.

    As mentioned, Toxic would have a lot better idea.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    As you said, if you have never changed the liner I'd be looking at that. I would at the least pull it out and check its condition. Its probably rusty inside if it is the wire wound type after all these years.
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    Quote Originally Posted by Homestar View Post
    Not sure if the liner on that is replaceable, but you should be able to get a suitable whole torch and cable kit that could be fitted.

    As mentioned, Toxic would have a lot better idea.
    Might be an option.


    Quote Originally Posted by FisherX View Post
    As you said, if you have never changed the liner I'd be looking at that. I would at the least pull it out and check its condition. Its probably rusty inside if it is the wire wound type after all these years.
    Looked like it was nylon, I'll take the torch apart and see how easy it is to remove. The wire feed end was simple.....


    It's always been noisy when feeding the wire, no matter how much tension you put on the wire feeder it slips sometimes. I did wonder if the groove in the wire feeder has worn.
    Running better since greasing the bearings, I'll check the liner next.

    Thanks,

    Colin
    '56 Series 1 with homemade welder
    '65 Series IIa Dormobile
    '70 SIIa GS
    '76 SIII 88" (Isuzu C240)
    '81 SIII FFR
    '95 Defender Tanami
    '58 Series II (sold)
    Motorcycles :-
    Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C

  7. #7
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    If you’ve taken a peak and think the liner will come out, should be a simple fix. 👍
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    Quote Originally Posted by p38arover View Post
    It's unlikely BOC ever brought that model into Oz. Were they in Oz back then? I doubt it.

    Ask Toxic Avenger, he's got a lot more expertise on this sort of stuff.
    Ron, BOC were here under the name CIG, Commonwealth Industrial Gases. They may have sold welding supplies to Captains Cook and Phillip.
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    Quote Originally Posted by Bigbjorn View Post
    Ron, BOC were here under the name CIG, Commonwealth Industrial Gases. They may have sold welding supplies to Captains Cook and Phillip.
    Yes, I used to buy from CIG. I thought BOC bought them out. Is that not the case?

    EDIT: BOC formed CIG in 1935. One learns something every day.
    Last edited by p38arover; 16th December 2018 at 06:28 PM.
    Ron B.
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  10. #10
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    Looks almost identical to my 130amp CIG mig right down to the plastic tensioner.
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