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  1. #1
    Veteran Member DUMBDOG's Avatar
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    Default Grease Zerk Removal

    Last year a three point arm came off and broke off a grease zerk with no way to grab the threads.

    How does one remove the threads to install a new zerk?

  2. #2
    Silver Member
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    Dec 2005
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    Fredericksburg, Tx
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    Kubota L3400 HST

    Default Re: Grease Zerk Removal

    There is a tool called and easy out that you insert in the hole and twist counter-clockwise. The edges are sharp and 'bite" into broken piece. The local auto supply should be able to help you. You may try to use a small phillips screw driver. If you can jam it in the hole you may be able to un-screw the fitting. Good luck.

  3. #3

    Join Date
    Nov 2005
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    Northwest CT
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    Kubota L5030HST

    Default Re: Grease Zerk Removal

    DD -

    An EZ-out is probably your best (only?) bet. I think you'll have a pretty good chance of success since it's unlikely that the threads are rusty. Just in case, might as well spray some penetrating oil on it ASAP to get things loosening up - I really like Aerokroil and PB Blaster, in that order.

    You might have to drill the zerk out a little to use a beefy enough EZ-out - the last thing you want to do is break one off inside the zerk. Then you really would be in a jam. [img]/forums/images/graemlins/tongue.gif[/img]

    Good luck, John

  4. #4
    Veteran Member
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    Kansas
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    2003 BX2200

    Default Re: Grease Zerk Removal

    I've had good luck putting small ez outs in a cordless drill. Put a lot of pressure on the drill and something like a zerk should spin right out. Shouldn't even need to drill it first.

    ron

  5. #5
    Silver Member
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    Nov 2004
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    Chattanooga, TN area.
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    Kubota L3130 and Kubota ZD21

    Default Re: Grease Zerk Removal

    You can also use an old square nail. Insert it into the broken zerk and LIGHTLY tap it in a little with a small hammer. Then take a small adjustable wrench and turn it until the broken zerk screws out. I have done this when my easy out was not available. Hope this help's.

    Curt

  6. #6
    Super Member
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    Sep 2000
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    6,595

    Default Re: Grease Zerk Removal

    There are two main types of ez-outs. One type is shaped like a big flute drill bit. The other is square. The square seems to work better on really stuck things and can be tapped (hammered) in solidly. The other type can be had in smaller sizes. I have broken more of the big flute type... especially the small ones.

    If you have to drill it out, buy a left hand thread bit. The heat and vibration often loosens up the stuck part getting it to unscrew.

    jb

  7. #7
    Epic Contributor Soundguy's Avatar
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    Default Re: Grease Zerk Removal

    Yep.. easy out, zerk removal tool, left hand drill bit.. Heck.. I'd driven a flat blad screw driver into the reminants of one then turned that out with vice-grips..

    Soundguy

  8. #8
    Super Member scott_vt's Avatar
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    east wells,vt
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    1986 MF 1040, 1942 Farmall A, 1949 Farmall Super A

    Default Re: Grease Zerk Removal

    DD,
    All are good answers, just one more idea for you. Get a small lefthand drill, something in size larger than the thru hole but not larger than the threads on the OD of the zerk. This can also work. [img]/forums/images/graemlins/grin.gif[/img]

    scotty


  9. #9
    Veteran Member DUMBDOG's Avatar
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    Default Re: Grease Zerk Removal

    Thanks for all the suggestions. Figured the easy out was the way to go, but would ask anyway, will try a couple of the others first.

    Thanks again.

  10. #10
    Veteran Member
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    Olathe, Ks
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    Yanmar 1602D

    Default Re: Grease Zerk Removal

    In a pinch, I've used the end of a flat file, tapped into the fitting, and a crescent wrench to turn it out, same principal as the square nail. I find it works particularly well on a brass fitting in an aluminum part. When you use an easy out in those circumstances, the easy out tends to expand the thing you're tyring to remove, making it stuck worse!

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