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Barrel nut on shift linkage siezed

Discussion in 'Boats, Blinds, & Gadgets Forum' started by Tystix, Mar 17, 2019.

  1. Tystix

    Tystix Senior Refuge Member

    Messages:
    874
    Joined:
    Jun 28, 2011
    Location:
    Springfield, Oregon
    Tried to drop my lower unit on my 9.9 Yamaha and I couldn't get the barrel nut on the shift linkage to move. I could get the lower lock nut to spin but not the barrel nut. Just felt like it was going to shear off if I tried any harder. Sprayed with some teflon gel lubricant hoping it's just rust.
    Any other thoughts?
     
  2. 30# MERGANSER

    30# MERGANSER Senior Refuge Member

    Messages:
    124
    Joined:
    Oct 14, 2001
    Location:
    CENTRAL ILL.
    Heat; use a propane torch to heat it up that should do the trick
     
  3. Tailfeathers

    Tailfeathers Elite Refuge Member

    Messages:
    14,418
    Joined:
    Apr 12, 2001
    Location:
    Virginia
    If heat doesn't work, use heat and ice. Heat both bolt(male) and nut (female) to expand both. Then hit the bolt/male with ice to contract it. Also soak with transmission fluid a few times and let sit overnight, then do the process above.
     
    Tystix likes this.
  4. Tuleman

    Tuleman Elite Refuge Member

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    6,664
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    Feb 5, 2005
    Location:
    Central Kansas
    KROIL is your best friend.
     
    callinfowl and Tystix like this.
  5. callinfowl

    callinfowl Kalifornia Forum

    Messages:
    27,205
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    Aug 15, 2004
    Location:
    NORKAL
    This!!!
    I used Kroil on 80 yr old 12'' mechanical flanges on steam lines to break the nuts free. It works better than anything else that I have tried, period!!!
    Shock it a few times by hitting it with a brass hammer then heat up the nut. While it's still hot hit with a bunch of Kroil, then wrap a small piece of shop towel around it the best you can and saturate it with more Kroil. Allow it sit for a day or two, hitting it with more spray as often as you think about it. If that doesn't work it ain't coming apart without a grinder. :reader:tu
     
    Last edited: Mar 29, 2019

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