1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Bolts welded on?

Discussion in 'Technical Chat' started by Stryker20000, Dec 11, 2018.

  1. Dec 11, 2018 at 2:29 PM
    #1
    Stryker20000

    Stryker20000 [OP] New Member

    Joined:
    Dec 11, 2018
    Member:
    #275551
    Messages:
    4
    This is my first time on this site, so hello all.

    I have a difficulty with my used truck. I picked up a used 2000 Tacoma and love it, yet have a check engine light that has stopped me from registering it for the past 3 months almost and I need to replace my downstream O/2 sensor. I have the part but for what I can tell some genius welded on the nuts. I have a dremel finally and tried for a bit to get it to cut off some of it, but for what I can tell the whole nut is welded onto the sensors plate. Does any one have any suggestions on how I can get the bolts off, replaced an on my way?

    I did some digging around here and mabye the easiest way is to cut off the bolts, put new bolts in with it attached on the inside of the pipe and go from there to install the sensor. Would that work or will that just cause problems? Other than just dremeling and hoping that I dont mess up the threading, I dont know what else I could do.

    Any help would be greatly appreciated as this is my dream truck that I finally got two years ago about now. I also have a question. Is this common practice for a dealer to do this or just a genius move on some one else's part?

    IMG_2050.jpg
    IMG_2048.jpg
     
  2. Dec 11, 2018 at 2:32 PM
    #2
    koditten

    koditten Well-Known Member

    Joined:
    Sep 8, 2013
    Member:
    #112077
    Messages:
    13,915
    Gender:
    Male
    First Name:
    Kirk
    Central Michigan
    Vehicle:
    04 trd x-cab 4 x 4 3.4l
    Reserected from the dead.
    It's not welded, just rusted.

    Heat them red hot and you can remove the nuts with a pair of channel lock players.

    Clean the exposed threads with a wire brush.

    I've changed out 4 that looked exactly like that using the heat method.
     
    Mully and m603holden like this.
  3. Dec 11, 2018 at 2:35 PM
    #3
    Mully

    Mully Well-Known Member

    Joined:
    Feb 12, 2014
    Member:
    #122907
    Messages:
    4,409
    Gender:
    Male
    First Name:
    Chris
    CA
    Vehicle:
    12 DC 4x4 Lifted Sport
    Lifted, King Shocks, TC UCA, Full set of Skids, Pirrelli's, Air-bags, ARB locker, BAMF hangers and more +++.
    They dont look welded to me, just rusted. This above says it all.
     
  4. Dec 11, 2018 at 2:46 PM
    #4
    Stryker20000

    Stryker20000 [OP] New Member

    Joined:
    Dec 11, 2018
    Member:
    #275551
    Messages:
    4
    Really... Shows how much I know hehe. Thank you for pointing that out. What could I use to heat them up?
     
  5. Dec 11, 2018 at 2:50 PM
    #5
    koditten

    koditten Well-Known Member

    Joined:
    Sep 8, 2013
    Member:
    #112077
    Messages:
    13,915
    Gender:
    Male
    First Name:
    Kirk
    Central Michigan
    Vehicle:
    04 trd x-cab 4 x 4 3.4l
    Reserected from the dead.
    hand held propane torch is what I use.

    I like the ones that you can adjust the flame. You can dial it down so only the flame hits the nuts and not the underside of the truck or near by wires.
     
  6. Dec 11, 2018 at 3:32 PM
    #6
    Stryker20000

    Stryker20000 [OP] New Member

    Joined:
    Dec 11, 2018
    Member:
    #275551
    Messages:
    4
    I’ll pick one up when I can then. Thank you for the help Koditten! Saved me a world of hassle
     
    koditten likes this.
  7. Dec 12, 2018 at 12:40 AM
    #7
    Wyoming09

    Wyoming09 Well-Known Member

    Joined:
    Apr 24, 2015
    Member:
    #153833
    Messages:
    10,578
    Gender:
    Male
    New Tripoli Pa
    Vehicle:
    2000 Work truck 5 speed 4x4 3.4
    Super Springs
    I have never had luck with a propane torch getting hot enough So I never try just go to OXY-Fuel

    For me the easy fix is just cut the bung off weld a new one on then most times the studs are broke or threads impossible to clean up

    After the first time fighting trying to get rusted nuts off without breaking anything more
     
  8. Dec 25, 2018 at 9:06 AM
    #8
    Wsidr1

    Wsidr1 Well-Known Member

    Joined:
    Jul 11, 2018
    Member:
    #259004
    Messages:
    1,788
    Gender:
    Male
    Indiana
    Vehicle:
    2 x 95.5 Ext 2.7L & 3.4L A/T 4x4
    @Stryker20000

    Did you get the nuts removed?

    I am making this suggestion just in case: you don't have oxy/acetylene and/or a welder; the propane torch and channel locks did not work. Those are definitely better alternatives, but if you need to try something simple/cheap, a nut splitter, and then a chisel and hammer can be used. I'd pre-soak with penetrating fluid of choice, or 50/50 ATF + acetone (Lowes/HomeDepot).

    Before I got an oxy/ac setup, I would use a nut splitter to get a decent groove started, then go to a hammer/chisel. Angle the chisel so it cuts threw just off to one side of the threads, not directly towards them. The hammering helps break the threads loose, whereas if you just continue with the splitter, you might end up with damaged threads. Kind of defeats the purpose.

    Example:

    https://www.amazon.com/Elitexion-2p...5756650&sr=8-7&keywords=nut+splitter+tool+set
     
  9. Dec 25, 2018 at 9:26 AM
    #9
    Stryker20000

    Stryker20000 [OP] New Member

    Joined:
    Dec 11, 2018
    Member:
    #275551
    Messages:
    4
    Sadly not yet. I have been working between 48-72 hours a week still and haven’t had the energy yet to get to it. I have a 4 day weekend coming up so I am going to try it then. I just hope the weather holds up.
     

Products Discussed in

To Top