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

time chain cover stud doesn't hold threads (socket stripped)

Discussion in '2nd Gen. Tacomas (2005-2015)' started by foampile, Sep 10, 2015.

  1. Sep 10, 2015 at 8:35 AM
    #1
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
    One of my two timing chain cover studs won't go back in because the threads in the block are either stripped or the gasket maker got in the hole and prevents gripping (unlikely but i guess possible). As a result, I can't torque the nut on the other end because any attempt causes the stud/bolt to break out of the little grip it has on the other side. It spins in place no matter how much I tighten. The other stud/bolt works fine.

    All the other timing chain cover bolts went in fine and I torqued them to 17 ft/lbs. What are my options here ? Is there any hope that some thread sealant would ensure a better grip ? I am hoping not to have to use Helicoil. I tried running a tap in it but to no avail.

    The arrow in the picture below shows the stud/bolt in question. The picture is old, I have the cover on now. I didn't take them off when I was dismounting the cover but then someone told me I should before putting it back on because it will be easier.

    chain_cover_stud.jpg
     
    Last edited: Sep 10, 2015
  2. Sep 10, 2015 at 12:18 PM
    #2
    Chuy

    Chuy Well-Known Member

    Joined:
    Aug 4, 2008
    Member:
    #8328
    Messages:
    1,956
    Gender:
    Male
    Lakeside, CA
    Vehicle:
    07 V6 DCLB 4X4 Sp
    2.5 inch lift; 5100's front; OME rear; Air Lift; dual batteries; Bestop bed cover; Nfab nerf steps; EBC rotors; Threadwright Claw MT tires; hood scoop LED light install.
    I solved a similar problem by tapping hole to next largest bolt size. However, I don't see that you have much material there and you'll have to drill out the cover also. I'm inclined to suggest the Helicoil. If it were not a critical location like this, I might even suggest using red thread locker, but I would do it right for this component.
     
    Why J likes this.
  3. Sep 10, 2015 at 12:29 PM
    #3
    Torspd

    Torspd Tor-nication

    Joined:
    Sep 18, 2009
    Member:
    #22958
    Messages:
    21,840
    Gender:
    Male
    First Name:
    Tor
    The Great America!
    Vehicle:
    MMVI 4.4L 4x4 Access Cab
    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] Haltech Elite 2500 [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 160* T-stat mod [] APR Large Fuel Rail [] Walbro 460 LPH E85 Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    How long did you wait to install the stud,after installing the timing cover?
     
  4. Sep 10, 2015 at 12:30 PM
    #4
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
    a few minutes, IOW right after
     
  5. Sep 10, 2015 at 1:21 PM
    #5
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
  6. Sep 10, 2015 at 1:27 PM
    #6
    TacomaMike37

    TacomaMike37 Well-Known Member

    Joined:
    Aug 12, 2013
    Member:
    #110316
    Messages:
    4,996
    Gender:
    Male
    First Name:
    Mike
    Vehicle:
    13' DCLB MGM
  7. Sep 10, 2015 at 2:59 PM
    #7
    Jimmyh

    Jimmyh Well-Known Member

    Joined:
    May 16, 2012
    Member:
    #78991
    Messages:
    12,107
    Gender:
    Male
    SC
    Vehicle:
    2012 Prerunner SR5
    Either way you are going to have to remove the timing cover to do it correctly. If it were me I wouldn't bother with the quickie fixes as the Magic Locktite Thread Maker .... Half Assed Fix if it even works.

    Do it properly : Remove the timing cover and install a Thread Insert or a Helicoil.
    After all the time you have in this engine why half ass it when you are so close?

    Oh and learn how to not strip bolts/nuts/studs.

    :)
     
    DoorDing likes this.
  8. Sep 10, 2015 at 3:03 PM
    #8
    adanfon

    adanfon YNWA

    Joined:
    Dec 3, 2011
    Member:
    #68101
    Messages:
    1,900
    Gender:
    Male
    First Name:
    Adán
    Hanford, CA
    Vehicle:
    '11 Tacoma DCLB 4x4
    So the stud won't go in, it only catches a couple threads and pulls itself back out?
     
  9. Sep 10, 2015 at 3:06 PM
    #9
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
    sort of. it feels like it's going in but towards the end, it just starts an infinite spin never increasing the torque. if i try to tighten the nut over it, it actually starts reversing the stud
     
  10. Sep 10, 2015 at 3:11 PM
    #10
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
    One more question: out of a total of 19 fasteners on this cover, only 2 are studs with a nut. What is it that they do that a plain bolt like the rest of the 17 can't do ?
     
  11. Sep 10, 2015 at 3:15 PM
    #11
    Bullfrog 75

    Bullfrog 75 Well-Known Member

    Joined:
    Sep 4, 2015
    Member:
    #163433
    Messages:
    71
    Gender:
    Male
    First Name:
    Jeremy
    Vehicle:
    2002 red prerunner
  12. Sep 10, 2015 at 3:17 PM
    #12
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
    Yet another question: considering that this is just one of the 19 fasteners of the cover, and that excludes the ones from the water pump, how much leak could I expect if I just left it off ?
     
  13. Sep 10, 2015 at 3:26 PM
    #13
    Drivesector

    Drivesector Well-Known Member

    Joined:
    May 6, 2012
    Member:
    #78302
    Messages:
    286
    Gender:
    Male
    Vehicle:
    TRD sport
    Try to install a slightly longer stud if possible. You may catch a few good threads if it doesn't bottom out. See if one of the bolts will catch in there.
     
    foampile [OP] likes this.
  14. Sep 10, 2015 at 3:27 PM
    #14
    Why J

    Why J I'm the master of my own domain.

    Joined:
    Mar 4, 2015
    Member:
    #150080
    Messages:
    174
    Gender:
    Male
    Vehicle:
    2012 DCSB V6 SR5 Prerunner
    OEM Roof Rack, 3" lift, 1.25" Spidertrax Wheel Spacer, Front skid plate
    Just fix it right. No one can answer your hypothetical what if's

    A helicoil is the correct way to fix this. It is easy to install.
     
  15. Sep 10, 2015 at 3:27 PM
    #15
    foampile

    foampile [OP] Well-Known Member

    Joined:
    Dec 15, 2011
    Member:
    #68807
    Messages:
    721
    Gender:
    Male
    Mid-Atlantic
    Vehicle:
    2007 V6 4WD 6 speed Extended Cab
    yeah, i was thinking the same thing
     
  16. Sep 10, 2015 at 4:16 PM
    #16
    adanfon

    adanfon YNWA

    Joined:
    Dec 3, 2011
    Member:
    #68101
    Messages:
    1,900
    Gender:
    Male
    First Name:
    Adán
    Hanford, CA
    Vehicle:
    '11 Tacoma DCLB 4x4
    Or use a bolt. And try applying slight pressure while threading it. It sounds like some fipg is blocking the path.
     
  17. Sep 10, 2015 at 8:43 PM
    #17
    Jimmyh

    Jimmyh Well-Known Member

    Joined:
    May 16, 2012
    Member:
    #78991
    Messages:
    12,107
    Gender:
    Male
    SC
    Vehicle:
    2012 Prerunner SR5
    Yeah but then you have to ask yourself how many of the threads are actually holding or are engaged?

    Questionable at best.
     
    DoorDing likes this.
  18. Sep 10, 2015 at 8:44 PM
    #18
    Jimmyh

    Jimmyh Well-Known Member

    Joined:
    May 16, 2012
    Member:
    #78991
    Messages:
    12,107
    Gender:
    Male
    SC
    Vehicle:
    2012 Prerunner SR5
    FIPG isn't going to stop a bolt. It is stripped threads in the block.
     
  19. Sep 10, 2015 at 8:48 PM
    #19
    Torspd

    Torspd Tor-nication

    Joined:
    Sep 18, 2009
    Member:
    #22958
    Messages:
    21,840
    Gender:
    Male
    First Name:
    Tor
    The Great America!
    Vehicle:
    MMVI 4.4L 4x4 Access Cab
    Torspd Custom Turbo kit [] Borg Warner 9180EFR Turbo [] Haltech Elite 2500 [] TiAL Q BOV [] TiAL V44 Wastegate @ 15psi [] CP Pistons [] CP Carrillo Rods [] ARP Head studs [] ARP Main Studs [] ARP Header - Head Studs [] Ported Heads w/ 1mm oversized valves intake/exhaust [] Brian Crower Forged Stroker Crank [] Darton M.I.D. Sleeved Block [] Kelford Camshafts [] Torspd 160* T-stat mod [] APR Large Fuel Rail [] Walbro 460 LPH E85 Fuel Pump [] FueLab FPR [] APR T56 Conversion Kit [] KP RACING Built T56 [] McLeod Racing Custom Twin Disk Clutch [] One Piece Aluminum Driveshaft [] MGW Shifter [] Custom lowering kit [] Ohlins Front Coilovers [] QA1rear shocks [] Custom Ron Davis Radiator [] Dual SPAL Electric Fans []
    You're left with seeing if it works without it, or pulling it apart and fixing it with a heli-coil.
     
  20. Sep 10, 2015 at 8:56 PM
    #20
    adanfon

    adanfon YNWA

    Joined:
    Dec 3, 2011
    Member:
    #68101
    Messages:
    1,900
    Gender:
    Male
    First Name:
    Adán
    Hanford, CA
    Vehicle:
    '11 Tacoma DCLB 4x4
    It will if air is trapped inside the threads.
     

Products Discussed in

To Top