new Honda CR-V break in

Discussion in 'CR-V' started by Guy, Jan 1, 2010.

  1. Guy

    jim beam Guest

    so /you/ did the math too??? somehow, i find that hard to believe.
     
    jim beam, Jan 2, 2010
    #81
  2. Guy

    Guy Guest

    Wow, you admit the factory might be wrong but you can't.
    I find that NOT hard to believe.
     
    Guy, Jan 2, 2010
    #82
  3. Guy

    Guy Guest

    Wow, you admit the factory might be wrong but you can't.
    I find that NOT hard to believe.
     
    Guy, Jan 2, 2010
    #83
  4. Guy

    Tegger Guest

    :



    I've used the factory washer and torque setting of 33 ft/lbs (45 Nm) for
    close to ten years now. The six years prior to that I mostly used a fiber
    washer and 20 ft/lbs.

    My suspicion is that oil pan thread stripping is due to /severe/
    overtightening, not adherence to the factory setting.

    I also suspect the factory beefed up the threads on pans made after 1991 by
    using a slightly heavier gauge of steel for the thread insert.
     
    Tegger, Jan 2, 2010
    #84
  5. Guy

    jim beam Guest

    "you admit the factory might be wrong but you can't"???

    on the basis that you're evidencing an english language "garbage out"
    problem, there must also be english language "garbage in" problem with
    you too. which explains everything!
     
    jim beam, Jan 2, 2010
    #85
  6. Guy

    jim beam Guest

    "you admit the factory might be wrong but you can't"???

    on the basis that you're evidencing an english language "garbage out"
    problem, there must also be english language "garbage in" problem with
    you too. which explains everything!
     
    jim beam, Jan 2, 2010
    #86
  7. Guy

    jim beam Guest

    in my opinion, 45 N.m is over-tightening. two reasons:

    1. the oil pan is a relatively soft material - it has to be to be formed
    out of a single piece of steel like that. torque near yield, plus
    thermal cycling loads - too close for my comfort.

    2. the annealed aluminum washer starts out pretty much as soft as the
    fiber washer - it seals by deformation filling all the crevices, not by
    compression as such.

    bottom line - once it's deformed enough to seal, it doesn't need to be
    deformed any more. torque similar to the fiber washer is sufficient.
    i'm not sure most of them even have a thread insert. if they did, it
    could indeed be a stronger material and higher torque, but that's not
    the point - the point is that torque only needs to be sufficient to
    cause washer deformation sufficient to seal - and to provide sufficient
    friction to prevent loosening. anything over that is excess. honda
    have specified a mechanical load torque on a non-mechanical load fastener.
     
    jim beam, Jan 2, 2010
    #87
  8. Guy

    jim beam Guest

    in my opinion, 45 N.m is over-tightening. two reasons:

    1. the oil pan is a relatively soft material - it has to be to be formed
    out of a single piece of steel like that. torque near yield, plus
    thermal cycling loads - too close for my comfort.

    2. the annealed aluminum washer starts out pretty much as soft as the
    fiber washer - it seals by deformation filling all the crevices, not by
    compression as such.

    bottom line - once it's deformed enough to seal, it doesn't need to be
    deformed any more. torque similar to the fiber washer is sufficient.
    i'm not sure most of them even have a thread insert. if they did, it
    could indeed be a stronger material and higher torque, but that's not
    the point - the point is that torque only needs to be sufficient to
    cause washer deformation sufficient to seal - and to provide sufficient
    friction to prevent loosening. anything over that is excess. honda
    have specified a mechanical load torque on a non-mechanical load fastener.
     
    jim beam, Jan 2, 2010
    #88
  9. Guy

    Guy Guest


    Thanks for giving me the best word to describe what I think of your
    opinion now... "garbage". People disagree but when some people carry
    on the way you do, they have something wrong. Why not make yourself
    happy and PLONK me so I don't have to see your "garbage" posts any
    longer.
     
    Guy, Jan 2, 2010
    #89
  10. Guy

    Guy Guest


    Thanks for giving me the best word to describe what I think of your
    opinion now... "garbage". People disagree but when some people carry
    on the way you do, they have something wrong. Why not make yourself
    happy and PLONK me so I don't have to see your "garbage" posts any
    longer.
     
    Guy, Jan 2, 2010
    #90
  11. Guy

    Brian Smith Guest

    You have to "plonk" him to avoid seeing his posts.
     
    Brian Smith, Jan 2, 2010
    #91
  12. Guy

    Brian Smith Guest

    You have to "plonk" him to avoid seeing his posts.
     
    Brian Smith, Jan 2, 2010
    #92
  13. Guy

    Guy Guest


    You're right. Still hope he PLONKS me first.
     
    Guy, Jan 2, 2010
    #93
  14. Guy

    Guy Guest


    You're right. Still hope he PLONKS me first.
     
    Guy, Jan 2, 2010
    #94
  15. Guy

    jim beam Guest

    i have a better solution: you stop flaunting your willful ignorance,
    then see what kind a reaction you get. think about it. if you can.
     
    jim beam, Jan 2, 2010
    #95
  16. Guy

    jim beam Guest

    i have a better solution: you stop flaunting your willful ignorance,
    then see what kind a reaction you get. think about it. if you can.
     
    jim beam, Jan 2, 2010
    #96
  17. Guy

    jim beam Guest

    he's not that smart. especially since he couldn't figure it out from my
    "killfile" post several messages back.
     
    jim beam, Jan 2, 2010
    #97
  18. Guy

    jim beam Guest

    he's not that smart. especially since he couldn't figure it out from my
    "killfile" post several messages back.
     
    jim beam, Jan 2, 2010
    #98
  19. Guy

    jim beam Guest

    why? because your retardation is /my/ fault?
     
    jim beam, Jan 2, 2010
    #99
  20. Guy

    jim beam Guest

    why? because your retardation is /my/ fault?
     
    jim beam, Jan 2, 2010
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