Results 1 to 10 of 10

Thread: New crankshaft pulley bolt came loose

  1. 3rd March 2013, 03:02 PM #1
    dunk_98
    dunk_98 is offline Fossicker
    Join Date
    Jan 2012
    Location
    Brisbane
    Posts
    49
    Total Downloaded
    0

    New crankshaft pulley bolt came loose

    So about a month ago i replaced my crank shaft pulley and fitted a new bolt after renting a 3/4 drive torque wrench i did it up to the recomended rating in rave, so today after having a problem with my auto tensioner and having to fit a new belt at the correct length i put my 24mm socket on the crankshaft puller bolt to hold it in place

    To my supprise it started to undo, so as you can guess i was a little p.o. About this. Sp now for the moment i have retorqued it with the tools i have unsure of the setting but i defiantle believe it to be above the previous one

    Now to the questions:
    1. Why would it of come undone
    2. Would it be ok to continue using this bolt
    3. If i order a new one should i locktight it
    4. Anything else you can think of

    Now problems ive had at the same time that led me to find the pulley in the first place was a busted bearing on the auto tentioner pulley
    I have sincs replaced it with an aftermarket on from the uk
    I found after a couple of weeks the autotemtioning part became stiff to the point of i could move it to a position with the belt on and it would stay there. I believe this cause me to shread a belt due to it going loose and comeing off so i removed it and replaced it with my old one but swaping out the pulley off the new one but the new crank had been going great during this time and only found the new bolt to be loose after swaping out my temporary belt which was 20mm longer that stock with the new oem

    Thanks in advance
    Matt
    Reply With Quote Reply With Quote
  2. 3rd March 2013, 03:42 PM #2
    robbotd5's Avatar
    robbotd5
    robbotd5 is offline Wizard
    Join Date
    Jul 2009
    Location
    Lake Macquarie NSW
    Posts
    1,353
    Total Downloaded
    0
    TD5 or V8???
    Regards
    Robbo
    Reply With Quote Reply With Quote
  3. 3rd March 2013, 04:36 PM #3
    dunk_98
    dunk_98 is offline Fossicker
    Join Date
    Jan 2012
    Location
    Brisbane
    Posts
    49
    Total Downloaded
    0
    sorry 1999 TD5 Manual
    Reply With Quote Reply With Quote
  4. 3rd March 2013, 05:36 PM #4
    alien's Avatar
    alien
    alien is offline A Keeper of the TGO Silver Subscriber
    Join Date
    Jun 2009
    Location
    Bacchus Marsh Vic.
    Posts
    3,340
    Total Downloaded
    0
    I've had the harmonic fail when a adjuster seized and it grabed the belt.
    If the worst that happened was a loose bolt I'd have been happy
    IMO being a new item it held together and the bolt came loose instead

    If one bearing(adjuster) has failed I'd look at any idler bearings too.
    If one has failed how far away from failing are others in the system?

    It is recomened to change the bolt but as it's not old I'd reuse it.
    Don't use locktite either.
    Also don't start it if this bolt isn't tight, it will spin the crank inside the pulley
    Cheers, Kyle



    The Good Oil.
    When did you last visit?
    http://www.aulro.com/afvb/good-oil/


    Reply With Quote Reply With Quote
  5. 3rd March 2013, 05:56 PM #5
    87County's Avatar
    87County
    87County is offline AT REST
    Join Date
    May 2007
    Location
    in the wild New England, NSW
    Posts
    4,918
    Total Downloaded
    0
    Quote Originally Posted by alien View Post
    .
    .
    .Don't use locktite either.
    ..........

    Is that a procedural thing by the manual ?

    Just like to understand why you would not use Loktite
    Reply With Quote Reply With Quote
  6. 3rd March 2013, 05:59 PM #6
    dunk_98
    dunk_98 is offline Fossicker
    Join Date
    Jan 2012
    Location
    Brisbane
    Posts
    49
    Total Downloaded
    0
    I have changed the other idler pulley, also the alternator got changed 3month prior, powerstreering and aircon and fan seem fine
    Reply With Quote Reply With Quote
  7. 3rd March 2013, 07:16 PM #7
    alien's Avatar
    alien
    alien is offline A Keeper of the TGO Silver Subscriber
    Join Date
    Jun 2009
    Location
    Bacchus Marsh Vic.
    Posts
    3,340
    Total Downloaded
    0
    Quote Originally Posted by 87County View Post
    Is that a procedural thing by the manual ?

    Just like to understand why you would not use Loktite
    There are a few reasons...
    The manuals I've read don't list it as needed.
    The bolt does up to over 440Ft/lb (unlike the dreaded oil pump drive bolt at only 18Ft/lb).
    Being in a bad spot to work by the time you get the tourqe wrench on the locktite can be setting giving faulse readings.
    Lossening the bolt next time with locktite could be difficult(it's hard as it is).
    Cleaning the crank of dried loctite would be hard too( thread is over 100m into the crank).

    Don't get me wrong, I use locktite all the time but this is not one of them.
    Cheers, Kyle



    The Good Oil.
    When did you last visit?
    http://www.aulro.com/afvb/good-oil/


    Reply With Quote Reply With Quote
  8. 3rd March 2013, 07:37 PM #8
    87County's Avatar
    87County
    87County is offline AT REST
    Join Date
    May 2007
    Location
    in the wild New England, NSW
    Posts
    4,918
    Total Downloaded
    0
    Quote Originally Posted by alien View Post
    There are a few reasons...
    The manuals I've read don't list it as needed.
    The bolt does up to over 440Ft/lb (unlike the dreaded oil pump drive bolt at only 18Ft/lb).
    Being in a bad spot to work by the time you get the tourqe wrench on the locktite can be setting giving faulse readings.
    Lossening the bolt next time with locktite could be difficult(it's hard as it is).
    Cleaning the crank of dried loctite would be hard too( thread is over 100m into the crank).

    Don't get me wrong, I use locktite all the time but this is not one of them.
    OK - thanks

    it's just that Loktite is regularly used on the crankshaft bolt on the 300tdi and doesn't present too much of a problem
    Reply With Quote Reply With Quote
  9. 4th March 2013, 02:08 PM #9
    It'sNotWorthComplaining! Guest
    Merasure the length of the bolt, maybe it stretched, you bought aftermarket from overseas, maybe the quality was suss?
    Reply With Quote Reply With Quote
  10. 4th March 2013, 04:33 PM #10
    dunk_98
    dunk_98 is offline Fossicker
    Join Date
    Jan 2012
    Location
    Brisbane
    Posts
    49
    Total Downloaded
    0
    the bolt was oem land rover, just the auto tentioner and crank pulley were aftermarket
    Reply With Quote Reply With Quote
« Hot Water? | Safari Snorkel Template »

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!