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Thread: 300 tdi clanging noise from engine.

  1. 23rd January 2017, 05:57 PM #1
    jboot51
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    300 tdi clanging noise from engine.

    Found the problem.
    This engine was still running but making a horrible clang.
    Crank had about 4mm end float, front half anyway.
    #2 Main bearing cap had 1 bolt finger tight and the other was only held in by the oil pick up tube.
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  2. 23rd January 2017, 06:08 PM #2
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    loanrangie
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    3cyl TDI 300 tdi clanging noise from engine.
    MY08 TDV6 SE D3- permagrin ooh yeah
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  3. 23rd January 2017, 06:39 PM #3
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    cripesamighty
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    Wow, how does that happen?
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  4. 23rd January 2017, 06:59 PM #4
    jboot51
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    This was not my engine, luckily.
    I swapped out this engine out for a known runner in another members disco.
    Curiosity got the better of me and I needed to see what all the noise was about.
    The clang came on all of sudden.
    The only warning sign possibly was it trashed a fan belt a few moths earlier.

    Upon tearing it down, I would say someone had put new bearings through it at some stage as they are in excellent condition, but failed to torque #2 main cap.
    '95 Defender 130 Single Cab
    HS2.8 TGV Powered
    ------------
    98% of all Land Rovers built are still on the road.
    The other 2% made it home.

    Cost difference between Britpart and Genuine seals: £2.04. Knowing that your brakes won't fail at any moment: Priceless.
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  5. 23rd January 2017, 08:15 PM #5
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    rick79
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    HOLEY DOOLEY!!!
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  6. 23rd January 2017, 09:15 PM #6
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    justinc
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    Quote Originally Posted by cripesamighty View Post
    Wow, how does that happen?
    Usually from poor machining practice. If this crank was ground to undersize bearings and not enough of a radius cut where the journal abutts the counterweight then the stress concentration at that point will cause a fracture to propagate.

    Jc
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  7. 24th January 2017, 02:31 AM #7
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    Thanks JC. That makes sense.
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