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Thread: what dat sound!

  1. #1
    casual poster KILLA HJ's Avatar
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    Unhappy what dat sound!

    Hey, only new to forums looks great though. O.k just got the motor back together in the HJ, and seems to have developed a metal clunk in the rear half of the motor. This is strange to me as only the top end was apart (blow head gasket). This sound was not there before, how ever the car has no problems with start up, idel, compression how ever this sound is still there. GOT ME STUMPED. Got any ideas. Cheers!

  2. #2
    casual poster starkie85's Avatar
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    does the sound stay there when u are driving or just when it is ideling???

  3. #3
    Moderator Daryn's Avatar
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    I'm assuming this is for a V8 so I've moved it into the holden V8 section. The other section was for site related questions or feedback.

    Cheers

  4. #4
    casual poster KILLA HJ's Avatar
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    Only at idel

  5. #5
    Moderator Daryn's Avatar
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    What gearbox have you got? In my VS, when at idle if the clutch is out I have a knocking sound but if its pushed in it goes away. I think its the throw out bearing or thrust bearing.

    Or maybe its something knocking against the engine?

  6. #6
    casual poster starkie85's Avatar
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    i had a vs that had a knocking sound only at idle it was the harmonic balencer have u cheked that???

  7. #7
    casual poster KILLA HJ's Avatar
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    Box is T400, 4000 stall full manual

  8. #8
    makit fit makit go hard folden@308's Avatar
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    when ya blew the gasket did it pump water into the cylender ?
    if so maybe it has cracked a piston water on a hot ally bit does not mix seen a few with melted centres of the pistons and small hair line cracks ,,an they will knok and will get worse as time goes by,,
    also if the water went in it may of hydrauliced the piston an bent a con rod
    http://au.geocities.com/folden308/revingthemup.html
    check out my toys go hard or go home

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