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Thread: What is that noise??

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    Expert JackoGQYoot's Avatar
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    What is that noise??

    Hi all
    I have a 1994 TD42 coil cab, and since I bought it I have noticed a noise that I can describe as a chatter or rattle. It only happens at low revs under load, and when engine braking down a hill. When driving through the sand at low revs it constantly makes the noise. Would you be able to tell me what it is so I can get it fixed, as it makes the car sound very unhealthy.
    Cheers
    Td42 coily

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    Low revs and/or under load creates a lot of vibrations .

    If its rattles and clacky then check all your heat shields.

    Sometimes engine mounts wear out so makes these rattles worse as opposed to a new engine mount that doesn't allow these rattles to occur.

  4. The Following User Says Thank You to drgtr For This Useful Post:

    JackoGQYoot (4th April 2018)

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    Expert JackoGQYoot's Avatar
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    Could it be the clutch at all? How much would a new set of engine mounts cost me?
    Td42 coily

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    Patrol God threedogs's Avatar
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    I thought all 4.2s made a weird sound down low ask @Winnie
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    JackoGQYoot (4th April 2018)

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    Expert JackoGQYoot's Avatar
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    Yeah, I read on another forum, it may be the springs or something inside the clutch, and a few guys have got rid of the noise by changing their clutch to heavy duty and replacing the gear oils.
    Cheers
    Td42 coily

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    If it sounds like its coming from the gearbox and changes pitch with a give or take 50rpm its the 4.2 torque rattle and that's to let you know the big tractor is working down low.
    U have 4 choices in life :U can like it; lump it; love it or shove it, take your pick and stick to it !

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    JackoGQYoot (4th April 2018)

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    Expert JackoGQYoot's Avatar
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    Would the toyota 4.2 diesels make the same noise? I heard an 80 series non turbo drive past and it made that same noise.
    Td42 coily

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    Hi guys
    I am looking at replacing the engine mounts on my patrol, which may have something to do with the noise. What does it take to replace them? I am looking at the Superior engineering comp spec ones. Is there any welding or anything to do, or can I fit a new set in my driveway? How many of them are there to replace?
    Cheers
    Td42 coily

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    Legendary Rossco's Avatar
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    Hey mate just be aware the superior ones transmit A LOT of vibration through to the car @Winnie has some in his GQ. From experience the factory ones seem to be fine.

    Sent from my SM-G930F using Tapatalk

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    Bidja (4th April 2018), JackoGQYoot (4th April 2018), Winnie (4th April 2018)

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    The 747 Winnie's Avatar
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    Quote Originally Posted by JackoGQYoot View Post
    Hi guys
    I am looking at replacing the engine mounts on my patrol, which may have something to do with the noise. What does it take to replace them? I am looking at the Superior engineering comp spec ones. Is there any welding or anything to do, or can I fit a new set in my driveway? How many of them are there to replace?
    Cheers
    There are two mounts to replace, it's tricky but can be done in the driveway. I have the superior mounts and don't like them, they vibrate a lot at low revs and make it impossible to hold a conversation.
    I'm looking at swapping them out again with genuine Nissan mounts.

    Sent from my SM-G960F using Tapatalk

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    JackoGQYoot (4th April 2018), threedogs (4th April 2018)

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