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Thread: Clunking from front when changing gear!

  1. #1
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    Default Clunking from front when changing gear!

    Having jsut bought a 2005 Sri 2.0 Turbo, I have noticed that there is a clunking front the drive system when the clutch is lifted and the engine uptakes to move off. This also occurs when changing gear rapidly in say- 2nd, 3rd and 4th. I also have a 'rattling/pinking' noise when pulling away with the revs a tad low in the higher gears. On searching for infor on this I came across this. GULP! £700 at least I'm told.
    DUAL MASS FLYWHEEL (DMF) PROBLEMS

    WHAT IS A DMF? WHY DO WE NEED A DMF?

    A DMF flywheel is made up of two main parts one is bolted to the engine and one to the clutch, it is joined together by springs and friction pads, its job is to absorb any shocks from the engine and to smooth out the power flow to the transmission. This makes the vehicle smoother and also reduces wear on the gearbox etc.
    WHAT GOES WRONG WITH DMFíS?

    1. The friction pads wear and the springs rattle when starting and stopping the engine. 2. Shuddering under full load at low revs (15-2000rpm) 3. Difficult to select gears with engine running 4. Damaged by slipping clutch (overheats) 5. Excessive clutch slip and/or 'clunking' from the gearbox area
    HOW CAN WE MAKE THE DMF LAST LONGER?

    1. Donít hold vehicle on a hill with the clutch (overheats DMF) 2. Donít use fully throttle below 2000rpm 3. Donít change gear aggressively, let the clutch in gently, especially if towing or fully loaded.
    4. If you have the ECU chipped make sure they know what they are doing as the manufacture has detuned the engine in low gears to prevent damage to DMF and transmission.
    FIT SOLID FLYWHEEL OR KEEP DMF?

    I would not fit a solid flywheel unless you are Taxi driver(high mileage) or tow every day of the week, as it will not be as smooth as originally designed. If you do decide to fit one, make sure the clutch center plate you use has large springs with a long travel, to dampen the shocks (Valeo make a kit) donít use the standard clutch. If the DMF has done 80,000 miles are you going to do another 80,000, probably not? So it worth the extra noise/harshness.
    WHAT CARS ARE FITTED WITH DMFíS?

    Mainly diesels, about 50% of cars made now have a DMF and growing. Audi, BMW, Chevrolet, Citroen, Ford, Honda, Hyundai, Jaguar, Kia, Land Rover/Range Rover, LDV, Mazda, Mercedes, MG, Mini, Mitsubishi, Nissan, Opel, Peugeot, Puch, Saab, Seat, Skoda, Ssanngyong, Suzuki, Toyota, Vauxhall, Volkswagen, Volvo all have DMFís fitted.

  2. #2
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    Clutch and DMF is 450 pounds for the parts

  3. #3
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

    Default

    Don't change to a solid flywheel. As you they way a lot more, so increasing inertia

    Their will be extra vibration aswel. And many cases about of snapped crankshafts etc.

    So steer clear from solid flywheel.

    You'll be looking at about 5 hours labour clutch plus parts.

    Try a clutch specialist as these will usually be quicker and cheaper than a standard garage

  4. #4
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    i paid 600 for a clutch and flywheel fitted and thats original LUK parts so shop around!!

  5. #5
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    Cheers for tips guys- I will see what the future holds!

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    sure its not an engine mounting ??

  7. #7
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    i had the same problem and on my car it turned out to be the hub nut not tight enough

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