User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 7 of 7

Thread: Clunking from front when changing gear!

  1. #1
    New Member
    Join Date
    Feb 2012
    Location
    West Sussex
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    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 DMF’S?

    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. Don’t hold vehicle on a hill with the clutch (overheats DMF) 2. Don’t use fully throttle below 2000rpm 3. Don’t 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) don’t 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 DMF’S?

    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 DMF’s fitted.

  2. #2
    Regular Member
    Join Date
    Jan 2009
    Location
    N Ireland
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Clutch and DMF is 450 pounds for the parts

  3. #3
    Regular Member Critch's Avatar
    Join Date
    Dec 2009
    Location
    wirral
    Post Thanks / Like
    Mentioned
    61 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    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
    Regular Member
    Join Date
    Nov 2007
    Location
    lancashire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

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

  5. #5
    New Member
    Join Date
    Feb 2012
    Location
    West Sussex
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

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

  6. #6
    Regular Member
    Join Date
    Jan 2011
    Location
    lincolnshire
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    sure its not an engine mounting ??

  7. #7
    New Member
    Join Date
    Jul 2012
    Location
    st helens
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

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

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. clunking front end
    By andy_richmond in forum Suspension, Wheels & Brakes
    Replies: 23
    Last Post: 4th January 2013, 21:07
  2. clunking front brake pad
    By skidmark1 in forum Vectra C / Signum Car Chat
    Replies: 2
    Last Post: 28th July 2012, 19:48
  3. Clunking when changing gear - Problem found
    By ghostrider in forum Vectra C / Signum Troubleshooting
    Replies: 7
    Last Post: 16th April 2012, 14:21
  4. Clunking from offside front when braking
    By tubby in forum Suspension, Wheels & Brakes
    Replies: 3
    Last Post: 27th March 2011, 22:12
  5. clunking noise from the 2 front doors
    By peadar in forum Vectra C / Signum Car Chat
    Replies: 18
    Last Post: 26th November 2010, 23:18

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

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
  •