New tech dual mass flywheels , a look at what they are!
  • Register
  • Help
Results 1 to 12 of 12
Like Tree10Likes
  • 1 Post By jaahn
  • 1 Post By hagglund
  • 1 Post By John Handley
  • 2 Post By pug303
  • 1 Post By N5GTi6
  • 2 Post By racing405
  • 2 Post By Kim Luck

Thread: New tech dual mass flywheels , a look at what they are!

  1. #1
    1000+ Posts
    Join Date
    Nov 2010
    Location
    Newcastle
    Posts
    1,825

    Default New tech dual mass flywheels , a look at what they are!

    Hi
    I looked this up for someone who had been diagnosed with a failure of his flywheel. Feels expensive too
    As I know little about these "new fangled gadgets" I though it might be of interest to other old fogies on here also ! Plenty more where that came from but I thought this one was clear and concise
    http://www.understeer.com/pdf/dualmass.pdf
    jaahn

    Advertisement
    Alain likes this.

  2. #2
    1000+ Posts FIVEDOOR's Avatar
    Join Date
    Jun 2011
    Location
    Brisbane Qld
    Posts
    17,559

    Default

    Thanks
    Any day I wake up and don't have to go to work, is a good day
    Every day is a good day

  3. #3
    Member
    Join Date
    Jan 2017
    Location
    NZ Auckland papatoetoe
    Posts
    35

    Default

    Look up a new kit for sale on micks garage.com
    Include a new flywheel and buy a normal clutch instead

    Sent from my GT-I9505 using aussiefrogs mobile app
    jaahn likes this.

  4. #4
    Member
    Join Date
    May 2017
    Location
    NSW
    Posts
    93

    Default

    Hi. I would like to chip in here that I had a mate with a petrol BT50 ute with a crook clutch. I replaced the DMF for him with a regular clutch conversion kit. Honestly, I couldn't tell the difference from before when the DMF was working. And the kit cost about half the price of the new DMF kit. I reckon they are a bit of hoax, and an expensive one. That's just my one time experience, so maybe not much to bet the bank on.

    Cheers, John.
    Wildebeest likes this.

  5. #5
    Too many posts! JohnW's Avatar
    Join Date
    Jul 2001
    Location
    Perth, WA, Australia
    Posts
    8,550

    Default

    Thanks for that. Interesting - I had no idea they were made that way! Judging by the troubleshooting comments, they are a bit vulnerable to bad/rough driving. I've come across the odd failure at low km from people known to people I know....

    See also Dual Mass to Single Mass flywheel conversion for a warning about assuming that because one conversion to a single mass was OK the next one will also be OK!

    I presume it is basically about smoothing out something a bit rough in rotational accelerations, a bit like WO Bentley discovered when he needed rubber engine mounts for his first, 3-litre car.
    JohnW

    Renault 4CV 1951
    Renault R8 1965
    Renault Scenic 2005 (wife's)
    Renault Scenic 2007 (mine)
    Peugeot 306 XT 1995 (daughter's)
    CitroŽn CX Pallas 1980

    National Co-ordinator, Renault 4CV Register of Australia

  6. #6
    Tadpole s9810588's Avatar
    Join Date
    Sep 2013
    Location
    Melbourne
    Posts
    26

    Default

    I had unpleasant and expensive experience changing from DMF to SMF.

    In my case, VW/Audi 2.0L turbo engine does not have harmonic balancer and uses DMF to balance torsional harmonics. The SMF combo lasted 12,000km before it started making horrible metal screeching noise. Back to DMF and I have no problem since. The mechanic had first hand experience of spun big end bearing on the Golf R32 V6 engine that has gone to SMF.

    What an expensive experience having to buy two clutch & flywheel kits twice in two years and the labour to change clutch. The SMF clutch kit wasn't a cheapo either - it was ZF Sachs one.

  7. #7
    Fellow Frogger!
    Join Date
    Dec 2002
    Location
    CANBERRA
    Posts
    380

    Default

    Swapped from DMF to single on my 2.5l diesel Pathfinder years ago. Initially it felt a bit rougher but we soon got used to that and now more than 150,000 hard kilometers later I'm still grinning (DMF only lasted 95,000).
    jaahn and dvr like this.

  8. #8
    Fellow Frogger! N5GTi6's Avatar
    Join Date
    Mar 2004
    Location
    Sydney
    Posts
    832

    Default

    The SMF clutch on our GTi6 with 190nm of torque lasted 110K km's
    The DMF clutch on our 308 2.0 HDi with 320nm of torque is still going @ 190K km's - although of course now I've said that it will die any day now......is this an Old tech dual mass flywheel or a New tech dual mass flywheel ?

    Cheers

    Justin
    '07 Megane R26
    '07 C3 Exclusive
    '09 308XSE Touring

  9. #9
    UFO
    UFO is offline
    CitroŽn Tragic UFO's Avatar
    Join Date
    Aug 2001
    Location
    Gerringong, NSW, Australia
    Posts
    9,159

    Default

    Quote Originally Posted by N5GTi6 View Post
    The SMF clutch on our GTi6 with 190nm of torque lasted 110K km's
    The DMF clutch on our 308 2.0 HDi with 320nm of torque is still going @ 190K km's - although of course now I've said that it will die any day now......is this an Old tech dual mass flywheel or a New tech dual mass flywheel ?

    Cheers

    Justin
    You've said it twice now. You're really tempting fate!

  10. #10
    Fellow Frogger! N5GTi6's Avatar
    Join Date
    Mar 2004
    Location
    Sydney
    Posts
    832

    Default

    Quote Originally Posted by UFO View Post
    You've said it twice now. You're really tempting fate!
    Thanksfully the Delorean doesn't have a clutch so I went back in time and fixed that up ...

    Cheers

    Justin
    jaahn likes this.
    '07 Megane R26
    '07 C3 Exclusive
    '09 308XSE Touring

  11. #11
    Fellow Frogger! racing405's Avatar
    Join Date
    Jan 2011
    Location
    Traralgon
    Posts
    600

    Default

    My 306 did it's entire life without a clutch change. Just about 250k and the clutch was still serviceable when it went in the bin.
    Kim Luck and jaahn like this.
    racing 405
    1:59:09 last time at Phillip Island - less than standard Mi16.

  12. #12
    1000+ Posts Kim Luck's Avatar
    Join Date
    Nov 2010
    Location
    Melbourne, Aus.
    Posts
    16,032

    Default

    Quote Originally Posted by racing405 View Post
    My 306 did it's entire life without a clutch change. Just about 250k and the clutch was still serviceable when it went in the bin.
    Like every manual car should, driven by mechanically sympathetic drivers....
    jaahn and N5GTi6 like this.
    It's another lovely day! Again!

Thread Information

Users Browsing this Thread

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

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •