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  1. #1
    Veteran Member Four Rings doublezero30's Avatar
    Join Date
    May 21 2007
    AZ Member #
    18213
    Location
    Florida

    Quote Originally Posted by diagnosticator View Post
    With the clutch engaged in neutral, it's not really possible for the pilot bearing or the through-out bearing to make rattling noises, because there is no load on either bearing.(pedal not pushed down.) More likely, sounds to me like your DMFW is worn out and causing the rattle noise, based on when the rattle occurs. In any case, replacing the pilot bearing should always be included when replacing the clutch. (For worn out clutches, not necessarily failed low mileage clutches.)
    so is it ok to do a "flywheel slap" and not replace the clutch with the flywheel? my clutch is fairly new. i wouldnt mind going LWFW. and i could just press a new pilor bearing into the LWFW and not have to worry about it?
    2018 Navarro Blue Q5

  2. #2
    Veteran Member Four Rings diagnosticator's Avatar
    Join Date
    Aug 26 2005
    AZ Member #
    7741
    Location
    Seattle, WA

    Quote Originally Posted by doublezero30 View Post
    so is it ok to do a "flywheel slap" and not replace the clutch with the flywheel? my clutch is fairly new. i wouldnt mind going LWFW. and i could just press a new pilor bearing into the LWFW and not have to worry about it?
    Yes, replacing the flywheel while reusing the existing low mileage clutch assembly is not a problem. However, the pilot bearing is installed in the crankshaft, not the flywheel. One thing to consider with a LWFW, is that it will almost certainly make a similar rattling noise as the worn out DMFW you have now. The rattling noise is from the crankshaft torsional vibrations passing through the faulty DMFW, (that when in good condition absorbs the vibrations from the crankshaft,) and then causes the gears to oscillate within the free play of the gear tooth clearance in the trans, with the trans in neutral and the clutch engaged. So it's actually the transmission rattling, not the clutch or through-out bearing. Since a LWFW cannot absorb the torsional vibrations from the crankshaft, the same or similar gear rattle will occur with a LWFW that you are experiencing now with the bad DMFW. IMO, I think you are bettor off, and will be happier with a new or reman DMFW instead of a LWFW over the long term.
    Last edited by diagnosticator; 12-28-2010 at 07:13 AM.
    Vorsprung durch Technik

  3. #3
    Senior Member Two Rings
    Join Date
    Oct 14 2006
    AZ Member #
    11255
    My Garage
    2002 A4 Quattro 1.8TM
    Location
    Dallas, TX

    Anyone have some more tips on how to get the pilot bearing out? I have tried over and over with the tool you rent from Autozone with no luck..

    Thanks!

  4. #4
    Registered User Four Rings
    Join Date
    Feb 08 2011
    AZ Member #
    70665
    My Garage
    B5 A4 2 liter HTA3586r
    Location
    Phoenix, Arizona area

    Quote Originally Posted by dga4 View Post
    Anyone have some more tips on how to get the pilot bearing out? I have tried over and over with the tool you rent from Autozone with no luck..

    Thanks!
    Did you rent the slide hammer type? The other ones wont work well if the pilot bearing housing is damaged. I can usually pull mine out with a few hits with my slide hammer type of bearing puller.

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