1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Really loud clicking/clonking under hard acceleration?

Discussion in 'A3/S3 Forum (8L Chassis)' started by KB, Apr 25, 2011.

  1. KB
    Offline

    KB Member

    Joined:
    Jul 4, 2010
    Messages:
    195
    Likes Received:
    1
    [Apr 25, 2011]
    Morning guys, recently replaced my gearbox in my s3, took it for a little test drive last night as its been sitting in the garage ever since ( about a month) was all fine but when i put the foot down and the turbo kicked in there was an almighty clicking/clonking sound! would this poss be a cv joint, which where fine before or could it be a problem with the gearbox i just put in? the car has hardly turned a wheel since november and ther wasnt any noises like this before.
    #1
  2. Ads

    Ads

    [Sep 18, 2014]

  3. dmac626
    Offline

    dmac626 New Member

    Joined:
    Apr 24, 2011
    Messages:
    8
    Likes Received:
    0
    [Apr 25, 2011]
    Does sound like a characteristic CV noise mate - they tend to make loud clicking/clonking/banging sounds when under load if they're shot or not fitted properly. Double check all the driveshaft fittings and CV joints closely....easy to pop one of the bearings out of the CV joint under the gaiter without realising. If needs be, strip out driveshafts and have a good look at them, possibly think about re-ferb'ing them while you've got them out? Replace gaiters, rinse out old oil and grease using a good kero bath or loads of WD40, then re-pack grease and repace gaiters. If you've got them stripped out, always worth the hour or so's work to repack everything. Make sure the driveshafts are fitted into the gearbox housing properly - a plastic/copper hammer and a good clumping towards the gearbox, just to make sure they're seated fully. Been known for a driveshaft to look fitted properly, but not quite past the sealing collar into the gearbox. Once re-fitted, ensure gearbox oil level's about right, and re-test. If the CV's have gone, it'll be relatively obvious. If it's the new gearbox - and the oil's at the right level and been allowed to run up to temperature, chances are it'll be the new gearbox with a problem. Might be teaching you to suck eggs chief, but does sound like a CV problem. Be prepared for the worst though! Hope this helped some...
    #2

Share This Page