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

brand new turbo fitted...=) 1.8t agu

Discussion in 'A3/S3 Forum (8L Chassis)' started by E4 FENN, Oct 6, 2010.

  1. E4 FENN
    Offline

    E4 FENN mr fenn

    Joined:
    Sep 13, 2009
    Messages:
    47
    Likes Received:
    1
    [Oct 6, 2010]
    hello everyone,1998 1.8t agu engine,so i took my a3 off the road as it failed mot on exhaust emissions,asuming it was the turbo seals or turbo shaft,i just bought a new k03s at a cost and replaced it,car is running again, started 1st time after priming the engine,,new oil,oil filter,antifreeze,oil n water turbo lines,..but its still smoking more than normal? sounds abit "tappy" on top end...its due a cam belt change,but need to find cause of smoking,

    so ive searched the site for causes found afew things,eg stem seals n valve guides...also found worn piston rings...=(....before the new turbo,the car ran fine and boosted great always started no promlems,......car runs now with new turbo ive not drove the car,only had it on tick over,pushed it 2500rpm and lots of oil from exhaust still???any one out there that can help please..thanks
    #1
  2. Ads

    Ads

    [Oct 22, 2014]

  3. s3dave
    Offline

    s3dave TFSI Hybrid Supporter

    Joined:
    Nov 11, 2009
    Messages:
    10,120
    Likes Received:
    729
    [Oct 6, 2010]
    That could be an expensive lesson, you are best finding the cause before swapping bits, but i guess you know that now.... sounds like valve stems or piston rings
    #2
  4. S3 Paul
    Offline

    S3 Paul Well-Known Member Regional Rep

    Joined:
    Oct 27, 2006
    Messages:
    2,785
    Likes Received:
    76
    [Oct 6, 2010]
    If the turbo went ... the exhaust maywell be full of old engine oil.
    Takes quite a while to clear, even when driven,
    Is the tapping noise from the head? the timing belt area?
    I had the tensioner start to fail on the timing belt and it ratteled like hell.
    I would check the belt and tensioner, drop the oil and see what things are like then.
    What mileage is on the car?
    #3
  5. Prawn
    Offline

    Prawn My other car is a MINI!!!!

    Joined:
    Dec 8, 2006
    Messages:
    9,747
    Likes Received:
    1,461
    [Oct 6, 2010]
    also worth noting that an AGU with a ko3S fitted ought to be mapped to suit the turbo change....
    #4
  6. E4 FENN
    Offline

    E4 FENN mr fenn

    Joined:
    Sep 13, 2009
    Messages:
    47
    Likes Received:
    1
    [Oct 6, 2010]
    hey s3 paul thanks,yes tapping noise is timing belt area i think,,the miles is around 90000....only put the oil in lastnight??..what oil do you use? so maybe the exhaust has oil in it,...i will have a look at belt tensioner too......s3dave yes i know lol =)
    #5
  7. E4 FENN
    Offline

    E4 FENN mr fenn

    Joined:
    Sep 13, 2009
    Messages:
    47
    Likes Received:
    1
    [Oct 6, 2010]
    yes sorry its been mapped b4 to suit old k03s ,so it needs re-maping???
    #6
  8. S3 Paul
    Offline

    S3 Paul Well-Known Member Regional Rep

    Joined:
    Oct 27, 2006
    Messages:
    2,785
    Likes Received:
    76
    [Oct 6, 2010]
    I use a thicker grade than standard 10/60w but that was because i used to drive hard.
    Take the timing belt cover off ( top part) and see if the sprung loaded tensioner arm will move with your fingers... mine did, the rattle was the arm slapping back and forward.
    #7

Share This Page