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  1. #1
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    Top end tapping/rattle

    Hi guys

    8 weeks ago I got in my S3 after a long drive (the morning after) and the attached video is what I was greeted with, which was lovely! YouTube - Broadcast Yourself.

    It's been at a VAG specialist for 6-7 weeks now and following has been changed:
    • Oil pump
    • Cam belt and tensioner
    • 4 hydraulic lifters which seemed to be a bit loose
    It's still the same! I'm getting really desperate now and want my car back so just wondered if anyone had any ideas as to what it could be? I'm releuctant to take it to Audi for obvious reasons and don't want to drive it to another garage for risk of further damage.

    The oil spray bar is working and oil seems to be getting through fine so we're really stumped.

    Any comments appreciated.

    Many thanks.

    Chris.
    Last edited by fishers3; 22nd October 2011 at 09:36.

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  3. #2
    s3schofield's Avatar
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    video inop
    Audi S3 8L 2001 imola yellow autobahn tip, heatshield, metal mesh cone filter, apr r1 DV, REVO stage1, SPS box, Weitec coilovers, forge short shift kit, bosch aero wipers, 20mm rear spacers Wanted 3"Dp Decat rear arms pm me

    my progress thread http://www.audi-sport.net/vb/a3-s3-f...ss-thread.html

  4. #3
    Alex C's Avatar
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    we need a password for the video.

    Could it be the cam chain tensioner?
    Alex S3 AMK
    Bilstein B8s, H&R Springs, Neuspeed ARBs, Genuine 18" BBS LMs & LCR Brembos

  5. #4
    got an S3 8L: living the dream

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    couldnt see the video

    possibility of little end bearings?......any shiny bits in the oil?
    2002 S3 8L AMK

  6. #5
    s3schofield's Avatar
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    cam chain tensioner possibly
    Audi S3 8L 2001 imola yellow autobahn tip, heatshield, metal mesh cone filter, apr r1 DV, REVO stage1, SPS box, Weitec coilovers, forge short shift kit, bosch aero wipers, 20mm rear spacers Wanted 3"Dp Decat rear arms pm me

    my progress thread http://www.audi-sport.net/vb/a3-s3-f...ss-thread.html

  7. #6
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    Soz try again YouTube - Broadcast Yourself. , also just reach A 100k , revo last year ,

  8. #7
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    YouTube - Broadcast Yourself. , soz there you go , also it just reached 100k , revo last year

  9. #8
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    Bump

  10. #9
    XFi
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    It could be the injectors, my top end is quite tappy but I can tell it's the injectors and not the lifters.

  11. #10
    S3 TAM's Avatar
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    Have you clean/replaced the oil pick up pipe?
    Revo Stage 2 with all the Gear
    BHP = 274 / Torque = 293




  12. #11
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    Yes the oil pick up was check and cleaned when the oil pumP was change , cant see it being the timming chain tensioner , not cuming from that side of the engine , just rang the stealers to see how much they wud charge to spend a hour on it , they wanted 126 for the first hour and 105 after

  13. #12
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    update: well then, i decided to take the engine apart myself to save paying any more labour , took me 3 hours to get the head off yesterday couldn't see anything with head, took the sump off this morning and removed the piston closest to the gearbox and found there was a 15 degree bend in the con rod .... oh dear , how the engine was running still with no miss-fire etc etc , so glad ive found the problem , order new part tomorrow, then put back together Saturday .,,.,.,.,.,., booooyaaaaa

  14. #13
    Lee172's Avatar
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    At least you have found the problem, are you using upgraded parts or standard?

  15. #14
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    Standard I rkn , don't intend to up the bhp

  16. #15
    DaveA3's Avatar
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    u gonna change the others or just 1?

    Audi A3 1.8T Sport (AGU) - 2000
    Engine: Carbonio CAI/Jetex JR Hybrid Induction, Forge 007p DV, Forge TIP, Longlife S/S Custom Exhaust system, R-Tech Stage 1 Remap, Creation Motorsport Boost Pipe Kit.
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  17. #16
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    Just one with a good second hand source , I've notice a dent on the bottom of the piston where it has hit the crank , guna need new piston too and a set of piston rings ,

  18. #17
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    Bit of an update for your interest, con rod bent from water being sucked in on a very wet motorway journey. Pretty much there now but having a bit of a problem putting the camshafts back in to be timed properly. I've done a quick search but can't find anything. Does anyone know if there's a certain way this should be done in case i'm missing a trick? Ta

  19. #18
    got an S3 8L: living the dream

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    Quote Originally Posted by fishers3 View Post
    Bit of an update for your interest, con rod bent from water being sucked in on a very wet motorway journey. Pretty much there now but having a bit of a problem putting the camshafts back in to be timed properly. I've done a quick search but can't find anything. Does anyone know if there's a certain way this should be done in case i'm missing a trick? Ta

    i could email you some elsawin pages as a pdf if that helps......if you pm me your address / engine code etc
    2002 S3 8L AMK

  20. #19
    got an S3 8L: living the dream

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    Hope this doesn't clog the internet up for everybody!!!:









    2002 S3 8L AMK

  21. #20
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    thanks for that great help , put it back together this morning and cant turn the engine by hand , wouldn't move at all , guna go out and rechecked my timing

  22. #21
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    been trying to put the vernier pulley back on with the belt still attach and not slacken to get away with pissing around with the tensioner , sum how ive managed to round off the notch on the vernier pulley , anyone got one lying around ? or where can i get one ? Can I use any 1.8t pulley
    Last edited by fishers3; 13th November 2011 at 16:54.

  23. #22
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    im going to take the cams back out and start again , so if i set the crank pulley to tdc , then re fit the camshafts with the tdc timing mark on the chain side spot on , will this work because im not 100% sure that any of my timing marks are correct ....any help is appreciated
    Last edited by fishers3; 13th November 2011 at 16:37.

  24. #23
    s3dave's Avatar
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    Have you used the original shell from the bent rod or new ones? Credit for having a go but be careful it does not end in disaster, if the engine wont turn over there is something badly wrong...

  25. #24
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    Nope use all new big end bearings , I think it's to do with my timing , once the cams are out again is it possible to set the crank On tdc mark , then put the cams back in with mark spot on Up top , is this possible ???

  26. #25
    "Stick a V8 in it!"

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    Take the cams and spark plugs out, and see if the bottom end will turn over freely.

    If it doesnt, you've done something wrong when fitting the rod/piston/bearing.

    When i fitted my cams, i pushed the engine about 30degrees past TDC. That way, the valves wont collide with anything as the pistons are part way down the bore. Once the cams are in and set to TDC, you can carefully wind the bottom end back to TDC and fit the belt.

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  27. #26
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    That's we're ive gone wrong , just dOne it like I'd do a cambelt set both top and bottom to tdc , but were I've taking the cams that changes everything

  28. #27
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    Thanks for ur help , makes alot more Sense now

  29. #28
    Alex C's Avatar
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    the mechanic in your video sounds like Justin Lee-Colins
    Alex S3 AMK
    Bilstein B8s, H&R Springs, Neuspeed ARBs, Genuine 18" BBS LMs & LCR Brembos

 

 

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