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Newbie needs help

Discussion in 'A4/S4 forum(B5 Chassis)' started by bigdave242, Dec 30, 2013.

  1. bigdave242
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    bigdave242 New Member

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    [Dec 30, 2013]
    Hi all I'm reasonably new to audi and to be honest don't know why I've never driven one before :) had my a4 b5 1.8t Quattro for just over a year AJL engine code and my oil pump failed now I need a new cylinder head and can't find one with same engine code :-( so just wondered if Anyone on here could tell me if I can use another I've been told that there might be so just thought I'd ask on here

    thanks in advance for any help
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  3. Oranoco
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    Oranoco Well-Known Member

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    [Dec 30, 2013]
    I await correction but see no reason why you can't use any one of the 1.8T heads. iirc the ports on the AEB head are larger.

    How comes it needs replacement as they tend to last well.
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  4. bigdave242
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    bigdave242 New Member

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    [Dec 30, 2013]
    There's a very loud knockin noise comin from the top end the mechanic that took a look said it's cause the oil pump failed the head wasn't getting any oil and it's goosed the cam shafts and part of the head. could there be another reason for the noise from the top end
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  5. Bradderz_1988
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    Bradderz_1988 Dont replace it, Upgrade it !!

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    [Dec 30, 2013]
    Blocked cam chain tensioner gauze or worn seals.

    AEB head is identical to the AJL !!
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  6. Bradderz_1988
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    Bradderz_1988 Dont replace it, Upgrade it !!

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    [Dec 30, 2013]
    Also you might get away with just fitting a new chain and tensioner rather than swapping heads over !!
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  7. bigdave242
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    bigdave242 New Member

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    [Dec 30, 2013]
    Would it make the loud knockin noise with the blocked cam chain tensioner I did get told that it was only making the noise due to lack of oil getting to the tensioner but the mechanic that had a look at it (without stripping it) said it needs a new head as he's fixed 3 or 4 with the same problem could this just be him trying to get more money
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  8. matt66604
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    matt66604 Member

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    [Dec 31, 2013]
    It's quite common for the oil to sludge up and block the oil pump pick up. I've had this before on my a3 1.8t.. If the cams have run dry and "picked up" on the head I'm afraid it's time for a new head... Either AJL or AEB... Both are large port heads.. I would buy a new cam chain and tensioner for the replacement head definitely along with new oil pump etc...
    First thing I did when buying my A4 was put a new oil pump on it..
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  9. matt66604
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    matt66604 Member

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    [Dec 31, 2013]
    Audi had a recall on these also iirc... You had to take the centre cam cap off and check for scoring and signs I pickup. An if necessary it would get a new oil pump and brand new head...
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  10. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    Thanks very much Matt I'll replace the head as well then been searching for an AJL head and seems to be mission impossible lol are the AEB heads any easier to find
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  11. matt66604
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    matt66604 Member

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    [Dec 31, 2013]
    The aeb heads are a bit easier to find.. If you get a second hand one if recommend sending it to get pressure tested and checked at a head shop.. Won't probably cost too much but it's better to be safe than do the job twice
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  12. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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  13. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    Yeah mate would be gettin sent in to get skimmed and tested before I do anythin with it anyway thanks
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  14. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    Don't be tellin me that byzan lol would mine be the k03s or the k03 lol
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  15. Broken Byzan
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    [Dec 31, 2013]
    K03 was only turbo ever fitted to A4, same unit as on an 150 bhp AEB engined car. Passats, A6's and A4's came with that designation.

    Turbo is normally first thing to starve of oil, then the head, I assume you had the oil can / light showing up as soon as you got past 1500 rpm?
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  16. matt66604
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    matt66604 Member

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    [Dec 31, 2013]
    Not necessarily.. Only half of the time I've worked on cars with these problems the turbo is unserviceable..
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  17. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Dec 31, 2013]
    That's a higher % of serviceable turbos that I have seen. Even if they don't fail immediately they tend to go down quite quickly after due to the accelerated wear a 20k spinning shaft without lubrication v bronze bushes
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  18. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    No was on the motorway doin just over 60 the light came on two seconds later a very loud knockin noise started so I pulled over and stopped and got the car recovered as soon as I stopped the car cut out only time it was started after that was for the mechanic to hear it
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  19. Broken Byzan
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    [Dec 31, 2013]
    might be lucky.. but catastrophic head failure is unusual in this few secs,

    Fingers and toes crossed for you.

    AEB heads are cheap enough now, around 100 notes I'd imagine. Once upon a time they fetched a premium due to them being large port, but most people requiring them have acquired them and demand has dropped
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  20. matt66604
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    matt66604 Member

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    [Dec 31, 2013]
    Sounds like the oil pump has failed instead of the pickup pipe blocking up..
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  21. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    That's what I had thought Matt had read about the pick up pipe problems but the only difference was my light hadn't been flashin on and off or been on for a while car was runnin gray up until this happened had it for about a year now and never had any problems with it so guess there had to be something go wrong lol
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  22. Broken Byzan
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    [Dec 31, 2013]
    avoid febi pumps, get kobleschmidt as the premium OEM brand or topran as a budget one. Febi seem to be having some issues currently causing a few people i know to file claims for failure.GULP
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  23. matt66604
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    matt66604 Member

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    [Dec 31, 2013]
    Ah my bad... Yeah I've used topran pumps with no issues ... 75k later and no issues. As Byron said.. Avoid febi... I would buy genuine I possible
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  24. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    I've already got the pump had read about the problems with the Febi ones when I was searching for the problem with the oil pump so bought the torpan one
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  25. bigdave242
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    bigdave242 New Member

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    [Dec 31, 2013]
    Just done a quick search for AEB heads I take it I will need the one with the egr
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  26. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Jan 1, 2014]
    AEB heads dont have EGR. just look for a 1997 - 2001 ish aeb head fitted to the afore mentioned cars and you'll be golden
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  27. bigdave242
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    bigdave242 New Member

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    [Jan 1, 2014]
    That's great mate thank very much for all your help much appreciated
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  28. Dimokslis
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    Dimokslis Member

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    [Jan 4, 2014]
    Whereas the topic will not explain anything precisely, I will use it for my question, as I am new with Audi petrols too.
    Will complete exhaust fit on my AJL taken from AWT? If not any parts of the exhaust would fit? Do the both cars have to be Quattro's as well? What is price range for a used exhaust for these engines?
    Thank you for your help. :)
    #27
  29. Bradderz_1988
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    Bradderz_1988 Dont replace it, Upgrade it !!

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    [Jan 4, 2014]
    Any 1.8T cat will fit altough some have downstream oxy sensor port so will need a bung in there, as for down pipe its specific to the B5 TQS and the US AEB quattro, exhaust sytem is specific to the B5 altough it is possible to mod the centre pipe of the S4/RS4 system to fit the TQS !!
    #28

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