Oil return on 16V head.... PROBLEM

  1. Frequent Poster Joined: Apr 2012 Bradford/Leeds Posts: 775 03 R53 Mini Cooper S with a little extra going on
    #1
    Bit of a curious issue, got the car fully on the road today.

    And all good, managed to do some mapping and getting it running nicely..

    Gotta admit open throttle bodies and an un baffled exhaust sounds pretty sick lol

    anyway...
    when i got back from an hour out, i pulled away from a junction with a little vigour wheels a spinning and suddenly smelt the dreaded hot oil smell, car still drove fine, didnt feel like id broke anything, just a stick of hot oil

    pulled into driveway, got out to find oil on the floor and immediately thought OH SHIT

    popped hood to find the oil return pipe had blown out of the hole on the side of the head ?

    so questions
    why would this blow out?
    im monitoring oil pressure, hits 4.5 to 5bar at 7000 rpm's, 1 to 1.5 at idle of 1200 rpm

    return pipe is bolted solid, just the fitting is loose as owt... just flops out?

    so idea... start a fresh and fit new pipe fittings 1/2" NPT to tap head then run a new braided return line and fit that to return pipe

    another quickie.....
    I've used one of the cam oil galley ports for oil pressure, is the other seeing the same oil movement for oil temp?
  2. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #2
    might sound like a silly question....but what oil return...where are your returning the oil too?
  3. Frequent Poster Joined: Apr 2012 Bradford/Leeds Posts: 775 03 R53 Mini Cooper S with a little extra going on
    #3
    runs from the head to the block down by dipstick
  4. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #4
    isnt that just a breather?
  5. Saxperience Forum Bum Joined: Dec 2009 Uckfield, East Sussex Posts: 3362 Citroen saxo 1.4 furio
    #5
    The little "N" shaped pipe? It sounds like a breathing problem if it just blew out. Has it been forced out, ripping the thread out with it? or has it just come off.
    If it has been forced out, make sure that all your breathers are clear and haven't been blocked or even blocked off accidentally.
  6. Frequent Poster Joined: Apr 2012 Bradford/Leeds Posts: 775 03 R53 Mini Cooper S with a little extra going on
    #6
    all i know is alot of oil came out in one go lol and it returns via the pipe to the block
  7. Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B
    #7
    Quote:
    Originally Posted by adamskiTNR View Post
    The little "N" shaped pipe? It sounds like a breathing problem if it just blew out. Has it been forced out, ripping the thread out with it? or has it just come off.
    If it has been forced out, make sure that all your breathers are clear and haven't been blocked or even blocked off accidentally.
    this was why i asked

    when you said return i instantly thought of the "feed" ppl use to take the oil feed for turbos as im sure you had a thread on a it leaking form there not long back?

    defo sounds like a breathing issue
  8. Frequent Poster Joined: Apr 2012 Bradford/Leeds Posts: 775 03 R53 Mini Cooper S with a little extra going on
    #8
    It's this pipe
  9. Frequent Poster Joined: Apr 2012 Bradford/Leeds Posts: 775 03 R53 Mini Cooper S with a little extra going on
    #9
    not sure where it can get more breath lol cam covers are now the new type with individual breathers...
  10. Saxperience Post Whore Joined: Dec 2004 Grimsby United Kingdom (England) Posts: 5489 SUPERCHARGED saxo vts
    #10
    sounds like the oil drain from the head to the sump. they are not the best "push in" fitments. try a new one from dealers as they wear easily. if not bond/glue it back in but dont block it off!
  11. Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra
    #11
    As above, if it's the breather pipe I'm thinking of, it's just a push in fitment into the side of the head and the seal holding it in place can wear away quite quickly, I've had problems with it in the past and eventually had to re-seal it using strong glue
  12. Saxperience Post Whore Joined: Jan 2007 Shropshire Posts: 9994 Moonstone Blue 106 GTi
    #12
    If its the one I am thinking of then it is an easy fix



    you see this going from the side of the head and then back down to the sump? you see the metal part at the front when off looks like the below



    the metal part usually gets clogged up with shit and cause pressure build up take this off clean it out with brake and clutch cleaner then refit make sure the part that goes back in the head at the back you put a bead of silicone around it as they are only push fit as standard and are prone to leak.

    The part you have pictured come out all the time again small bead of silicone will sort it
  13. Newbie Joined: Mar 2014 Posts: 1
    #13
    Hi I av the as act same problem iv owned
    My 106 for 2 years avent ad 1 problem
    With it till I jest ad my cat cams 708s fitted
    1st they started leakin from the cam case
    As wazent sealed propyl done that and now
    My oil return pipe as blowon off would u no
    Y that is
  14. Established Member Joined: Jan 2008 Scotland Posts: 1764 Because racecar
    #14
    Quote:
    Originally Posted by Bizzy12 View Post
    Hi I av the as act same problem iv owned
    My 106 for 2 years avent ad 1 problem
    With it till I jest ad my cat cams 708s fitted
    1st they started leakin from the cam case
    As wazent sealed propyl done that and now
    My oil return pipe as blowon off would u no
    Y that is
  15. Infrequent Poster Joined: Aug 2012 Wirral Posts: 185 E46 330d - Saxo Vts
    #15
    How come it can't be blocked off ? Will the oil not return to the sump via the internal journals