1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Welcome To LandyZone!

    LandyZone is the biggest Land Rover forum on the net. We have plenty of very knowledgable members so if you have any questions about your Land Rover or just want to connect with other Landy owners, you're in the right place.

    Registering is free and easy just click here, we hope to see you on the forums soon!

Oil leak from rear diff breather

Discussion in 'Land Rover Freelander' started by Kungfu0210, Mar 12, 2009.

< Previous Thread | Next Thread >
  1. Kungfu0210

    Kungfu0210 New Member

    Joined:
    Jun 18, 2008
    Posts:
    124
    Likes Received:
    20
    Location:
    Warwickshire
    Hi all,

    Bit of a weird one this and i'm trying to get my head round what has happened, so any suggestions would be great.......

    I got back from a 45min drive, mainly motorway and then 5mins of housing estate. As I pulled onto the drive I could smell diff oil (my mrs thought it was very sad that I knew the oil by smell !)

    It was night so the next morning I took a look underneath and noticed that the back of the car had oil residue where it had been vented out of the rear diff breather tube. To the extent that there is even some light spray up the rear door.

    Now..... I'd got badly worn front tyres last week to an illegal level on the inside edge (they had lasted 64,000 miles though so not all bad). ATS didn't have Synchrones any more only Latitude so I went for those as they are 30% discount if you buy 4. But they only had two in stock so I had them fitted to the front on Saturday and then they ordered the two for the back to come later this week.

    So it ocurred to me yesterday that maybe the diff issue was that they were diiferent sizes, and sure enough despite the fact that both Synchrone and Latitudes are 225 55 r17, the actual measurement from floor to top of tyre is 4cm different between them !

    Thus i'm running the back axle with tyres that are 4cm diameter smaller than the front, which i'm guessing has upset my rear diff, caused it to overheat and blow the excess pressure and oil out of the breather.

    Please can anyone tell me if that sounds feasible as a root cause ? The rear axle will be going faster than the front so i'd think that I may also have upset my VCU ? Luckily the other two Lats are now in stock and i'm having them fitted today. Tippex test of the VCU next methinx !

    Ta, Rick.
     
  2. Darmain

    Darmain Well-Known Member

    Joined:
    Nov 25, 2008
    Posts:
    2,366
    Likes Received:
    6
    Location:
    Chippenham, Wiltshire
    Good move on the tyre change. Your higher rear axle speed will cause locking of the VCU and hence back drive the IRD. Transmission wind up here we come. The rear diff and the IRD will both take a hammering. Get your tyres sorted and try again. Worth checking your diff oil level obviously.
     
  3. willo

    willo Well-Known Member

    Joined:
    Aug 2, 2005
    Posts:
    2,102
    Likes Received:
    13
    Location:
    Belgium
    Where it is clearly written in the owner's manual:

    New tires always on the back?
     
  4. Dann

    Dann Active Member

    Joined:
    Feb 11, 2008
    Posts:
    545
    Likes Received:
    6
    Location:
    Middle Earth
    Excellent thread which should serve as a warning and reminder to others. P.s hope everything is ok now.D..
     
  5. Darmain

    Darmain Well-Known Member

    Joined:
    Nov 25, 2008
    Posts:
    2,366
    Likes Received:
    6
    Location:
    Chippenham, Wiltshire
    Actually a good point Dann, is worth a moderator making this thread sticky as a very useful warning to all Freelander owners?
     
  6. Northern Irelander

    Northern Irelander Well-Known Member

    Joined:
    Jul 25, 2006
    Posts:
    2,890
    Likes Received:
    16
    Location:
    N. Ireland
    This should never have been an issue, name and shame the tyre depot........muppets. It would have not been an issue if the tyre were a least the same profile.

    Do they know anything at all about tyres?
     
  7. Mark2

    Mark2 Active Member

    Joined:
    Jul 16, 2007
    Posts:
    484
    Likes Received:
    5
    4cm is a huge difference - in old money that is about one and three quarter inches !!!!

    Can't be right ?


    Certainly would bugger the drivetrain.
     
    Jason101 likes this.
  8. Kungfu0210

    Kungfu0210 New Member

    Joined:
    Jun 18, 2008
    Posts:
    124
    Likes Received:
    20
    Location:
    Warwickshire
    My first sticky - yey ! That means I must have done somthing really stupid ! ;)

    Tyres were exactly the same profile 225 55 r17, and even the same make Michelin but the reality of the measuring tape showed a difference of 4cm diameter approx. It didn't help that they left the new pair pumped up at 39psi whereas my old rears were running 29psi.

    New rears now fitted as well, and so far all seems ok. Plan for tomorrow is the tippex test just out of interest.....

    Thx for the replies, Rick.

    PS... You're right Willo, it does say in the owners manual to fit new tyres to the back, just read it now.
     
  9. Darmain

    Darmain Well-Known Member

    Joined:
    Nov 25, 2008
    Posts:
    2,366
    Likes Received:
    6
    Location:
    Chippenham, Wiltshire
    Kinhell, 39 PSI, they should be 30!! What muppets did your tyres? Glad you're sorted though. Just hope your Hippo is okay for it.
     
  10. ming

    ming SPACE TWOT

    Joined:
    Apr 13, 2005
    Posts:
    11,962
    Likes Received:
    795
    Location:
    PLANIT ZOG
    To be honest i personally don't believe in the best tires to rear bit. . . .the front ones always wear first,and provided you've got all the same type [and make] it don't make any difference if yer front ones are worn a little bit then swap em to rear [evens out] the problem is if they are badly worn. . . . . .just my opinion , and yes i do myself without any problems :) :) :)
     
  11. willo

    willo Well-Known Member

    Joined:
    Aug 2, 2005
    Posts:
    2,102
    Likes Received:
    13
    Location:
    Belgium
    Is this real or is it just a mirage ?????:D:D:D






    (The fact the post came from ming that is .......:p)
     
  12. Darmain

    Darmain Well-Known Member

    Joined:
    Nov 25, 2008
    Posts:
    2,366
    Likes Received:
    6
    Location:
    Chippenham, Wiltshire
    MING!!! Where have you been?? The tractors are everywhere, get your blaster gun at the ready. :D

    Seriously, good to see you around again.
     
  13. ratty

    ratty I'm not special I'm limited edition Global Moderator

    Joined:
    Sep 18, 2007
    Posts:
    34,277
    Likes Received:
    52
    Location:
    Stuck in a ditch somewhere in Somerset
    I heard the tratter boys took him hostage and made him do norty fings AGAIN!!!!:eek::eek::eek:

    I also heard he escaped by covering himself in KY jelly and squeezing himself through the bars of the blue oyster club

    :D:D:D

    :welcome2:back Ming:)
     
    Last edited: Mar 25, 2009
  14. Darmain

    Darmain Well-Known Member

    Joined:
    Nov 25, 2008
    Posts:
    2,366
    Likes Received:
    6
    Location:
    Chippenham, Wiltshire
    Flippin heak Ratty, don't you sleep or summat?

    Ming is a master of escapology, Mrs Ming taught him all he knows.
     
  15. ratty

    ratty I'm not special I'm limited edition Global Moderator

    Joined:
    Sep 18, 2007
    Posts:
    34,277
    Likes Received:
    52
    Location:
    Stuck in a ditch somewhere in Somerset
    Not as often as I'd like:eek:

    It's where he practices sneaking out the dungeon when she goes shopping.:p
     
  16. willo

    willo Well-Known Member

    Joined:
    Aug 2, 2005
    Posts:
    2,102
    Likes Received:
    13
    Location:
    Belgium
    Is the expression "poor sod" appropriate here ?? (I just ask this in view of my language barrier).:welcome2:
     
  17. ratty

    ratty I'm not special I'm limited edition Global Moderator

    Joined:
    Sep 18, 2007
    Posts:
    34,277
    Likes Received:
    52
    Location:
    Stuck in a ditch somewhere in Somerset
    I know what you mean. I don't speak Zogonese either.:D:D:D
     
  18. willo

    willo Well-Known Member

    Joined:
    Aug 2, 2005
    Posts:
    2,102
    Likes Received:
    13
    Location:
    Belgium
    Tnx. :):):)
     
  19. ming

    ming SPACE TWOT

    Joined:
    Apr 13, 2005
    Posts:
    11,962
    Likes Received:
    795
    Location:
    PLANIT ZOG
    :p:p:p
     
  20. hightowerz

    hightowerz New Member

    Joined:
    Jun 8, 2008
    Posts:
    6
    Likes Received:
    0
    Location:
    dudley
    "spot on" ur car that is
     
< Previous Thread | Next Thread >