Leaking Rear Differential
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Thread: Leaking Rear Differential

  1. #1
    NKG
    NKG is offline
    FRESHMAN ROVER
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    March 25th, 2008
    Location
    Hampshire UK
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    Leaking Rear Differential

    Just wondered if anyone has seen this before. My 93 Range Rover Classic has a tiny oil leak from the rear pan, where there is no obvious place to leak from. The pan is welded on. The filler plug is dry. It seems like the diff might be split or rust has gone right through. There is no denying the leak so will have to do something. Just wondered if this might be common at this age.

    Thanks
    1993 LSE 4.2ltr

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  3. #2
    FRESHMAN ROVER IchWill's Avatar
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    August 16th, 2018
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    Re: Leaking Rear Differential

    Check the seal, usually won't leak unless it's being driven. Spray down the 3rd member with brake clean, recheck in a few days. Sounds like the pinion seal has started to seep, it's 26 years old, things are gonna start to leak. Pinion is tilted slightly up, so as when the seal leaks fluid will run down from the front, along the bottom and settle on bottom of axle/3rd member housing, giving the appearance of a leaking/cracked differential housing.

  4. #3
    SENIOR ROVER
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    June 11th, 2016
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    northern va 22003
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    Re: Leaking Rear Differential

    Quote Originally Posted by IchWill View Post
    Check the seal, usually won't leak unless it's being driven. Spray down the 3rd member with brake clean, recheck in a few days. Sounds like the pinion seal has started to seep, it's 26 years old, things are gonna start to leak. Pinion is tilted slightly up, so as when the seal leaks fluid will run down from the front, along the bottom and settle on bottom of axle/3rd member housing, giving the appearance of a leaking/cracked differential housing.
    the O/P is mentioning the housing it self, not the hogs head or seal. yes I have seen leaks on the housing thru tiny developed fissures, cracks, rust holes and incomplete welds. some can be patched with jbweld, others can be welded sealed. any way you go the area needs to be cleaned of rust and paint as well as dry from any oils. clean and monitor before deciding on repair procedure.
    2k p38 4.6
    95 lwb 4.6
    01 d2 4.0

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  6. #4
    NKG
    NKG is offline
    FRESHMAN ROVER
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    March 25th, 2008
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    Re: Leaking Rear Differential

    ...thanks guys. Yes a good clean up and then watch and see if I can find the actual leak. That is the next task.

    Thanks
    Neil
    1993 LSE 4.2ltr

  7. #5
    FRESHMAN ROVER
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    July 25th, 2014
    Location
    Sutton, Cambridgeshire
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    Re: Leaking Rear Differential

    I had this on my lse, cleaned and fixed with metal filler.
    1997 P38 4.0 Se 2002-2013
    RRC LSE July 2014- now
    2006 Freelander ADV-TURER TD A 2008- now

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