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TD5 Oil Lake (Not a Spelling Mistake!)

Discussion in 'Defender 90 / 110 / 130' started by Tom591, Feb 11, 2019.

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  1. Tom591

    Tom591 Member

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    My 2004 TD5 has quite a major oil leak, and it is getting progressively worse.

    It now leaves a small lake under the car after it is parked.

    I thought it was the sump gasket, but I have found a pool of oil on the small shelf at the back of the engine. I have attached a picture of the location.

    This is above the sump gasket, so I assume it can't be that.

    It's not from the rocker cover gasket, or either of the camshaft seals on the front and back.

    Quite a lot of the oil ends up on the track rods (it is LHD, if that helps).

    Any ideas would be appreciated, thanks.

    694_engine_stripped.jpg
     
  2. 1988smithy

    1988smithy Well-Known Member

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    Turbo, exhaust downpipe flexi, mine split and spewed a load of shìte out, maybe exhaust manifold if you're sure it's not the rocker cover. Either of the oil filters?
     
  3. Tom591

    Tom591 Member

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    Thanks 1988smithy. But would those problems lead to an oil puddle?

    It's definitely engine oil, I have to top it up quite a bit if the car has been on a run.
     
  4. Scooby22

    Scooby22 Well-Known Member

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    As above plus Oil cooler gasket or filter. Centrifugal filter lid or maybe half moon seal at back of rocker cover but that's right at the back.
     
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  5. wireman

    wireman Well-Known Member

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    I had similar and it was the 'normal' oil filter not tight enough, not by much maybe less than an eighth of turn. give the area a clean then tweak the filter up.
     
  6. 1988smithy

    1988smithy Well-Known Member

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    Prob not, just thinking what's that side really. Oil filters and housings worth a closer look
     
  7. Andra

    Andra Member

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    Turbo oil feed look at that
     
  8. Gloskris

    Gloskris Member

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    I'm gutted for you and ecstatic as well because i'm experiencing the same issue with my 05 110, haven't had chance to delve deep into this.
    Rocker and sump gaskets have both been changed and the side of the engine block is moist.

    It's going to be a time consuming job this one but i believe its around the centrifugal area where the oil is coming from (not the housing itself).
     
  9. Interceptorxj

    Interceptorxj Well-Known Member

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    There is a steel tube/pipe from the bottom of the centrifugal filter housing to the sump which is sealed at each end with an 'O' ring IIRC. And an 'O' ring from the housing to the block.
     
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  10. Gloskris

    Gloskris Member

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    Yeah i haven't officially identified LQP100680 as being the source, but i presume there's a high possibility it is the root cause.
     
  11. Tom591

    Tom591 Member

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    Found the culprit!

    Thanks for all your help.

    It was a hairline crack in the oil filter housing (LPY100160). Next to the right-hand bolt.

    Can't think what caused it. I took it off when I was doing the exhaust gasket, and may have damaged it.

    Cheers.
     
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  12. 1988smithy

    1988smithy Well-Known Member

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    Overtightening of the bolt probably
     
  13. Tom591

    Tom591 Member

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    Looks like I bought that fancy torque wrench for nothing!
     
  14. 1988smithy

    1988smithy Well-Known Member

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    Depends what you torque it up to :p might be just been fatigued from previous filter changes, then if you've clattered it getting to the exhaust gasket...good that you've found it though and nice 1 for updating thread :)
     
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