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oil leak in my 300 TDi

Discussion in 'Defender 90 / 110 / 130' started by rallix, Jul 22, 2013.

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  1. rallix

    rallix New Member

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    So I noticed a leak of engine oil and it's bad enough that I need to get it seen to because I have to keep refilling. It seems to come from or above the oil filter (the sides of it are covered: the white "jar" the oil filter, right?) and from there it drips onto the front diff or the structural bits just behind the front diff (the anti-roll bar rod?) and then onto the floor. It's not that bad if the engine is off but once the engine is started, it's a steady drip. What should I be looking at?
     
  2. Litch

    Litch Well-Known Member

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    First thing to check is the oil-filter, is it screwed on tight (but not overtightened)?
     
  3. Thor1950

    Thor1950 Well-Known Member

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    make sure you have not got the old oil seal from the old filter still there. Some times the old o-ring will come off the old oil filter when changing and when ne oil filter is put on it will not sear properly and will leak. next look where the filter screw on to that might be lose also. but always remember to lube the o-ring of a new oil filter before installation, get it hand tight and then another 1/4 turn should be good. over tighten and you could deform the o-ring and have a leak, also it is a real bitch to get off on next oil change. They seam to get glued on as if magic if over tightened
     
  4. rallix

    rallix New Member

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    i had a chance to clean under the car then started it up and I can see 2 thin streams of oil that appear to come from the 'neck' of the oil filter and run down the side of it. So I think you chaps are right. If I get a new one, ERR3340, I think it says on it (hard to read at that angle but Google thinks that's a Landy oil filter) does that come with all the sealing rings and gaskets I would need? Otherwise I don't know what those parts are called. I'll need a chain wrench too but Halfords have that for a fiver!
     
    Last edited: Jul 22, 2013
  5. Thor1950

    Thor1950 Well-Known Member

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    oil filters come with o-ring on them
     
  6. rallix

    rallix New Member

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    Ah that's great - thank you for the advice! It is much appreciated.
     
  7. Grimmer

    Grimmer THE Winner

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    Does sound like the old o-ring/seal has been left on;);) The crazy Merkin may well be right:D:D:D:p
     
  8. Thor1950

    Thor1950 Well-Known Member

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    Thank you grimmer;):D
     
  9. Landyfox

    Landyfox Well-Known Member

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    ^+1 Good call!
     
  10. rallix

    rallix New Member

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    How long would the filter last? I believe it has the original still, from date of manufacture N reg. Would that be credible?
     
  11. Grimmer

    Grimmer THE Winner

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    Well I change mine roughly twice a year, I use cheap oil and change it regularly;););)
     
  12. Litch

    Litch Well-Known Member

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    Depends on mileage and type of use but I also change mine twice a year (use Magnatec).

    Probably no need for a wrench and never use one to tighten.
    I tighten & untighten mine by hand but get an excellent grip by wearing latex gloves, the grip these give is excellent. There is a chance you might need a wrench to remove the old filter but try it by hand first.
     
  13. sprogthedog

    sprogthedog Well-Known Member

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    If not the oil filter, check the vacuum pump.;)

    Sits just above the oil filter.
     
  14. jamesmartin

    jamesmartin Well-Known Member

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    usual cause of oil leak above filter on 300tdi is oil cooler pipes
     
  15. Scrawf

    Scrawf Member

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    Have you check the oil return pipe above on top of the engine? Bet you it's perished. That's why it leaks when the engine is running. Only a few quid to get a new one and a ten minute job to replace it!

    Scrawf
     
  16. Thor1950

    Thor1950 Well-Known Member

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    Look at the north american oil cooler for Defenders, they do a much better job;)
     
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