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Thread: 300Tdi engine oil leaks

  1. #11
    Join Date
    Jan 1970
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    Quote Originally Posted by Taz View Post
    O ring under the oil thermostate cover went in mine
    Where's the oil thermostat cover?

  2. #12
    Join Date
    Jan 1970
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    Douglas Park, NSW
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    Quote Originally Posted by wally View Post
    I did the rear main recently when I had the gearbox out.
    Did you replace the rear main bearing cap T seals at the same time?
    Scott

  3. #13
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    Quote Originally Posted by Scouse View Post
    Did you replace the rear main bearing cap T seals at the same time?
    Probably not. You've lost me a bit there. I don't think that's the source of any of the oil though.

  4. #14
    Join Date
    May 2007
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    in the wild New England, NSW
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    FWIW to fix mine I had to replace oil cooler lines (abt $70 ea) and seal the vacuum pump gasket area

    A 22mm/24mm flare nut spanner is handy for the cooler lines but you can get away with open enders & shifter.

    Oil cooler lines can be repaired by different methods - probably the easiest is brazing barbs on to take a hose with clamps - I just replaced the 12yo orig lines for convenience - if they last another 12 years I'll be happy with that
    Last edited by 87County; 24th August 2010 at 12:03 PM. Reason: spellling!

  5. #15
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    Jan 1970
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    Quote Originally Posted by wally View Post
    Where's the oil thermostat cover?
    It's directly behind the oil cooler line that connects onto the filter head at 90* to the block.
    Or the easiest one to get to for a change

    Undo the hose connector, then undo the two bolts holding the t/stat in.
    Be careful, the thing is under pressure (spring) and bit swill fly everywhere if you aren't careful.

    I agree with Gumnut, it's easiest to just use genuine O rings for the cooler line fitting and t/stat, they cost bugger all.

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