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Thread: 300 Tdi Big Ends and VIN

  1. #1
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    300 Tdi Big Ends and VIN

    I keep reading here about problems with big end bearings in 98 300 Tdis.

    Sometimes there are vague references to a VIN range and even reference to WA VINs.

    Can anyone be more specific about the range of VINs within which the problem occurs?

    On a more cheerful or optimistic note, is there evidence of large numbers of 300 Tdis in that range reaching 300,000 without big end failure? Is it only a tiny number of engines in that range that have problems?

    1973 Series III LWB 1983 - 2006
    1998 300 Tdi Defender Trayback 2006 - often fitted with a Trayon slide-on camper.

  2. #2
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    Can't help you with a range, but can tell you that my 130 at 327K had the issue.
    WA VIN, engine s/n 16L656673B if that helps.

    Steve
    1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
    1988 120 with rust and potential
    1999 300tdi 130 single cab - "stock as bro"
    2003 D2a Td5 - the boss's daily drive

  3. #3
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  4. #4
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    98 300tdi

    hi my 98 110 has 355,000ks up replaced head gasket at 220,000ks, was blowing oil at no 4 recond the head, bore was perfect.
    have heard about the big end bearing thing don't know if its true or not
    I am fanatical about oil changes though, will watch with interest
    cheers.

  5. #5
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    Quote Originally Posted by isuzurover View Post
    Not many mention of VINs here - but some suggestions it applies to all 300s...?
    On the other hand, there is mention in one of those threads to the problem relating to just six months. Although it didn't say which six.

    Hearing of Mudder110's 355,000 km with no sign of the problem cheers me up a little.

    1973 Series III LWB 1983 - 2006
    1998 300 Tdi Defender Trayback 2006 - often fitted with a Trayon slide-on camper.

  6. #6
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    Might be the last 6 months of 98. My 98 110 did the big end bearings at 230k, ate the crank. TdiRick caught his (freaky bastard!) Both of ours are last 6 months of 98 build.

    Mine was getting full log book service every 10k without question.

  7. #7
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    Quote Originally Posted by vnx205 View Post
    On the other hand, there is mention in one of those threads to the problem relating to just six months. Although it didn't say which six.

    Hearing of Mudder110's 355,000 km with no sign of the problem cheers me up a little.
    No sign of a problem doesn't mean there isn't a problem though....
    The previous owner of my 130 was probably unaware the shells were delaminating too....

    For what it costs to replace them, I don't understand why anyone with a 98ish 300tdi would risk waiting waiting for symptoms to confirm if their vehicle is affected.
    Good chance a 300tdi sump at 300K+ is leaking a bit, so pull it off, throw in a new set of big end bearings (< $100) and seal the sump back up.
    2 jobs done at once.

    Steve
    1985 County - Isuzu 4bd1 with HX30W turbo, LT95, 255/85-16 KM2's
    1988 120 with rust and potential
    1999 300tdi 130 single cab - "stock as bro"
    2003 D2a Td5 - the boss's daily drive

  8. #8
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    big end bearing

    hi mine was registered may 98 maybe I dodged a bullet, maybe ring bruce davis or mr automotive.
    my vehicle has worked pretty hard a lot of 4th gear towing with well over a ton shame about the leaking t seal and vacuum pump keep us posted chers

  9. #9
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    Quote Originally Posted by steveG View Post
    No sign of a problem doesn't mean there isn't a problem though....
    The previous owner of my 130 was probably unaware the shells were delaminating too....

    For what it costs to replace them, I don't understand why anyone with a 98ish 300tdi would risk waiting waiting for symptoms to confirm if their vehicle is affected.
    Good chance a 300tdi sump at 300K+ is leaking a bit, so pull it off, throw in a new set of big end bearings (< $100) and seal the sump back up.
    2 jobs done at once.

    Steve
    Have to go with that,cheap and easy job.My Tdi has 465K and is an early '98 build,I'm not worried as it doesn't knock when cold and the oil light goes out after a few seconds,I've always run Penrite oil which IMHO is a fantastic oil. Pat

  10. #10
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    My 300TDi is a late 94 so not relevant as far as the bearing delamination issue is concerned but at 300k kms it did have very worn main and big end bearings. My advice, like others have said, is change them anyway. If they aren't delaminating they will probably be reaching their useby date anyway.

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