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Thread: 6HP26 Transmission leak/dump

  1. #1
    Join Date
    Jan 1970
    Location
    Brisbane, Queensland
    Posts
    5,243

    6HP26 Transmission leak/dump

    Iím on day 1 of a 4 week trip.

    Late this arvo I got a trans fault and lost drive. I coasted to a stop with motor still running. After stopping I noticed some mist (not really smoke) so switched off the motor.

    Popped the bonnet to find some oil substance sprayed about, then noted the trail to were I stopped and after stopping a pool of oil formed under the motor.

    The L322 has dropped its trans fluid. Itís coming from under the engine somewhere. Iíve checked the engine oil which is full. So definitely not engine oil.

    So Iím thinking I have a split hose between the trans and trans cooler or a split in the trans cooler.

    Anyone have any experience with these symptoms? Thanks.
    L322 tdv8 poverty pack - wow
    Perentie 110 wagon ARN 49-107 (probably selling) turbo, p/steer, RFSV front axle/trutrack, HF, gullwing windows, double jerrys etc.
    Perentie 110 wagon ARN 48-699 another project
    Track Trailer ARN 200-117
    REMLR # 137

  2. #2
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,537
    The trans cooler is easy to see, remove the plastic undertray. The pipework is pretty protected, and it is unusual to burst any of the fittings, hope it isn't too much of an ordeal?
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈

  3. #3
    Join Date
    Aug 2006
    Location
    Kingston, Tassie, OZ.
    Posts
    13,537
    Redirect Notice


    Bolts to side of engine area lhf
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈

  4. #4
    Join Date
    Jan 1970
    Location
    Brisbane, Queensland
    Posts
    5,243
    Thanks JC. Are the fittings the plastic type similar to fuel filter connectors?

    Iím trying to work out if I can get a hydraulic place in Roma to fix this or do I buy a genuine pipe complete. Thanks.
    L322 tdv8 poverty pack - wow
    Perentie 110 wagon ARN 49-107 (probably selling) turbo, p/steer, RFSV front axle/trutrack, HF, gullwing windows, double jerrys etc.
    Perentie 110 wagon ARN 48-699 another project
    Track Trailer ARN 200-117
    REMLR # 137

  5. #5
    Join Date
    Jan 1970
    Location
    Brisbane, Queensland
    Posts
    5,243
    Ive had the car towed to repairer.

    A face plate on the aircon compressor wheel has let loose and hit the transmission line to the cooler. The repairer is saying there is a burning smell from the transmission.

    I lost drive quite quickly, stopped within about 1 minute, and a heap of fluid drained out under the engine after shutting down the motor. Is the trans likely to be damaged?

    Given the age and miles of the car, and so its value in good running order, Im questioning the value of a trans rebuild. It would end up being a $9k repair bill with the trans, aircon, new drive belt, tensioners, trans/cooler line.
    L322 tdv8 poverty pack - wow
    Perentie 110 wagon ARN 49-107 (probably selling) turbo, p/steer, RFSV front axle/trutrack, HF, gullwing windows, double jerrys etc.
    Perentie 110 wagon ARN 48-699 another project
    Track Trailer ARN 200-117
    REMLR # 137

  6. #6
    Join Date
    Dec 2017
    Location
    wandin nth vic
    Posts
    249
    The amount of oil on exhaust etc ,I'm not suprised there is a burning smell. Call the bluff. New trans line ,compressor clutch ,tranny oil and try and enjoy the rest of your trip.

  7. #7
    Join Date
    Jan 1970
    Location
    Brisbane, Queensland
    Posts
    5,243
    Quote Originally Posted by theelms66 View Post
    The amount of oil on exhaust etc ,I'm not suprised there is a burning smell. Call the bluff. New trans line ,compressor clutch ,tranny oil and try and enjoy the rest of your trip.
    Thatís about $3k I think. Youíre right there was oil everywhere in the engine bay, under the car. And on the front of the TVan and about 200m back from where I stopped.

    With $3k down it might be ok. Or might need another $6-7k.
    L322 tdv8 poverty pack - wow
    Perentie 110 wagon ARN 49-107 (probably selling) turbo, p/steer, RFSV front axle/trutrack, HF, gullwing windows, double jerrys etc.
    Perentie 110 wagon ARN 48-699 another project
    Track Trailer ARN 200-117
    REMLR # 137

  8. #8
    Join Date
    May 2003
    Location
    Sunny Coast QLD
    Posts
    27,982
    If its of any interest,, the 4HP often survives an on road fluid dump....
    "How long since you've visited The Good Oil?"

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    Making Lemonade since 2016.


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  9. #9
    Join Date
    Jan 1970
    Location
    Brisbane, Queensland
    Posts
    5,243

    6HP26 Transmission leak/dump

    Quote Originally Posted by Pedro_The_Swift View Post
    If its of any interest,, the 4HP often survives an on road fluid dump....
    Thanks Pedro. 6HP26 is a completely different design.

    But from my limited knowledge/understanding, I tend to agree it should survive a fluid dump. Once fluid levels drop the pump will stop providing pressure to the valve body and series of clutch plates should disengage. Which results in no drive.

    So the only possible damage I can think of is to the pump if it ran dry. But I donít think it had run completely dry as oil was still pouring out after the motor stopped.

    In any case I think itís too much risk to drive it to Darwin. I donít fancy a breakdown on the Barkly HW. I would need to drive it for a few months before being confident the fluid dump had no impact on the transmission.
    L322 tdv8 poverty pack - wow
    Perentie 110 wagon ARN 49-107 (probably selling) turbo, p/steer, RFSV front axle/trutrack, HF, gullwing windows, double jerrys etc.
    Perentie 110 wagon ARN 48-699 another project
    Track Trailer ARN 200-117
    REMLR # 137

  10. #10
    Join Date
    Mar 2007
    Location
    Canberra
    Posts
    581
    Not something anyone of us would like to have happen.
    I agree with theelms66 I would clean engine bay, trans etc replace with 2nd hand A/C compressor and oil line and try it. You could live monitor the trans with your ID tool and see if the readouts are out of the normal limits. I would also send Phil at Ffrr a text and ask his opinion on the loss of oil from the trans, regarding possible damage and risks. He is the guru when it comes to these transmissions.
    I never heard of a fault like you had with the A/C compressor before

    Hope it all works out for you, so your trip is not over yet, just delayed.

    Laurie

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