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  • Sump plug problems

    G'day all,
    Looking for some insight as how to go with addressing an issue on my car. I have a mild oil leak that appears to be coming from my sump plug but I am unsure now. Below are the investigations I have done.
    - First noticed bottom of sump wet and dripping oil (maybe 2 drips overnight)
    - Cleaned area, appeared to be coming from sump plug area.
    - Changed oil/filter. It took a breaker bar to undo the plug and I noticed there was no washer on the plug (won't be going back to that mechanic)
    - Torqued plug to 42nm (minimum number my wrench will do, I know 35 is recommended)
    - 1 week later I checked my work and the bottom of the sump is wet with oil again. No drips though.
    - Felt around the edge of the sump and was dirty, but not wet at all.
    - The rear of the sump where all the heads of the 10mm bolts are was sticky, but not wet at all. Appeared to come from the U joint on the tailshaft that flicks grease everywhere, it also looked very old.
    - Re-torqued sump plug and got a 1/4 turn out of it before the wrench 'clicked'
    - While under car I noticed a small wet area on bottom of turbo, area below turbo had no oil on it.

    My questions are.
    1. I have read that long-term over tightened plugs can cause the sump itself to crack. Has anyone heard of that with the 150?
    2. Is it possible for the sump plug to un-do itself? Hence the ability to turn the wrench further.
    3. Any other clues as to what it could be?

  • #2
    Have you put a washer back on it?

    Comment


    • #3
      Originally posted by Piggy View Post
      Have you put a washer back on it?
      Ahh, yes. Forgot to write that. Yes I put a new one on.

      Comment


      • #4
        Degrease and hi pressure clean the areas and wait to see where it's coming from.

        Comment


        • #5
          Originally posted by Piggy View Post
          Degrease and hi pressure clean the areas and wait to see where it's coming from.
          Today when I found the leak again there was no wetness on the sides of the sump. Does oil remain wet on a vertical surface or does it tend to dry up?

          Comment


          • #6
            Wet.

            Comment


            • #7
              Interesting. I had a thought regarding the sump plug possibly un-doing itself somehow. Went outside and just put a paint mark on the plug and sump to see if it moves out of alignment.
              Cheers for the help!

              Comment


              • #8
                maybe the threads on the sump plug or the sump have started to stretch , might be worth replacing the plug. yes the holes can crack ive seen it.

                Comment


                • #9
                  If it turns out be the sump that is cracked;
                  12102-30020 $106 sump
                  90341-12012 $2.86 plug
                  90430-12031 $1.00 washer

                  From amayama ex Australia (AUD). Cheaper ex Dubai or Japan but postage can be a killer.


                  Silver '04 KZJ120~Manual~GXL~Dobinson/Kings lift~Custom valved Ironmans~Detroit Locker~Endless Air~X9 Superwinch~Madman EMS1~TJM Dual Battery~Rhino Roof Tray~120W solar panel~Foxwing awning~Bushskinz UVP~Long Ranger water tank~Bushman fridge~Steinbauer P-Box~Beaudesert 2 3/4"~Airtec Snorkel~TJM Sliders~Prico Boost Gauge~BFG-KO2s~TPMS~GME TX3420~Front and Rear Cameras~Ultimate Camper hanging off the back!

                  Comment


                  • #10
                    double post
                    Silver '04 KZJ120~Manual~GXL~Dobinson/Kings lift~Custom valved Ironmans~Detroit Locker~Endless Air~X9 Superwinch~Madman EMS1~TJM Dual Battery~Rhino Roof Tray~120W solar panel~Foxwing awning~Bushskinz UVP~Long Ranger water tank~Bushman fridge~Steinbauer P-Box~Beaudesert 2 3/4"~Airtec Snorkel~TJM Sliders~Prico Boost Gauge~BFG-KO2s~TPMS~GME TX3420~Front and Rear Cameras~Ultimate Camper hanging off the back!

                    Comment

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