Oil pan gasket still leaks

Engine, Trans & Driveline

  1. Purepony

    Purepony Well-Known Member

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    So I had a leak in the oil pan but it wasn’t too bad the. I replaced my breather on the valve cover, replaced the water pump, belts and hoses and next thing I know the oil pan started leaning pretty bad.
    I removed it and I did make a mistake by not really cleaning under the block I did wipe but didn’t clean it and o feel like some oil residue stayed there.
    The bolts in the front are hard to get to and I don’t think I tightened the bolt to 15 lbs as stated so drove around and it leaks again and just as bad as before. I’ve done oil pan gaskets before and they’ve never leaked but only on ls engines and the engines were out of the car so I was able to use a torque wrench

    should I

    a) retighten the bolts and use silicone on them since it had it before. it seems every time after a drive the bolts get loose. I check them and they’re loose every time since I did the gasket.
    The what was a new gasket did get wet with oil

    B) remove the whole pan again and do the job by cleaning the block with some brake cleaner or alcohol, use the 90 min gasket ultra black in the front under timing cover and a get new fel pro gasket

    c) do a Tesla engine swap lol I wish just so I wouldn’t have to deal with gaskets and oil anymore haa! Kidding

    d) what would you do ? Any recommendations
    Thanks. My car and I thank you
     
  2. Kern Dog

    Kern Dog FBBO Gold Member FBBO Gold Member

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    I have dealt with leaks for years, I tried a few different things but the best results that I have had to date was the last thing that I tried.
    Good quality Fel Pro black fibrous gaskets and "The Right Stuff" sealant.

    SST 582.jpg

    383 81 bbb.jpg


    SST 595.jpg
     
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    • Purepony

      Purepony Well-Known Member

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      Thank you and I was hesitant about the rights stuff but does it really work in 90 mins ?
      Is there anything I should do ? Check pan to make sire it’s straight ?

      I bought this
      Is this the same ?

      7F396B36-DB6C-4C1C-986E-025506B55079.png
       
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      • Kern Dog

        Kern Dog FBBO Gold Member FBBO Gold Member

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        That looks like it.

        I wasn't concerned about the cure time. I just wanted it to seal up. I think they state the cure time as an incentive to pro mechanics for faster completion times. For an enthusiast with a hobby car, I only wanted it to keep oil on the inside!
         
      • Purepony

        Purepony Well-Known Member

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        Same here
        I’m gonna go get this first thing tomorrow
         
      • Durandal25

        Durandal25 FBBO Gold Member FBBO Gold Member

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        If the pan is still off, lay it on a flat surface, shine a light over the bolt holes to see if the pattern is raised or warped.....if the bolt holes need the be re-formed a bit to take out imperfections from over tightening
         
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        • 65-440

          65-440 Well-Known Member

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          Are you absolutely sure it's the oil pan? Oil pans are easily mistaken for leaks coming from higher up....rear main seal, intake manifold....
          What engine are you working with?
          For my oil pans I use the regular felpro cork gaskets and brush on some aviation form a gasket on both sides of the cork, works every time.
           
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          • ruffcut

            ruffcut FBBO Gold Member FBBO Gold Member

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            Use the Right Stuff gasket maker like KD says! I don't even use a gasket on my race car and finally after many years of leaks, NO LEAKS! And I might add, I have a main stud girdle on there as well. ruffcut
             
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            • BSB67

              BSB67 Well-Known Member

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              This. You never said exactly where the oil leak is. Do that first to focus your solution. If its leaking in the front, remove and reseal the timing cover. Leaks at the back can be valve covers, and rear main seal.

              Sealing the oil pan is pretty easy, IMO. Although doing it from under the car is more challenging. Everyone has there special solution. I have never had an oil pan leak, and I don't think I used the same method twice for sealing it up. Cork gaskets, rubber gaskets, no gaskets, with sealant, without sealant.........

              Clean the surfaces well, and knock back the bolt holes.
               
            • slepr1

              slepr1 Well-Known Member

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              I had oil pan leaks for years, tried several ways to fix but never worked. I bought a new pan and good gasket, used the Right Stuff to seal, and its been bone dry since. I figure the pan itself wasn't perfectly straight.
               
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              • MarPar

                MarPar If it weighs, it pays FBBO Gold Member

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                • Purepony

                  Purepony Well-Known Member

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                  I’m going to che k for that
                   
                • Purepony

                  Purepony Well-Known Member

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                  I’m pretty sure it completely wet under the lip of the pan
                  Doesn’t look like it’s the timing cover but you have me thinking of I should do the timing cover while there
                   
                • Purepony

                  Purepony Well-Known Member

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                  I’m pretty sure it’s the lip of the oil pan because when I tighten the bolts it dlows the leak down
                   
                • R413

                  R413 Well-Known Member

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                  The job failed, tightening bolts just warps the pan.

                  Make sure where it’s leaking. If you can’t tell tape some crumpled up paper towel over the leaking area and drive it. You can take them off carefully and see where it’s leaking without oil going all over the area.

                  This has to be CLEAN and dry. Do the inside of the bolt holes in the block and bolts. Wipe several times in till the rag stays clean before installing new gaskets, brake clean is your friend.

                  straighten the pan when it’s off. No warped flanges. Blocks of wood and some gentle hammer work

                  The right stuff is fine, but it doesn’t come off very well. I like permatex black RTV.
                   
                • Purepony

                  Purepony Well-Known Member

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                  Thank you for the advice
                  I’m going to check the straightens off the pan this time
                  While there should I replace the timing cover gasket ? Any advice on this procedure ? Should I remove pan first then timing or timing first ? Both off ?
                   
                • R413

                  R413 Well-Known Member

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                  Do you realize how much work it is to replace the timing cover gasket? They rarely leak, but anything is possible. Why don’t you try and do some diagnosis of where the leak is first.
                   
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                  • Purepony

                    Purepony Well-Known Member

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                    I’m pretty sure it’s the oil pan but I’m removing the oil pan, center link and I’ll be under the car wouldn’t it just make sense to do the timing cover ?
                    Ok my 69 camaro with an ls swap I was going to do the oil pan for the swap, while there I did the front timing cover, , seal the rear timing cover, valve cover gaskets, intake and oil pan. Car doesn’t leak a drop of oil anywhere.

                    if it makes sense I’d rather just do it since I’m there
                    can someone chime on the procedure or anything I should know about on the timing cover ?
                     
                  • BSB67

                    BSB67 Well-Known Member

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                    If it is leaking at the front, removing the timing cover is the best and easiest fix IMO. The timing cover/pan interface is a source of leaks. If the leak is not there, you are right, don't mess with it. Again, it goes to finding the leak.

                    To the OP, you need to clear all of the oil off of everything. Start the car, and crawl under the car and watch for the leak. You cannot drive down the road and try to find the leak as the oil is everywhere.
                     
                  • MarPar

                    MarPar If it weighs, it pays FBBO Gold Member

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                    Forgive me if I missed it, but do you have an FSM? (factory service manual produced by Chrysler)?
                     
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