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oil pan gasket leaking

Discussion in 'Trucks [ Eighteen Wheelers ]' started by heavyhaulerss, Apr 22, 2011.

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  1. Apr 22, 2011 #1
    heavyhaulerss

    heavyhaulerss Road Train Member

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    I have a leak around my oil pan gasket. I had inframe done a year ago,& a new gasket was put on. it leaks just as much before inframe on gasket as before, so I doubt another gasket would help. could the oil pan be warped after so many years? it is original. would a new pan & new bolts do any good? would a new gasket & silicone do any good? ser 60 11.1 det. 1.4 mil miles. leaking 2 gal between 10,000 oil changes. I am afraid a full d.o.t insp will get me wrote up for oil leak. thank's
     
    heavyhaulerss, Apr 22, 2011
    heavyhaulerss, Apr 22, 2011
    #1
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  3. Apr 22, 2011 #2
    Superhauler

    Superhauler TEACHER OF MEN

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    plastic oil pan right? probably has a hair line crack in it. they get brittal with age.
     
    Superhauler, Apr 22, 2011
    Superhauler, Apr 22, 2011
    #2
  4. Apr 22, 2011 #3
    Prairie Boy

    Prairie Boy Road Train Member

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    If it's fibreglass, locate the crack and repair it with JB Weld.
     
    Prairie Boy, Apr 22, 2011
    Prairie Boy, Apr 22, 2011
    #3
  5. Apr 23, 2011 #4
    heavyhaulerss

    heavyhaulerss Road Train Member

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    it is either plastic or fiberglass. it leaks all around the gasket. not every inch, but where the gasket meets the pan & block, so I don't think it is a crack. by looking at it, you would think all the bolts are lose, but they are bottomed out.
     
    heavyhaulerss, Apr 23, 2011
    heavyhaulerss, Apr 23, 2011
    #4
  7. Apr 23, 2011 #5
    Prairie Boy

    Prairie Boy Road Train Member

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    Bolts too long maybe ?????
     
    Prairie Boy, Apr 23, 2011
    Prairie Boy, Apr 23, 2011
    #5
  8. Apr 23, 2011 #6
    heavyhaulerss

    heavyhaulerss Road Train Member

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    no. don't think so. original bolts. it always leaked, just leaking more over time.
     
    heavyhaulerss, Apr 23, 2011
    heavyhaulerss, Apr 23, 2011
    #6
  9. Apr 23, 2011 #7
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    Oil tends to follow around things, sometimes it's hard to pinpoint what is a leak and what has moved there. The whole gasket appearing to be leaking makes me suspect a crack in the pan up near the gasket.

    Good luck with finding the cause, if it drips visibly while you are driving it, it could get you stopped at a scale house or a rest areain some states.
     
    25(2)+2, Apr 23, 2011
    25(2)+2, Apr 23, 2011
    #7
  10. Apr 23, 2011 #8
    AUSSIE DAVE

    AUSSIE DAVE Road Train Member

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    did they forget to put washers on the bolts? just to add when i did my inframe i put a small smear of silicon on the gasket and ran a extra bead of silicon at the front and rear of gasket (oil pan)
     
    AUSSIE DAVE, Apr 23, 2011
    AUSSIE DAVE, Apr 23, 2011
    #8
    shatteredsquare Thanks this.
  11. Apr 23, 2011 #9
    Heavyd

    Heavyd Road Train Member

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    Just make absolutely sure there is no leak from higher up the engine. Oil has a weird way of flowing around things and causing mis-diagnosis. The block may not have been cleaned properly when the pan was put on and you need to put some silicone over the seems where the front cover and bell housing bolt to the block. These are common areas for leaks.
     
    Heavyd, Apr 23, 2011
    Heavyd, Apr 23, 2011
    #9
  12. Apr 23, 2011 #10
    Bush chook

    Bush chook Light Load Member

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    Look at the block at the rear of starter motor and and on the opposite side where your oil pressure gauge pick up is situated and see if you have oil seepage where the rear engine housing bolts to the block - if you do nine times out of ten you have too reseal the housing
     
    Bush chook, Apr 23, 2011
    Bush chook, Apr 23, 2011
    #10
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