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09 d13 fuel dilution?

Discussion in 'Volvo Forum' started by neverhome79, Oct 22, 2015.

  1. Oct 22, 2015 #1
    neverhome79

    neverhome79 Bobtail Member

    23
    11
    Apr 18, 2013
    0
    I need to know if the tandem pump can cause fuel dilution? I see that the power steering and fuel pumps run on the same shaft. If the o ring between the two, or some other part for that matter, is worn or incorrectly installed, can fuel seep into the crankcase from this point? 25k on oil, 5.1 fuel dilution. Been trending upward since this pump was changed.
     
    neverhome79, Oct 22, 2015
    neverhome79, Oct 22, 2015
    #1
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  3. Oct 22, 2015 #2
    DaveLV

    DaveLV Light Load Member

    182
    261
    Sep 18, 2015
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    Not likely. It would have to make its way thru the power steering pump and then into the flywheel housing. Most likely cause is a slobbering injector and a washed cylinder.
     
    DaveLV, Oct 22, 2015
    DaveLV, Oct 22, 2015
    #2
  4. Oct 25, 2015 #3
    4x4_Welder

    4x4_Welder Medium Load Member

    300
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    Sep 16, 2014
    Eastern Orygun
    0
    If the upper o-ring fails on an injector it can pump fuel from the rail into the valve cover area.
     
    4x4_Welder, Oct 25, 2015
    4x4_Welder, Oct 25, 2015
    #3
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