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Discussion in 'Volvo Forum' started by GLENNCAGEE, Oct 13, 2012.

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  1. Oct 13, 2012 #1
    GLENNCAGEE

    GLENNCAGEE Bobtail Member

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    Oct 13, 2012
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    I have a 2006 volvo 670 with a isx400 st in it. With 670,000 mi's on it, it uses 2.5 gal of oil in 20,000 mi. Period.
    No leaks . No oil drip out of tube. And no signs of blow/by, . Also ive drove other isx's and this one seems to be kind of holding back w/power.
    Can somebody give me some sugestions on these issues and possible diagnoses and remedies...
     
    GLENNCAGEE, Oct 13, 2012
    GLENNCAGEE, Oct 13, 2012
    #1
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  3. Oct 13, 2012 #2
    325TahoeSS

    325TahoeSS Light Load Member

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    Feb 11, 2012
    Roma, Tx
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    So you drive 20,000 miles before you get an oil change? I mean if I'm not mistaken 12,000-14,000 miles is when you have to change it! That might be one of the reasons it's using oil!
     
    325TahoeSS, Oct 13, 2012
    325TahoeSS, Oct 13, 2012
    #2
  4. Oct 13, 2012 #3
    snowwy

    snowwy Road Train Member

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    Jul 6, 2009
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    isx 400.

    that means 400 horses.

    most horsepower ratings are around the 435 - 515 mark. so your gonna be weak in power.

    your oil consumption could be going out the exhuast in the form of smoke. but your really not burning that much to even notice.

    oil consumption could be anything. not just leaks and blowby. you've got piston rings and valve seals also.
     
    snowwy, Oct 13, 2012
    snowwy, Oct 13, 2012
    #3
  5. Oct 13, 2012 #4
    Hardlyevr

    Hardlyevr Road Train Member

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    Mapleton Depot,PA
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    For that many miles on that engine, that is not problem oil consumption.

    When was the last time the overhead was done?
     
    Hardlyevr, Oct 13, 2012
    Hardlyevr, Oct 13, 2012
    #4
  7. Oct 14, 2012 #5
    GLENNCAGEE

    GLENNCAGEE Bobtail Member

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    Oct 13, 2012
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    according to cummins , 25,000 is the oil chg interrval for isx400's
     
    GLENNCAGEE, Oct 14, 2012
    GLENNCAGEE, Oct 14, 2012
    #5
  8. Oct 14, 2012 #6
    GLENNCAGEE

    GLENNCAGEE Bobtail Member

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    Oct 13, 2012
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    ive heard a bad turbo seal could draw oil into the exhaust??
     
    GLENNCAGEE, Oct 14, 2012
    GLENNCAGEE, Oct 14, 2012
    #6
  9. Oct 14, 2012 #7
    GLENNCAGEE

    GLENNCAGEE Bobtail Member

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    Oct 13, 2012
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    never... i was told that at 500,000 mi,s it was supposed to be done. adjust valves. your comments on this...
    thabks.
     
    GLENNCAGEE, Oct 14, 2012
    GLENNCAGEE, Oct 14, 2012
    #7
  10. Oct 14, 2012 #8
    Hardlyevr

    Hardlyevr Road Train Member

    3,270
    2,540
    Jul 30, 2009
    Mapleton Depot,PA
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    Some ISX's had problems with cam lobe wear, and this was easy to diagnose while doing the overhead, preferrably back when the engine was still under warranty. Doing it now may help your power some, and fuel mileage. But it still is a 400. It would not make any difference on oil consumption.
     
    Hardlyevr, Oct 14, 2012
    Hardlyevr, Oct 14, 2012
    #8
  11. Oct 14, 2012 #9
    GLENNCAGEE

    GLENNCAGEE Bobtail Member

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    Oct 13, 2012
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    apprerciate the info. if you have any other info on this type of engine, ege,turbo, or any other problems isx's have, please let me know..believe when i get home to nc., i might take a peek under the valve cover and see what i find......thanks....
     
    GLENNCAGEE, Oct 14, 2012
    GLENNCAGEE, Oct 14, 2012
    #9
  12. Oct 14, 2012 #10
    GLENNCAGEE

    GLENNCAGEE Bobtail Member

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    Oct 13, 2012
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    can increase hp on this engine? lets to a isx 455??? and if so, what does it require, and is it expensive????
     
    GLENNCAGEE, Oct 14, 2012
    GLENNCAGEE, Oct 14, 2012
    #10
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