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valvetrain noise?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 05379, Oct 5, 2011.

Page 2 of 2
  1. Oct 7, 2011 #11
    05379

    05379 Light Load Member

    115
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    Nov 15, 2008
    montague ma
    0
    thanks guy's a cat man is taking a look on monday i'll let you know what he finds
     
    05379, Oct 7, 2011
    05379, Oct 7, 2011
    #11
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  3. Oct 11, 2011 #12
    05379

    05379 Light Load Member

    115
    3
    Nov 15, 2008
    montague ma
    0
    well he took the jake housings off no broken or loose anything he checked all studs and bolts nothing wrong reinstalled re adjusted valves and jakes i ran it today with no change. he said maybe a injector going bad idk!
     
    05379, Oct 11, 2011
    05379, Oct 11, 2011
    #12
  4. Oct 18, 2011 #13
    RoBo

    RoBo Bobtail Member

    3
    0
    Nov 5, 2009
    Eastman,GA.
    0
    Its Amazing how many different things can have the same symptoms. I've been struggling for years with a c12 MBL(bridge Motor) head pulled twice,overhead not holding, smoking skipping, poping out intake, replaced injector, today noticed that the lifter flap for #6 intake is barely moving. I can actually push on the intake rocker arm while engine is running. Looks like the cam lobe is worn slap off.
     
    RoBo, Oct 18, 2011
    RoBo, Oct 18, 2011
    #13
  5. Oct 18, 2011 #14
    05379

    05379 Light Load Member

    115
    3
    Nov 15, 2008
    montague ma
    0
    :biggrin_2555:i know i brang truck to a shop for this today and they did a cut out test said it was #6 injector so they replaced it got half way home noticed truck running rougher then b4 truck doesn't do it till warmed up to bad shop is 100 mi away called shop shop said bring it back must be #5 they also said that the first guy had injectors like 2 turns to tight
     
    05379, Oct 18, 2011
    05379, Oct 18, 2011
    #14
  7. Oct 20, 2011 #15
    05379

    05379 Light Load Member

    115
    3
    Nov 15, 2008
    montague ma
    0
    update took valve covers off took a stethascope sorry can't spell ha and checked for noise it is coming from the new #6 injector so with nothing to lose i swapped cylinoids from #5 and 6 started again now noise is from #5 and still skipping seems like the skip is in sync with noise so what you think is the cylinoid my prob? can i just buy a cylinoid? thanks shawn
     
    Last edited: Oct 20, 2011
    05379, Oct 20, 2011
    05379, Oct 20, 2011
    #15
  8. Oct 21, 2011 #16
    AUSSIE DAVE

    AUSSIE DAVE Road Train Member

    1,032
    176
    Feb 21, 2010
    OZ - Brisbane
    0
    you can check soliniod with multi meter, you need to find out what they should be at, sorry i dont have the specs.
     
    AUSSIE DAVE, Oct 21, 2011
    AUSSIE DAVE, Oct 21, 2011
    #16
  9. Oct 21, 2011 #17
    Shade Tree

    Shade Tree Light Load Member

    177
    44
    May 15, 2011
    Galloway Ohio
    0
    You can't just change solenoids. The injector must be replaced. There can still be a problem with the injector mechanically and not kick put a fault code.
     
    Shade Tree, Oct 21, 2011
    Shade Tree, Oct 21, 2011
    #17
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