Donald smith

this   truck is a  roll  off  cv model      i believe   dip stick is original   i  did  leak down tests  of  cylinders    all   hold    100   psi   for  about 20  seconds

  or  so  then  drop off       it  doesnt  blue smoke      i   was  thinking    there are  plugs  behind    cam gear     maybe  one  is  loose  ? 

i think  after    a  short  drive  it  begins  to   leak  out    +   sprays  down  chassis  

we had  another aset engine leaing fuel    into crankcase   from fuel plug  behind  front cover  

it was  sent to   another shop   they  replaced air compressor   but  still   oil comes   out  when  running  engine /driving  hard  

 is it  possable  to  have  eups  leak  

i was thinking   i have   internal fuel leak  lie  maybe  from eups    but doesnt seem to be making oil  

the turbo was replaced  because it was leaking oil in     ex.  pipe   i think     but still   oil comes out road draft tube  

got a  02 etech    engine   blows  oil  out road draft tube    when driving    cv  model  400  engi 

tested compression     all  are   450   +   higher    any one  know  comp.  spec ? 

2012  mru     injecter codes    4,5,6     fm1    5    can an injecter    cause this   or  maybe harness  ?

what does  learned data reset do  ?

this is a natural gas    engine    the oil is very clean ( amber )     I  press. tested trans. cooler  didn't seem to  leak  

2014   mack leu   with cummins islg    has  orange foam   in cooling    system     possible oil    from     leaking head  gasket  or   liner  ?

any  ideas ? 

check your ground +    power stud  posts near  radiator fo corrosion 

its a  front load   refuse truck  10  stud hubs    with  new style   axle    thread   on hub cap    we    tried    replaceing hub    still breaks the studs

 in a couple of weeks     it has  new    aluminum   wheels   cheap  china  steel ?

hi we have   a   2012   mru   that keeps  breaking  front wheel studs    dealer claimed  wheels  the problem    bought new  wheels  

still keeps  breaking studs     is there   any heavy duty stud   solution    studs are 22mm  

hi  does anyone have any  info   on  codes psid   90    +   nox. monitoring   failure     46   data valid   but  above   normal  range 

 other  than tech tool     truck is  2012   mack mru  

Hi.   I have.   2012. Mru.   Def. System code.   PSID 90.    Fmi.  -14. Special. Instruction

  Any. Ideas.  ??

anyone   know if   aset    ai   +    ac    heads  are the   same    i  have   same casting  numbers  

  +     parts  numbers  on  valves    identicle    also  has  pins  for    powerleach   eng.  

brake  yokes   ?    

thats  asking  for trouble  

this  truck   does have   a   very worn  trunuion  +  saddles     it   also   does   haul

some  heavy   containers  

hi   i  have    2004  mack   cv  model    keeps    breaking     scam  tubes   at  mounting 

flange     to  spider  on  front  drive axle  only    anyone  have  any  ideas ?

hi   does anyone  know if   ai   +   ac  engine  crankshafts   interchange  ?