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Mackpro

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Everything posted by Mackpro

  1. Mackpro
    http://www.roadranger.com/rr/CustomerSupport/Support/LiteratureCenter/index.htm?litlibtarget=1162919212788. Look in here
  2. Mackpro
    There is a Fuller service bulletin on this on some models. Something about adding an extra spring.
  3. Mackpro
    As mentioned earlier, they make a special lower o-ring for fuel in oil but nothing for the upper o-ring, http://hr.mckenzietank.com/maint/bulletins/42-sb221038.pdf
  4. Mackpro
    It was my buddy's CV with a 460
  5. Mackpro
    http://hr.mckenzietank.com/maint/bulletins/44-sb221030.pdf
  6. Mackpro
    Trying to attach service bulletin
  7. Mackpro
    Could be the solinod pack/ magnet o-ring onthe EUP leaking. They make a o-ring kit for this.
  8. Mackpro
    That's good to know as I just bought a new Chamberlain garage door opener. I love their app on my phone . I'm 900 miles from home for a couple of weeks and can open and close from my phone and tell if it's open or closed or even how long it's been closed.
  9. Mackpro
    The failing turbo could have over sooted the DPF . Might be face plugged.
  10. Mackpro
    We have had to weld a nut on the top of injectors befor and slide hammer them out when stuck in the cup. Mack has a really quick cup removal tool now, works great. On the cam issue, it was a injector roller bad and ate up cam. Thoses were 2010 Tyson MP8's and a few 2013's as well.
  11. Mackpro
    A few weeks ago I had a AI engine that was pushing coolant when hot. After trying several things I finally got truck hot and pulled the injectors real fast and then removed the radiator cap. I used a long rubber tipped blow gun and pressureized each cylinder till one started blowing bubbles in the surge tank. Pulled heads and checked head gaskets and liner height. Finally installed re-man Mack heads and all good
  12. Mackpro
    You remove the turbo to after cooler pipe and install test plug on to after cooler, leave all other piping alone., hook up air pressure regulator and pump 30 psi into after cooler/ rest of engine. Spray soapy water on intake gaskets and around air compressor intake piping and back of engine. Due to intake and exhaust valves being open in engine it might not hit 30 psi but it will be good enough to find leaks
  13. Mackpro
    Mack Technician is correct. Yours should have the new updates done at the factory. The 2004 was the problem child
  14. Mackpro
    You get any low fuel pressure codes? The engine ecm cooler plate seems to get clogged a lot on the older MP engines . Blow the lines out. Has the injector code come back? I had a MP 8 a few weeks ago throw a injector code and it was a bad camshaft . Missed like crazy though
  15. Mackpro
    The early ETECHs had bad problems with intake manifold gaskets blowing out. Also remember all ETECH, CCRS and AI engines had the air compressor intake piped into the turbo boost pressure side of the intake system. Any leak at this piping will result in low turbo boost
  16. Mackpro
    If grey motor then I'd look at the screen in the "Y" hose below the oil cooler. And also if a AI water pump was installed on a AC engine it can cause wired issues. Pulley size is different between the two models
  17. Mackpro
    Also ,if early ETECH (98.5-01) then a cam key way change to over 400 hp plus all the other suff listed above
  18. Mackpro
    Is this a ASET engine or early MP7?
  19. Mackpro
    Does it have a Allison trans?
  20. Mackpro
    Only thing I can think of is one of the power relays is not powering down. Try pulling the battery cables off, waiting a few minutes then putting them back on and try starting again. Also, you mean it will crank over but not start or just not crank over at all?
  21. Mackpro
    The Mack Product Improvement Campaigns expire after so long and they delete them out of the system. Because of this I save everything Mack every sends me, all the way back to 2007. However the software updates are still there to help resolve issue.
  22. Mackpro
    Hopefully the now software will be out soon. I think we waited 2-3 months for the last MP-8 updated engine software to fix a fault code issue.
  23. Mackpro
    Sound like the poppets need to be adjusted for full travel . http://www.rhsheppard.com/wp-content/uploads/2014/08/mseriesmanual.pdf and also http://www.wellertruck.com/pdf/tsupp/STRG/SteeringGearPoppetValvesAdustment.pdf
  24. Mackpro
    7-1 is parking brake switch.
  25. Mackpro
    We are starting to see more and more MP-8's with emission deleted. There is a local guy here thats doing them and results have been great so far. Cost is about $5000. Injectors/cups are usually good for about 300,000 miles. We usually see them replaced 3 times in the life of the truck ( on average) . Bull gears/timing gears usually are good till 800,000 at least.

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