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Mackpro

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Everything posted by Mackpro

  1. Mackpro
    Hatcity is correct, on all ETECH style cylinder heads the bottom exhaust manifold bolt holes are drilled into the push tube galley. So oil can leak past the threads to the outside. Pull the stud out and put some good RVT ( we use the gray Mack RVT) on it and reinstall. Always use the correct stud and not a bolt or longer stud, we have seen people put a long bolt in and it hits the push tube and causes a engine miss.
  2. Mackpro
    These also might help. H-ring1.pdf H-ring2.pdf
  3. Mackpro
    Is a Mack dealership doing the repair? The "H" ring in the block that holds the lifter could be to high or turned. The dealership should have the tools to check "H" ring alinment. If they are installing ceramic lifter you must have spring loaded push tubes on the exhaust side. Cam break-in.pdf Camshaft.pdf
  4. Mackpro
    When you buy that DD-13 , dont act shocked when you find out they use the same NOX sensors, DEF doser, Holset turbo, same brand/style DEF pump and so on as the Mack/Volvo. Very few suppliers out there anymore. Our Mack/Volvo turbos come in a Cummins box sometimes. That said , I say its a crap shoot with any brand anymore. Just make sure you got a good dealership close by regardless of brand.
  5. Mackpro
    Rust? Really? I just pulled in a new truck off the lot, No rust here? Your dealership on the the Salt Flats or the shore of the Dead Sea? lol
  6. Mackpro
    Here is a fuse diagram for a 1999 RD with an ETECH engine. scan0006.pdf
  7. Mackpro
    Your timing code means you might need the new bigger balancer. Check out this service bulletin sb221037 3-4 code.pdf
  8. Mackpro
    Bingo, thats how your inside buddy at a dealership can do it..
  9. Mackpro
    There is a ground breaker on the firewall next to the wiper motor, All the grounds in the cab come through this
  10. Mackpro
    You have to have a dealer submitt a " Horsepower request form" to Mack for your truck . There are ways around this but you better have a inside buddy at a dealership that will help you out. The only trucks I have ever seen with the 460XT programs were CL's. The file is downloaded into the engine ECM.
  11. Mackpro
    Get the 505plus, Horton 2 speed fan clutch , get the Eaton manual 10 speed ( however you have to get the one with the higher torque rating due to anything bigger than a 505E) . Mack FXL front axle. Hendrickson air ride rear with eaton rears , Dont get the Rawhide, the visibility down the sides sucks due to the pipes, Looks nice but sucks to drive and yes I have drove a few of them. Every one who has ordered the disc brakes loves them. Just my .02.
  12. Mackpro
    On the AI motors , the engine brake wont work till 130 degrees oil temp, so if the ECM cant see the oil temp , it wont allow engine brake. Has the engine ECM software been changes of ECM been changed lately? Swap engine ECM with another truck, Also check engine ECM pins for antifreeze from bad coolant level sensor.
  13. Mackpro
    We have truck running here with 800,000 to 900,000 miles on then with the orignal DPF filters and have never been cleaned. We check the flow/back pressure and still good. Dont believe the hype of 4500 hours. Here at our dealership we maybe change 2 DEF pumps a month in the winter ( freeze and bust) and maybe 1 in the summer. Mostly NOX sensors we see go bad and a few DEF dosers too. The EGR diff sensor can go bad/ get clogged and cause DPF/SCR problems down the road. Im really shocked that we dont have more problems than we really do.
  14. Mackpro
    Is the Engine ECM and ACM ( SCR ECM) software been updated lately? There are alot of Mack Product Improvement Recalls going on now about software issuses. Has the truck been in colder than 20 degrees temps for days at a time? Is the lnsulating wrap still on the clamp on the flex pipe behind the DEF doser? We see this problem alot in cold weather. I think the software updates are probably the fix. Im heading to pick up a Fed-ex truck right now with same issue.
  15. Mackpro
    Loctite makes a "flange sealant" that we use in our shop. Never had one come back out.
  16. Mackpro
    other than the 460XT for the 98-2001 Etech's the only Aussie file i know of is for the 04-07 427HP ASET AI engine, It was hotter than the 460 but didnt meet the USA emissions. However back then you could actually call and talk to the programming guy at Mack and he could tweak things. Now we cant talk to any of the engineers at Mack.
  17. Mackpro
    Also a regen will "time out" after 45 min. Without VCADS/Techh tool you wont know if the soot level dropped or if the regen was good.
  18. Mackpro
    We have had 2 MP's here blowing oil out the blow by tube. One was a MP7 and the other a MP8. We did the compression test and cylinder balance test with the laptop and all looked good. Replaced the complete crankcase spinner assembly ( not just the spinner kit) and this solved the problem in both trucks. Also the oil spray nozzle can fall out of the bottom half of the assembly and cause other issuses. Its only a few dollars more to get the complete assembly.
  19. Mackpro
    Yes and yes. We just lean the radiator forwards about 5 inches and pull fan and fan clutch together. On the Horton website has the changover parts. Our horton rep comes by our dealership about every 6 months and updates info and parts . Your local dealership should have the info.
  20. Mackpro
    Make sure you order the Horton 2-speed fan clutch , unless you like changing the monster Borg Warner Cool Logic fan clutch every year and a half.
  21. Mackpro
    No engine parts change for any HP upgrade on the MP engines. The only thing that can keep you from going to some of the 505's (MP8 of course) is the torque ratings of the trans. We had some customers want to go the the 505M or 505C but their tranny was to small. They were able to go to the 505E because of lower torque rating of the engine. Only difference in the HP of the MP engines is a download.
  22. Mackpro
    Some of the steel lines that go into the oil filter stand have 2 thick orings on the ends of them. Make sure you put 2 back on as if you dont you have to remove the whole assembly again. Ask me how I know! LOL.
  23. Mackpro
    Seen lots of new UPS Pete's or KW's ( KW's I think) around here lately. I still see lots of Mack CXU's with the Cummins westport NG engine driving by my work every day.
  24. Mackpro
    Good!
  25. Mackpro
    We have replaced 100's of oil pressure sensors sometimes 2 or more times per truck. Hopefully this newest part# will be better.

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