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StoneandSteel

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    2007 Mack Granite CV713 AI400

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  1. StoneandSteel
    You are correct, so any input or advice are much appreciated. Someone said that the E7 and the ai400 were actually the same engines. I only ask as I begin my search for the rebuild kit for cam and lifters. Any thoughts on this question?
  2. StoneandSteel
    Thank you for the info. I’ll get started ordering the parts and tearing her down.
  3. StoneandSteel
    Found the problem today. It’s for sure 2 bad lifters and I would expect the cam should be replaced as well. My question now is, does the engine need to come out or can I do the repair in-frame?
  4. StoneandSteel
    I followed the valve adjustment procedure per the manual and a video off of YouTube on an ai400 with a Mack mechanic. I did pull the push rods and roll them across a flat surface. They seemed fine. I’m going back into the engine today to start all over from the beginning and try it again. I’ll check all the suggestions so far. Thanks
  5. StoneandSteel
    On my ai400 the valve bridge on cylinder #1 and #6 keeps jumping off even after doing a full valve adjustment. It will run for a few days but eventually I notice a decrease in power and a lot of white smoke which tells me the bridge came off again. I don’t see any noticeable damage to the valve springs or rocker arms. Any idea why this is happening?
  6. StoneandSteel
    Thank you for the info!!!
  7. StoneandSteel
    I’m trying to find out if there is a specific trailer wiring harness for my Mack Granite cv713? Hopefully a plug and play hookup.
  8. StoneandSteel
    My 2007 Mack CV713 engine has AI400 and 2006 on the valve cover id tag. My question is: are the AI400 and an E7 the same engines in 2006 if you were swapping the engine assembly out? My vin number shows that I have an E7 from the Mack dealership. Any help would be appreciated.

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