4MG Rebuild

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Oxbow, Feb 19, 2024.

  1. Oxbow

    Oxbow Road Train Member

    10,768
    108,764
    Nov 24, 2015
    Idaho
    0
    Ha! The boys think it ought to go back white!
     
    JoeyJunk, Feedman, Last Call and 2 others Thank this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. broke down plumber

    broke down plumber Medium Load Member

    493
    1,210
    Jan 25, 2024
    0
    You gonna send that block off to get boiled out ?
     
    Oxbow Thanks this.
  4. Oxbow

    Oxbow Road Train Member

    10,768
    108,764
    Nov 24, 2015
    Idaho
    0
    Probably. We'll decide after we see if it needs to go to the machine shop.
     
    JoeyJunk and broke down plumber Thank this.
  5. broke down plumber

    broke down plumber Medium Load Member

    493
    1,210
    Jan 25, 2024
    0
    I sure aint a mechanic but if i was going thru the trouble of a rebuild i' d sure want to know coolant passages are all clear . A hard lesson i learned on a ole 966 international tractor engine that ran hot after freshen up .
     
    JoeyJunk, Last Call and Oxbow Thank this.
  6. pushbroom

    pushbroom Road Train Member

    1,774
    7,227
    Sep 1, 2012
    0
    Ive pulled cabs with straps through the window holes to an overhead lift.
    Just pulled a sleeper yesterday with a tracked skidsteer with extensions on the forks. Just gotta block the forks to lift on the crossmembers/gussets of the sleeper. Lifted the sleeper in the air and pushed the truck out from under it. Cabs/sleepers are alot lighter then what they look like.

    If you wait til the summer I can chuck my block cutter in the back seat of the mustang and cut the bores on the way through lol.
     
  7. wore out

    wore out Numbered Classic

    14,486
    175,565
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    I used to know this ol outlaw lived on the side of US 67 halfway between the old Sanatorium and the Girl Scout camp. Had a house full of youngins made his livin with a white V8. He used to ask me “Son you know the difference in a white CAT abd a yellow motor don’t you? You can make that white CAT RUN!!!!!” He’d say. Now I can’t say for sure or not if the white motors were any better. But I will say mines white cause sometimes you just need a little something to believe in.
     
  8. Oxbow

    Oxbow Road Train Member

    10,768
    108,764
    Nov 24, 2015
    Idaho
    0
    Planning a trip are you? I sure hope I have it done before summer, but it would be good to meet you!
     
    JoeyJunk, Last Call, Feedman and 2 others Thank this.
  9. Oxbow

    Oxbow Road Train Member

    10,768
    108,764
    Nov 24, 2015
    Idaho
    0
    If nothing else it is a good conversation piece. Of course you have plenty going on that would start a conversation anyway!
     
  10. Oxbow

    Oxbow Road Train Member

    10,768
    108,764
    Nov 24, 2015
    Idaho
    0
    Ok, liners are pulled.
    upload_2024-2-22_11-46-39.jpeg
    There is some evidence of electrolosis on the outside of the liners, but not horrible considering we have no idea of the history. This was probably the worst liner.
    upload_2024-2-22_11-50-59.jpeg
    My biggest concern on the lower bores is some erosion where the top o-ring rests in the bevel.
    upload_2024-2-22_11-53-53.jpeg
    The bores themselves don't look bad to me. You can just feel where the o-rings rested on some, but not all.
    upload_2024-2-22_11-56-0.jpeg
     
  11. Oxbow

    Oxbow Road Train Member

    10,768
    108,764
    Nov 24, 2015
    Idaho
    0
    The deck has been counterbored before. Holes 2 through six all had one shim on, and the depth of the counterbore varied between .026 and .031(rough measurement using a micrometer). Hole #1 was deeper at .061, and that liner had two shims on it. I understand that that is a no no as you should be able to order single shims up to what you need.

    #1
    upload_2024-2-22_12-8-6.jpeg
    upload_2024-2-22_12-9-28.jpeg

    upload_2024-2-22_12-8-47.jpeg
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.