1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Fresh rebuild and now it burns coolant

Discussion in '7.3L Powerstroke Diesels' started by Oledirtypearl86, Apr 26, 2019.

  1. Oledirtypearl86

    Oledirtypearl86 Full Access Member

    Age:
    33
    Posts:
    876
    Likes Received:
    434
    Joined:
    Sep 17, 2018
    Location:
    Whitehall MT
    So a guy I work with as a 98 F-250 . He just had a fresh rebuild on the 7.3 psd and now it's eating coolant like crazy the shop it's at has pressure tested the cooling system and it checked out do any of you have any other ideas what it could be
     
  2. 13fcolt

    13fcolt former professional

    Age:
    44
    Posts:
    71
    Likes Received:
    0
    Joined:
    Apr 9, 2009
    Location:
    Arkansas
    If no external leaks are obvious it's not going to be fun. Has the pressure test been done on a hot engine?
    Only so many places for coolant to go, If it's not on the ground I'd be checking both fuel and oil just to be safe.
    Typically if any part of the cooling system leaks internally it will contaminate the coolant, being the lowest pressure, but there have been those rare cases that crop up.
     
  3. Oledirtypearl86

    Oledirtypearl86 Full Access Member

    Age:
    33
    Posts:
    876
    Likes Received:
    434
    Joined:
    Sep 17, 2018
    Location:
    Whitehall MT
    Funny you say that that's what they ended up doing now they are pulling he motor I guess that's what you get when you buy a nap long block
     
  4. 13fcolt

    13fcolt former professional

    Age:
    44
    Posts:
    71
    Likes Received:
    0
    Joined:
    Apr 9, 2009
    Location:
    Arkansas
    dang that's rough. Has the cause of coolant loss been found?
     
  5. Oledirtypearl86

    Oledirtypearl86 Full Access Member

    Age:
    33
    Posts:
    876
    Likes Received:
    434
    Joined:
    Sep 17, 2018
    Location:
    Whitehall MT
    Not that I know
     
  6. IDIoit

    IDIoit MachinistFabricator Supporting Member

    Posts:
    12,235
    Likes Received:
    1,713
    Joined:
    Aug 26, 2014
    Location:
    commiefornia
    I had a fresh set of heads where the gawd daymned machine shop use a fricken socket extension to install the injector cups, and didn't use any sealant.
    leaked like a biatch
    check this first
     

Share This Page