1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

Readying for the KW

Discussion in 'Trucks' started by DMiller, Oct 13, 2020.

  1. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Opened new front seal box
    Same as what was in it
    Will drop two mains and plastigage
    Again. 10FEDB08-02D1-48D2-892B-48195A19C615.jpeg
     
    doublewide and Spud_Monkey like this.
  2. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Make shift stethoscope, taped off front ports
    Blow thru air compressor supply
    Air dumps from number one piston cooler BA96918A-5500-4B51-9DFC-9A03FBBAEAFD.jpeg
     
  3. Spud_Monkey

    Spud_Monkey Senior Member

    Joined:
    Sep 15, 2018
    Messages:
    2,769
    Location:
    .
    Remind me if I ever divulge this deep into a engine to pull it so I can access everything easier. I will start it on a stand if I have to to test it before dropping it back in. You have been through hell and back with this one, you will eventually find it as I know you won't give up.
     
    kshansen, Labparamour, mks and 2 others like this.
  4. pushbroom

    pushbroom Well-Known Member

    Joined:
    Feb 5, 2017
    Messages:
    81
    Location:
    Saskatchewan
    The steel plug to the left of the tape is sealing the main oil passage in the block. You could remove it to inspect for debris in the main oil passage. Should be able to pull it out with a magnet or push it out with a bent rod through one one the side ports on the block. The plug is just sealed with an oring and held in by the front structure. Similar plug is on the rear, have had to reseal them for leaking before.

    Also when plasticgauging the crank are you jacking up the crank so the excess clearance is on the bottom not the top? It can cause an improper "good" reading.

    Sorry if this is redundant info, just a couple thoughts I had.
     
    DB2, DMiller and JPV like this.
  5. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    I will note the gear train came down with oil on it, just not dripping as would have expected to see, leads me back to a flow loss on that main gallery. Pump feeds at center of main gallery Right Side of block, that in turn feeds the Main Journals feeding rods thru crank, center main feeds the passage to the Oil Pressure tap Left Side, secondary to front main is gallery that feeds gear train, air compressor and head. Starvation at this point and air releasing into block cavity blowing into air compressor feed line indicates the leak point just have to find it.
     
    Spud_Monkey likes this.
  6. kshansen

    kshansen Senior Member

    Joined:
    Mar 11, 2012
    Messages:
    9,709
    Occupation:
    Retired Mechanic in Stone Quarry
    Location:
    Central New York, USA
    That is how we did most of the engines we rebuilt at the quarry shop. First boss was even fussier as he would have the engines sent to appropriate dealer to have them run-in on a dyno!
     
    Spud_Monkey likes this.
  7. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Cannot remember all the in-frames I ever performed, Driptroit, Cummins, IH, a few odd Cats, biggest was a D7 17a, myself and two others stripped it down In the Field and rebuilt it in the crawler, had to as was not able to get it on a trailer where it was. Was a standard practice at Mississippi Lime Company, not much was ever pulled unless needed crank or block work. Was handy at Continental Rebuilders where the engines came in on skids, clean up crew tore them down and tanked ALL the parts, blocks went to machine shop, cams and cranks to grinder contractor. Decked, bore alignment inspected, we started with Bare Blocks and built from square 1.
     
    56wrench, oarwhat and DB2 like this.
  8. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Everything performed so far was needed, nothing is being overlooked or ignored, just time and patience consuming.
     
  9. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Will hang the Cam gear and set backlash as get back from funeral services today, then ready to set timing cover but need to set gasket to the cover or plate with Hitack, it has been relaxing on a sheet of cardboard as was rolled around cardboard tubes to minimize size for shipping. Have a front seal tool coming once its in will clean off crank face better and set the damper again.

    IMG_9689.JPG
     
    skyking1, doublewide, bccat and 4 others like this.
  10. petepilot

    petepilot Senior Member

    Joined:
    Jul 7, 2018
    Messages:
    1,863
    Location:
    central shenandoah valley va,
    Did you find the problem?
     
    DMiller likes this.
  11. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Have not gotten there yet
    Likely Saturday.
     
  12. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    First items first
    Back in time and cover 75% attached sitting on mounts.
    Wanted NOT swinging on hoist and cam timed to crawl under to access the cooler nozzles.
    2FD7D675-7BF4-40A3-9134-84FDC7095AAA.jpeg
     
  13. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Another potential ruled out
    Cooler nozzles all intact no cracks no loose retainer bolts
    No visible cracks on main gallery

    19C80123-185C-47B2-945A-216A6C704732.jpeg
     
    doublewide and Spud_Monkey like this.
  14. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Coming to
    Point of no return
    Remove engine from chassis
    Strip completely as out of removable components as a problem.

    Block cracked across main gallery is all that is left.
     
    Last edited: Oct 24, 2021
    Spud_Monkey likes this.
  15. 56wrench

    56wrench Senior Member

    Joined:
    Dec 4, 2016
    Messages:
    999
    Location:
    alberta
    How about a cracked flair on one of those steel tubes? Or any other internal tube on the pressure side of the lube system?
     
  16. 56wrench

    56wrench Senior Member

    Joined:
    Dec 4, 2016
    Messages:
    999
    Location:
    alberta
    Looks like a funny mark inside that one flair on the LH side of the picture
     
  17. skyking1

    skyking1 Senior Member

    Joined:
    Nov 3, 2020
    Messages:
    2,448
    Location:
    washington
    all i see is dirt. But yeah, this is frustrating for you Dave.
     
    DMiller likes this.
  18. 56wrench

    56wrench Senior Member

    Joined:
    Dec 4, 2016
    Messages:
    999
    Location:
    alberta
    When i suspect a cracked tubing flair i heat it lightly with a torch and it shows up right away usually
     
    DMiller and skyking1 like this.
  19. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Beginning to ask myself why I wasted my time and effort, will be a year or more getting any further.
     
  20. DMiller

    DMiller Senior Member

    Joined:
    Feb 22, 2010
    Messages:
    11,549
    Occupation:
    Almost Retired
    Location:
    Hermann, Missouri
    Used blocks have become scarce commodities $2000-$2500 used needing machine work and freight to get it here, all the gaskets sets and the once use head rod and rocker bolts then can a used block show up also crap that would set the $$ level to useless.

    Then still have remaining drive train work, pretty well depressed currently. Seriously considering parting it out now.