what happened here..? hole in the block

Discussion in 'Technical' started by ESampson, Sep 5, 2011.

  1. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    well last week or so i finally decided to rip it all apart and get my new heads and pistons and what not together..since we were having troubles with the head studs staying in, but anyways during the disassemble one of my lifters #5 cyl. is chipped as you will see in the pictures (they were brand new couple months ago) and there is a hole blown in the block. but the thing is there is no nothing anywhere, my MSD dist is fine. cams fine, gear drives fine, everything still looks brand new and i can't find any pieces, not even a thing in the oil pan so heres some pic's of it. what do you think happened? could it have been done before i got the car? and i just didn't notice it when i was putting in the lifters and intake because of the location of it?

    http://imageshack.us/photo/my-images/269/img0701sx.jpg/
    http://imageshack.us/photo/my-images/7/img0700dl.jpg/
    http://imageshack.us/photo/my-images/571/img0699of.jpg/
    http://imageshack.us/photo/my-images/846/img0698ns.jpg/
     
    ESampson, Sep 5, 2011
    #1
  2. darren

    darren Member

    Joined:
    Jan 5, 2009
    Messages:
    4,852
    Likes Received:
    45
    Trophy Points:
    113
    Location:
    East of Dave
    Vehicle:
    72 302 Maverick
    Seen that hole many times. I assume its something from casting.
    The lifter is a bit odd to do that chip. Perhaps it was damaged before install or a push rod was out of place.
     
    Last edited: Sep 5, 2011
    darren, Sep 5, 2011
    #2
  3. Resto

    Resto Benders Evil Twin

    Joined:
    Sep 2, 2010
    Messages:
    1,293
    Likes Received:
    5
    Trophy Points:
    147
    Location:
    Yuma AZ
    Vehicle:
    73 Mav Buckets(69 351W, soon to be 408) Floorshift FXBDY AOD ,07 Glide,06 E250HA,01 Silverado
    whats in the oil filter? There had to be some ffragments running around inside the motor to chip that lifter.:hmmm: the hole could be a hammer impact.
     
    Resto, Sep 5, 2011
    #3
  4. darren

    darren Member

    Joined:
    Jan 5, 2009
    Messages:
    4,852
    Likes Received:
    45
    Trophy Points:
    113
    Location:
    East of Dave
    Vehicle:
    72 302 Maverick
    darren, Sep 5, 2011
    #4
  5. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    ESampson, Sep 5, 2011
    #5
  6. darren

    darren Member

    Joined:
    Jan 5, 2009
    Messages:
    4,852
    Likes Received:
    45
    Trophy Points:
    113
    Location:
    East of Dave
    Vehicle:
    72 302 Maverick
    You betcha.
     
    darren, Sep 5, 2011
    #6
  7. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    Those are oil drain back holes. No worries. They all have em.
     
    baddad457, Sep 5, 2011
    #7
  8. Resto

    Resto Benders Evil Twin

    Joined:
    Sep 2, 2010
    Messages:
    1,293
    Likes Received:
    5
    Trophy Points:
    147
    Location:
    Yuma AZ
    Vehicle:
    73 Mav Buckets(69 351W, soon to be 408) Floorshift FXBDY AOD ,07 Glide,06 E250HA,01 Silverado
    Went out to the garage, learned something new. theres a hole in my block.:rofl2:
     
    Resto, Sep 5, 2011
    #8
  9. darren

    darren Member

    Joined:
    Jan 5, 2009
    Messages:
    4,852
    Likes Received:
    45
    Trophy Points:
    113
    Location:
    East of Dave
    Vehicle:
    72 302 Maverick
    ITs a funny lookin hole isnt it. I remember seeing it as a teenager on my first tear down. ITs like Ford forgot a drain hole so they punched a hole through the casting. Its pretty crude looking.
     
    darren, Sep 5, 2011
    #9
  10. Resto

    Resto Benders Evil Twin

    Joined:
    Sep 2, 2010
    Messages:
    1,293
    Likes Received:
    5
    Trophy Points:
    147
    Location:
    Yuma AZ
    Vehicle:
    73 Mav Buckets(69 351W, soon to be 408) Floorshift FXBDY AOD ,07 Glide,06 E250HA,01 Silverado
    From the look of it, it really does look like an impact. I never noticed it.:tiphat:
     
    Resto, Sep 5, 2011
    #10
  11. Streamliner

    Streamliner Member

    Joined:
    Mar 4, 2010
    Messages:
    578
    Likes Received:
    3
    Trophy Points:
    100
    When they get 3" or more in diameter, you have a problem:biglaugh:
     
    Streamliner, Sep 6, 2011
    #11
  12. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    It is, but it was done while the block was hot from the mold.
     
    baddad457, Sep 6, 2011
    #12

Share This Page