Dropped Valve

Discussion in 'Engine & Transmission' started by Alpal, Jan 4, 2018.

  1. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    Just stripped down an old 1800 that lunched itself on return trip from NSW many years ago. Cruising at highway speed and a big bang and clunking. Switched of and rolled to side of road. Engine would not turn over after stopping. Short story is we got the Kombi home and changed the engine for a 2L pinched from the double cab project.
    Am looking at getting something up to replace tired engine in Schmetterling so pulled the 1800 out and tore it down. Bugger! Engine is trashed. Dropped valve. Destroyed piston and head. Twisted conrod. Belly full of piston bits.
    DSC00662.JPG
     
  2. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    Stripped engine of all bits and pieces and would like so split the case. All bolts removed but resisting my efforts to get apart. Any tricks?
     
  3. Grantus

    Grantus Well-Known Member

    Messages:
    13,570
    Location:
    Southern ACT
    Is the bolt holding the oil pickup tube down near the lifter holes removed? :rolleyes:
     
    grumble likes this.
  4. Blunderbus

    Blunderbus Active Member

    Messages:
    522
    Location:
    St Helena, Melbourne .
    Wow, that is stuffed Alan. Is the bore still ok ?
     
  5. cbus

    cbus Well-Known Member

    Messages:
    10,564
    Location:
    sunshine coast
    That certainly got the munchies.

    Kai mentioned a bolt underneath that often gets missed .
    Check bottom seam carefully.
     
  6. rstucke

    rstucke Active Member

    Messages:
    341
    Location:
    Wamberal NSW AUS
    one at the back above the cam plug is sometimes missed
     
  7. oldman

    oldman Super Moderator Staff Member

    Messages:
    7,513
    Location:
    Avalon Beach NSW
    Owcheeewawa !
    Looks very much like a mooring block to me........:rolleyes:
    Cheers,
    Mark
     
  8. cbus

    cbus Well-Known Member

    Messages:
    10,564
    Location:
    sunshine coast
    I recon you tried to get home . Until the piston failed.
    No oil so maybe it drained first :D
     
  9. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    Think I got all the bolts. Turned it over a few times checking. All stuffed. Conrod is twisted and sump is full of shredded bits of piston. Just curious to split the case to have a squiz inside.. Go with the mooring block concept. Although stepson JD has done some metal art using old metal. May get a new life?
     
  10. Grantus

    Grantus Well-Known Member

    Messages:
    13,570
    Location:
    Southern ACT
    Unless you managed to totally fuse the case together in the final moments......I think there’s still a bolt, your inspection may have missed.
     
  11. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    Will have another go later. Need to get onto looking at the remains of a 2L I have. dropped valve guide a long time ago. probably needs new piston and head. May need to replace top end. Have a pair of new AMC heads. Will shop for a set of cylinders/heads. Any recommendations?
     
  12. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    Split the case after removing the final nuts. Whoops! Still was a bit recalcitrant! As per initial pics, dropped valve, minced piston and head. Interlally a twisted con rod and the dizzy drive gear on the cam shaft chewed. Basically its stuffed but I enjoyed the dis-assembly. Now need to work out the plan to get a better engine into Schmett for Easter Bus Stop.
     
  13. cbus

    cbus Well-Known Member

    Messages:
    10,564
    Location:
    sunshine coast
    Suby :rolleyes:
     
  14. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    Air cooled is cool. If I want a Suby I buy a Suby. I drive Kombi!
     
    peter drogi, David H and melissa like this.
  15. David H

    David H Well-Known Member

    Messages:
    2,403
    Location:
    newcastle
    Hi Alpal,
    Mahle brand piston, rings & liner from these guys. Quality stuff;).
    http://www.tooleyimports.com.au/
    Best to call them tho. Got some before Christmas as spares for 'Old Boy'.
    Cheers
     
  16. David H

    David H Well-Known Member

    Messages:
    2,403
    Location:
    newcastle
    Aw ...poop:(. Gunna need a bigger boat for the anchor;):p:D. Not even an artist could resurrect:(.
    Not Cheers
     
    Last edited: Jan 7, 2018
  17. cbus

    cbus Well-Known Member

    Messages:
    10,564
    Location:
    sunshine coast
    Suppose that's why vw went front wheel drive and watercooled :D
     
  18. Alpal

    Alpal Moderator Staff Member

    Messages:
    8,112
    Location:
    Melbourne Bend of Islands
    You are stirring Col! I'm living in the past!
     
  19. cbus

    cbus Well-Known Member

    Messages:
    10,564
    Location:
    sunshine coast
    Moi??
    Never ;)
     
    oldman likes this.
  20. 1500king

    1500king Well-Known Member

    Messages:
    1,499
    Location:
    Adelaide, SA
    Check the crank.. I had a couple that I pulled down.. crack tested the crank and checked for bend. They were both good. I was surprised.
     

Share This Page