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Thread: Missing Piston

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  1. #1
    Join Date
    Jan 2009
    Location
    Las Cruces, NM
    Posts
    174

    Missing Piston

    Well i posted up before that i blew up my truck with n2o. Well i was going to put a new engine. Well i pulled off the heads and there is a piston missing.(was in pieces) Would I be able just to put another piston instead of a whole new engine? Can i just remove the oil pan to remove broken piston?
    Wanderer Racing

    2002 Sierra Denali: iron 5.7,cam,243 heads port,headers , true duals, AWD, 42injectors, Nelson Tune, snow performance stage 3,100 Shot of nos, 3200 circle d

  2. #2
    Join Date
    Aug 2007
    Location
    Texas
    Posts
    159
    Oh man, theres no telling were all those parts are and what damage its done to the motor.

    you still have to pull the motor to replace parts. if it was a toy you could try it but as a daily driver it would never be reliable enough to trust it.
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  3. #3
    Join Date
    May 2008
    Location
    Crossett,Ar
    Posts
    2,382
    In that case... Id say either pull it down to the bare block and build her up the right way. Checking then replacing what is needed. With a piston in peices I doubt you'll be able to get away with standard bore as well... Probably messed up the cylinder walls...

    06 Intimidator SS- Tuned, CAI -DD
    03 Silverado- Last incarnation 13.6... RIP
    Ls1, Pnp heads, Polluter camshaft, spray, 4k stall on the way
    "Seize the day like you seize your noodle" - Shin Chan

  4. #4
    Join Date
    Jan 2009
    Location
    Las Cruces, NM
    Posts
    174
    All the cylinder walls dont have a scrath on them. Maybe the pieces went into the crank maybe that missed up. I will open it up all the way on wed to ask for more ?s.
    Wanderer Racing

    2002 Sierra Denali: iron 5.7,cam,243 heads port,headers , true duals, AWD, 42injectors, Nelson Tune, snow performance stage 3,100 Shot of nos, 3200 circle d

  5. #5
    Join Date
    Aug 2007
    Location
    Texas
    Posts
    159
    I dont know how a rod could go up and down in the cyclinder without hiting or damaging itself, Im glad that bad boy didnt come out the side.
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  6. #6
    Join Date
    Feb 2010
    Posts
    150
    piston carnage w/out damage to sidewall.. weird..

    when mine blew, rods shot thru the block..

  7. #7
    Join Date
    Mar 2010
    Location
    Paris, TX
    Posts
    511
    The rod or piston pin almost always scratches the cylinder wall. I would definitely tear it down to bare block to check and rebuild it.

  8. #8
    Join Date
    Feb 2009
    Location
    markham,tx.
    Posts
    65
    your probably better off with a rebuild cuz once you damage a piston more than likely the rest of them have been weakened to some extent

  9. #9
    Join Date
    Mar 2009
    Location
    Cromwell, CT
    Posts
    256
    If you plan on keeping the blower and the juice I would pull it all the way down.

    -Have the crank checked
    -Have the block at least honed and have them check the mains
    -get a set of forged pistons and file fit rings
    01 ecsb 5.3 4x4 z71
    Avalanche 17s and a pant load of miles

    61 Corvette
    350, 4 speed, 4.56's

    32 Ford 4 door sedan
    keeping it "stockish"

  10. #10
    Join Date
    Jan 2010
    Location
    Moore oklahoma
    Posts
    421
    I would even maybe have the rod atless the one rod checked and mack sure it didnt bend ot twist in anyway. better to be safe then sorry. Plus I would like to see pictures of that. That is wild.

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