Shop Blew up engine...:(

Discussion in 'Mechanic and Repair' started by RickyDL77, Oct 12, 2010.

  1. RickyDL77

    RickyDL77 LawnSite Senior Member
    Posts: 431

    Seen someone post a cool "What Happened Here" thread couple weeks ago that i enjoyed so figured i try one myself.

    This is an example of what cutting corners will get ya. my seasonal help came in on a saterday and finished up a rebuild of a Kawasaki FH680V DS13 with 3256 hours that was only suffering oil leaks. Opted to go head and replace Rings and Valves and clean everything top to bottom. Everything checked to specs on friday before i gave him the go ahead to put back together.

    Guess what caused this after 4 hours of use right after an overhaul

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  2. rlitman

    rlitman LawnSite Bronze Member
    Posts: 1,552

    My guess is all of those extra parts in there.
    Who would have reassembled that engine with those bent bolts and random chunks of metal?
    Well, at least I think I see the source of the oil leaks. You got a big hole in there.
    Nothin a little duct tape won't fix.

  3. RickyDL77

    RickyDL77 LawnSite Senior Member
    Posts: 431

    lol oh ductape and mechanics wire are these guys favorite things... some machines come in looking like a piece of art rather than equipment.

    MOW PRO LAWN SERVICE LawnSite Bronze Member
    Posts: 1,566

    o o o i see they left a bent bolt in the block and washer?
  5. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,245

    Is it tough to find a torque wrench on saturday?....
    It couldn't have been the governor adjustment...Could it ?

    Green mechanics are expensive to break in...Wear Safety Glasses
  6. RickyDL77

    RickyDL77 LawnSite Senior Member
    Posts: 431

    close.. the bolt was the first thing to go but it wasnt because it wasnt torqued right...

    notice that one bolt is larger than the other? i was informed after it went back out monday that when he was putting it back together saterday, he had one of the bolts on the connecting rod strip out... instead of waiting to replace the connecting rod like he should have he decided to use longer bolt. said it tightened to the correct tourq but what he didnt realize was it was not a torque specific was just a basic bolt without the larger head surface.. I'm guessing it either striped out the rest of the 3 or 4 threads it was able to grab, or it just backed out after heating up and cooling down when he tested for leaks on saterday.

    Needless to say $120 overhaul is now $570 on top of that.. cant blame him, only his 3rd and learn lol
  7. The Lawn Ranger CT.

    The Lawn Ranger CT. LawnSite Member
    Posts: 194

    Only 1 word comes to mind........ 'OUCH'~!
  8. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    Your guy learned something from this that he will remember for years to come, I'm sure he feels really bad about it and feels lucky he has a understanding boss.....
  9. sjessen

    sjessen LawnSite Gold Member
    Male, from Knoxville, Tn
    Posts: 3,334

    I have a similar engine with 3760 hours on it. Runs, but is getting tired. Are they even worth rebuilding? My dealer says no.

  10. rain man

    rain man LawnSite Silver Member
    Posts: 2,794

    Cool angle on the thread.

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