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  1. #1
    Join Date
    Aug. 27, 2010
    Location
    OH
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    416

    Question Deisel truck problems-horse show truck

    I have a show in 9 days and go figure the truck starts making a god awful noise. Had the mechanic out to look at it and he said the crank shaft sheered off toward the back.
    Now I know very little about engines, but it doesnt seem like it would still be running if that happened...??
    Anyone have any input on this? Maybe he's wrong?



  2. #2
    Join Date
    Apr. 23, 1999
    Location
    Rosehill, TX
    Posts
    7,092

    Default

    dunno but I'd have called the tow truck and have it in the shop
    Nothing says "I love you" like a tractor. (Clydejumper)

    The reports states, “Elizabeth reported that she accidently put down this pony, ........, at the show.”



  3. #3
    Join Date
    Mar. 26, 2005
    Location
    Back to Normal.. or as close as I'll ever get
    Posts
    10,438

    Default

    Quote Originally Posted by SGray View Post
    dunno but I'd have called the tow truck and have it in the shop
    ^
    THIS!

    I sheared the front axle on my riding mower.
    I can still use it (cobbled together with a cotter pin), but it needs to be repaired to be 100%.

    I'll take that chance on the mower, I would not want to chance it hauling my horses.
    *friend of bar.ka*RIP all my lovely boys, gone too soon:
    Steppin' Out 1988-2004
    Hey Vern! 1982-2009, Cash's Bay Threat 1994-2009
    Sam(Jaybee Altair) 1994-2015



  4. #4
    Join Date
    Nov. 2, 2001
    Location
    In Jingle Town
    Posts
    35,181

    Default

    off to the shop it goes, not worth risking more damage.
    Quote Originally Posted by Bristol Bay View Post
    Try setting your broomstick to fly at a lower altitude.
    GNU Terry Prachett



  5. #5
    Join Date
    Nov. 6, 2002
    Location
    Henrico, NC 36 30'50.49" N 77 50'17.47" W
    Posts
    6,105

    Default

    If the crankshaft has sheared, it would not be making any noise at all. It's the most important part inside a motor, and one of more than a few that kills an engine if it's damaged. In short NWIH would it still be capable of still running.

    http://en.wikipedia.org/wiki/Crankshaft



  6. #6
    Join Date
    Dec. 15, 2008
    Posts
    124

    Default

    It's possible that the crank shaft pulley bolt is sheared off...

    You said you started it up and it makes an awful noise, does it drive? Does the noise only happen at idle, but decrease when the RPMs increase? Does the truck have less than average power? Need a few more details, because it sounds like it's not the crank shaft itself, but one of it's lovely extra parts...



  7. #7
    Join Date
    Aug. 27, 2010
    Location
    OH
    Posts
    416

    Default

    It still drives fine and when you rev it higher, around 1500 rpm, it quiets down significantly. The motor that's in it is a 1993 7.3 international with a banks turbo. Hubby said turbo is working great, he checked the exhaust, no leaks there.
    Some guy at another shop we stopped at said he thought it was the fly wheel that broke. And the cranks breaking is very rare.



  8. #8
    Join Date
    Aug. 27, 2010
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    OH
    Posts
    416



  9. #9
    Join Date
    Jan. 26, 2006
    Location
    Fort Worth, Texas
    Posts
    5,699

    Default

    ....is it possible the dude said "harmonic balancer failure"... it is a counter weight attached to the front of the crank shaft



  10. #10
    Join Date
    Nov. 29, 2008
    Posts
    3,446

    Default

    Some fords used a dual mass flywheel that could cause problems. Bad injectors can cause issues. Hopefully it's not a spun rod bearing or anything else that would require a complete overhaul.

    Good luck.



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