I need help replacing my blown engine

Discussion in 'Mechanic and Repair' started by hrhlawn, Sep 7, 2013.

  1. hrhlawn

    hrhlawn LawnSite Member
    Posts: 98

    I need help replacing my blown engine I have a 23 Kawasaki FH 680 DS 20 on my hustler Z I was wanting to know if this engine is compatible

    http://www.smallenginewarehouse.com/s.nl?it=A&id=125367&fromsla=T&whence=
     
  2. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    yours is a air cooled engine. depends on if you have clearance and if your shaft size is 1-1/8"x4-5/16"
     
  3. laman

    laman LawnSite Senior Member
    Posts: 335

    How many hours on motor before it broke? What broke on it..
     
  4. hrhlawn

    hrhlawn LawnSite Member
    Posts: 98

    Block crack on it it had 2528.0 hours on it.
    is there anyway to find out what the shaft size on it is without taking it off
    Posted via Mobile Device
     
  5. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,024

    Ahhh...... Doesn't the blown engine have to come off anyway ?

    Just remove the clutch and any pulleys off the crank and measure......
     
  6. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    they can tell you!
     
  7. Jeff in AL

    Jeff in AL LawnSite Senior Member
    from Alabama
    Posts: 728

    Crank on Original FH680V-DS20 engine per Kawasaki is:
    1 1/8 x 100mm (100mm = 3.937")

    Kawasaki DS20.jpg
     
  8. hrhlawn

    hrhlawn LawnSite Member
    Posts: 98

    Thank you Jeff for finding out I appreciate that

    So I called some dealers they want $3100 for the same engine not install that just seems way too expensive for 23 Kawasaki would it work if I bought the same with of the shaft but a longer shaft what would I have to make it work
    Posted via Mobile Device
     
  9. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    Put a 1 1/8 spacer on the end of the crank
    Posted via Mobile Device
     
  10. Jeff in AL

    Jeff in AL LawnSite Senior Member
    from Alabama
    Posts: 728

    No problem for the info...
    I think you need to keep checking with other dealers on pricing!!!
    For $3100 it had better come chromed, installed, with a lifetime supply of beer and some K-Y Jelly!

    Like stated, if you got another engine that had a longer crank, you would just have to shim the difference.

    You might call Hustler and see what other specs were/are used on your specific model mower? Might find a 26 or a 29 that may work instead and be one hell of a lot cheaper!
     

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