1. Missed the live Ask the Expert event?
    Not to worry. Check out the archived thread of the Q&A with Ken Hutcheson, President of U.S. Lawns, and the LawnSite community on the Franchising Forum.

    Dismiss Notice

25 or 23 HP Kawasaki Engine FH721 or FH680 pics of Rebuild all the way through.

Discussion in 'Mechanic and Repair' started by teckjohn, Jan 16, 2013.

Thread Status:
Not open for further replies.
  1. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    we can give it away at cost, dont really matter to me. And never have had a come back.
     
  2. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,240

    Question....
    The crosshatches are a little weak...
    What process did you use to create them..???

    A)...crosshatching sandpaper..
    B)....ball hone..
    C)...spring hone..
    D)...sharpening stone
    E)...none of the above..

    Also...how did you clean the block after crosshatching it..???
     
  3. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    Here is cost on the kit! Its for 3 kits. So around $101 each

    [​IMG]
     
  4. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    E is the answer
     
  5. Dave

    Dave LawnSite Senior Member
    from RI
    Posts: 315

    I hope your motor turns out well for you and runs for a long time, Im courious how many hours does it have on it
     
  6. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,240

    Hmmmm....so I guess there was no need to properly clean the block..???
    Since you didn't use your crosshatching sandpaper..???
     
  7. teckjohn

    teckjohn LawnSite Senior Member
    Posts: 258

    Lisle 16000 Small Cylinder Hone was used

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  8. piston slapper

    piston slapper LawnSite Platinum Member
    Posts: 4,240

    Perhaps...if you knew what you were trying to accomplish...you might be able to properly crosshatch a cylinder..
    Those cylinders look rough...with no particular pattern..they will definitely shorten the life of the new rings..

    I could see it if you were building an engine for yourself....but...you are building these engines for paying customers..
    The worst part is that you think these pictures are good examples of proper engine work..
     
  9. Dave

    Dave LawnSite Senior Member
    from RI
    Posts: 315

    Did you run a cylinder bore guage down the cylinders before honing them? was the crank mic?? IMO unless the engines do not have that many hours on them. I would change them instead of rebuild them. In time they all end up with slop in the carb thottle shafts, (200+) kawi's are known for valve guide issues , with no oversize guide (100+ head only , no valves etc) etc etc. new manufacture warrenty instead of ????? most of the older engines were worth doing as buying new was expensive, there were less or no epa so one could adjust a carb. and like everything else back then , were just made better. this is my opinion
     
  10. djagusch

    djagusch LawnSite Platinum Member
    from MN
    Posts: 4,165

    What's your opinion on a ball hone used on a power drill? Local dealer hear does it that way and looks decent when done.
     
Thread Status:
Not open for further replies.

Share This Page