kawasaski 27 hp burning oil and smoking

Discussion in 'Mechanic and Repair' started by michael13, Mar 3, 2007.

  1. michael13

    michael13 LawnSite Member
    from CT
    Messages: 28

    I have a 61" scag mower with a 27 hp engine. The unit is smoking and goes through about 2 quarts a day. The compression on both sides is about 145, the book says they should be about 170. I think it points to ring and/or pistons, although both sides have about the same compression ratio. The pistons and rings are a bear to replace because the book says you have to pull the motor to get to the pistons. Any suggestions? Also if I have to buy a engine any reccomendatons for good prices on new and rebuilt. Thanks much
  2. neighborstree

    neighborstree LawnSite Member
    Messages: 94

    do a top end rebuild. 2 new pistons and rings. DO NOT continue to run the mower. cuz if you blow a hold in the side of it then you'll have to replace the whole engine. a new top end if you do it yourself should run you about 250
  3. MowerMedic77

    MowerMedic77 LawnSite Bronze Member
    Messages: 1,164

    You need to perform and cylinder leak down test on both cylinders and that should help point you in the right direction.

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