jinma 50hr head maint

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    • October 9, 2012 at 7:29 am #30667
      dogdoc
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        I got a little behind on mowing this fall and as such am now at about 70 hours on my jinma 254.  Did not do the head re-torque at 50hrs.  Still need another 5 hours or so before I trailer to my garage at home and give it a good once over.  Am I asking for trouble, all is well at this point under the hood.

        Thanks 

      • October 9, 2012 at 12:10 pm #35125
        RichWaugh
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          YOu should be okay, I think.  I did  mine at about 75hrs, as I recall.  I pulled the valve train off and re-torqued each head bolt to the specs that Ronald at RanchHand Supply provided, then re-assembled the valve train and set the valve lash properly.  Been fine since, too.

           

          This is a good time to check every other nut and bolt on the tractor – I found loose wheel bolts, and other places that needed tightening or adjusting after everything had “shaken in” for the first 75 hours. 

        • October 9, 2012 at 1:03 pm #35126
          Bob Rooks
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            I concur with Rich. I did my “50 hr.” engine service at 100 hrs., although I did, and do, check everything else at 50 hr, intervals unless symptoms requre otherwise.

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