fuel on top of center piston

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    • August 19, 2014 at 4:29 pm #30924
      Jim Rodgers
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        I have a 2008 Jinma tractor and I am getting fuel on top of #3 piston. I am  am  getting excessive smoke. I have hade the injectors checked and the valves checked. all checked ok. Does any one have any ideas.

      • August 20, 2014 at 6:42 am #37147
        DavidPrivett
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          white smoke maybe coolant in cylinder, black smoke fuel mix to rich,could use a few more details to help

        • August 20, 2014 at 12:21 pm #37149
          Jim Rodgers
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            It is grey/black smoke. no loss of water or oil

          • August 20, 2014 at 11:45 pm #37151
            Bob Rooks
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              Grey smoke is unburned fuel from incomplete combustion.

              Most noticeable during cold starts Black smoke comes from

              two different scenarios: 1) too much fuel for a given amount

              of combustion air. 2) Not enough combustion air to support

              a given amount of fuel.

              I suggest you first check to make sure your air filter is clean

              and unrestricted (that is probably okay since we are only dealing

              with one cylinder). Do a compression or leak down test on all

              cylinders – remove all injectors when performing this test.

              You say all the injectors tested good, what does the test report

              reveal?

              Account deleted.

            • August 20, 2014 at 11:49 pm #37152
              Bob Rooks
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                This site is getting squirrely again.

                Time for a tune-up Hal.

                Account deleted.

              • August 21, 2014 at 12:21 pm #37155
                Jim Rodgers
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                  I adjusted the gap on all the valves. The one that was wet was tight. after setting them to spec. No more Smoke

                • August 21, 2014 at 7:14 pm #37156
                  Bob Rooks
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                    What did you learn from this experience?

                    Account deleted.

                  • August 22, 2014 at 11:14 am #37157
                    DavidPrivett
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                      p.m. it is a good thing keeps your hair in place vs. jerking it out

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