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    <p>I noticed that the click is easier to hear at idle.  Can you take
      off the valve cover and run it at idle for a bit?  While idling
      and valve cover off, push down on each side of the rocker arms
      with a hammer handle or similar and see if the noise stops.  You
      could have some worn rocker arm bushings.  I had on old ford 292
      that did that.  It would drop a pushrod sometimes if you over
      revved it like when it got stuck in mud...</p>
    <p>Cecil<br>
    </p>
    <div class="moz-cite-prefix">On 4/5/2020 7:41 PM, Roger Moffat
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:CA74E8ED-E717-4D3C-B06E-642A77654B37@gmail.com">
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      What happens to the noise if you have it running, and then one at
      a time crack the fittings of the injector pipes on the injector
      pump?
      <div class=""><br class="">
      </div>
      <div class="">Does the noise go away on any one pipe? Does it
        alter pitch or change in any way?</div>
      <div class=""><br class="">
      </div>
      <div class="">Roger<br class="">
        <div><br class="">
          <blockquote type="cite" class="">
            <div class="">On Apr 5, 2020, at 6:12 PM, Dave Maynard <<a
                href="mailto:dave@themaplehillfarm.com" class=""
                moz-do-not-send="true">dave@themaplehillfarm.com</a>>
              wrote:</div>
            <br class="Apple-interchange-newline">
            <div class="">
              <div dir="auto" class="">Fuel was just put in a few days
                ago.</div>
              <br class="">
              <div class="gmail_quote">
                <div dir="ltr" class="gmail_attr">On Sun, Apr 5, 2020,
                  4:18 PM Mike M <<a href="mailto:meulenms@gmx.com"
                    class="" moz-do-not-send="true">meulenms@gmx.com</a>>
                  wrote:<br class="">
                </div>
                <blockquote class="gmail_quote" style="margin:0 0 0
                  .8ex;border-left:1px #ccc solid;padding-left:1ex">
                  <div text="#000000" bgcolor="#FFFFFF" class=""> Long
                    shot here, but what's the quality of the fuel, and
                    how long has it been in there?<br class="">
                    <br class="">
                    Mike M<br class="">
                    <br class="">
                    <br class="">
                    <div class="">On 4/5/2020 3:10 PM, Dave Maynard
                      wrote:<br class="">
                    </div>
                    <blockquote type="cite" class="">
                      <div dir="auto" class="">Lifters have all been out
                        and checked, ports are clear and internals are
                        free and valve lash is adjusted to spec. That is
                        the very first thing we did, and it has been
                        rechecked each of the times we have had this
                        engine apart. I have used Rislone in it in the
                        begining and oil was new when I got it and have
                        changed the oil and filter twice in the few
                        hours of run time it has seen.
                        <div dir="auto" class=""><br class="">
                        </div>
                        <div dir="auto" class="">Dave</div>
                      </div>
                      <br class="">
                      <div class="gmail_quote">
                        <div dir="ltr" class="gmail_attr">On Sun, Apr 5,
                          2020, 8:53 AM Spencer Yost <<a
                            href="mailto:spencer@rdfarms.com"
                            target="_blank" rel="noreferrer" class=""
                            moz-do-not-send="true">spencer@rdfarms.com</a>>
                          wrote:<br class="">
                        </div>
                        <blockquote class="gmail_quote" style="margin:0
                          0 0 .8ex;border-left:1px #ccc
                          solid;padding-left:1ex">Does this engine have
                          hydraulic lifters?Sounds like sticking
                          hydraulic lifters. I had an Isuzu trooper with
                          the 3.5 L engine and these engines were
                          notorious for developing sticking lifters. 
                          Noise sounds very familiar and why I am
                          guessing that.<br class="">
                          <br class="">
                          If I am right,It is harmless but annoying. 
                          There are some techniques for minimizing this.
                          I used to control it with seafoam in the
                          engine oil right before an oil change - maybe
                          100 miles or so.  Then using a high-quality
                          synthetic.  In addition I made very frequent
                          oil changes.<br class="">
                          <br class="">
                          Spencer<br class="">
                          <br class="">
                          Sent from my iPhone<br class="">
                          <br class="">
                          > On Apr 4, 2020, at 3:10 PM, Dave Maynard
                          <<a href="mailto:dave@themaplehillfarm.com"
                            rel="noreferrer noreferrer" target="_blank"
                            class="" moz-do-not-send="true">dave@themaplehillfarm.com</a>>
                          wrote:<br class="">
                          > <br class="">
                          > F2803<br class="">
                          <br class="">
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