Recent content by mrcoop

  1. M

    How Much is Too Much

    95 Johnson 140....good compression on all 4 cyl, but.....<br />On the top of a piston head. How much pitting is too much pitting...to the point that the piston must be rebuilt or replaced?
  2. M

    95 Johnson 140 (recently rebuilt)

    I have a 1995 Johnson 140 the head was totally rebuilt and I may have a total of 20 hrs on the new head. I ran double oil during a break-in phase.<br /><br />Twice running FOT at 5200 rpm the engine dropped rpm to 3500. I checked to see if I had lost a cylinder and learned that I had a fouled...
  3. M

    Is compression too low

    I have a 1995 Johnson 140 the head was totally rebuilt and I may have a total of 20 hrs on the new head. I ran double oil during a break-in phase.<br /><br />Twice running FOT at 5200 rpm the engine dropped rpm to 3500. I checked to see if I had lost a cylinder and learned that I had a fouled...
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