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  1. T

    Compression Problems with 175 Johnson

    I have 0 compression in the bottom right cyclinder. 90pounds of pressure in the middle right and 30 in the top right. I put oil in there and it did not come up in the top and bottom one. What could Cause this?
  2. T

    Compression Problems

    I have a 175 horsepower V6 Johnson It is a 1980 model. I did a compression test and found that two cyclinders on the same side are at 0 compression and 40 compression. I was wondering what could cause this problem a burnt valve or could it be a hole in the piston or even the cam shaft. I also...
  3. T

    Compression Problems

    I have a 175 horsepower V6 Johnson It is a 1980 model. I did a compression test and found that two cyclinders on the same side are at 0 compression and 40 compression. I was wondering what could cause this problem a burnt valve or could it be a hole in the piston or even the cam shaft. I also...
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