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    1998 Mercruiser 4.3 Tick/Knock

    Pickup screen in tank was clogged. I checked the oil and it looked clean before I took it out. Before this noise, compression was at 140 on all 6 cylinders. I will be taking the drive off next. I pulled one valve cover, only one of the valves/rockers. It sounds like the sound is coming from...
  2. Z

    1998 Mercruiser 4.3 Tick/Knock

    Hello, I have a what I was told was a 98 4.3L mercruiser. I got the boat and it had a fuel problem. I fixed the fuel problem and it ran great for 1 day. At the end of the day, heard a metallic clicking / tapping/grinding type noise, boat slowly lost power and turned off. Tried to restart it but...
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