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...
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...