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Alright, so not even the guy who we bought the engine from, whom considers himself a mechanic, can't even figure out exactly what this sound is.
It only occurs in the water on deceleration around 3,500 to 3,000. Tried my best to get a video, hopefully someone can shed some light on it.
Thanks!
(We recorded it doing it a couple times in the video, but the first time it does it in the video is the most distinguished.
Boat noise on deceleration, Johnson v4 140 1986 - YouTube
It only occurs in the water on deceleration around 3,500 to 3,000. Tried my best to get a video, hopefully someone can shed some light on it.
Thanks!
(We recorded it doing it a couple times in the video, but the first time it does it in the video is the most distinguished.
Boat noise on deceleration, Johnson v4 140 1986 - YouTube