8.1Horizon V Drive - 34 PC - Clunking Noise at IDLE

[jam73660]

So my first time in the water this spring, everything seemed fine just as it was the end of last year, but my Port Side Engine/Tranny (V-Drive) is making this very noticeable Clunking Noise with the Tranny in Gear at Idle Speed. Very strange as its only happening at Idle Speed when in gear. If you take it out of Gear and Idle, its fine. If you run the boat hard at upper RPM's, runs like a champ, not clunking noise. Curious if anyone has seen this. My dealer is going to look at it and things it might be a miss in the engine caused by bad spark plugs or wires or maybe an injector. In either event, its always a headache with something like this. Would appreciate anybody who has seen something like this.

 

[Formula Tenn]

i'm no certified mechanic or anything but i have heard other people around my docks with this issue. the two most common problems that i am aware of are low fluid level and low engine rpm. i have actually witnessed someone idle up their engine by 100 rpms and this issue go away. hope that helps.