Dp-SM vibration under load. Free spin props

Fireman78

Seaman
Joined
May 30, 2018
Messages
54
Finally getting the boat on the water. Had to install a new driveshaft, set the rolling torque. I have a bad vibration in low rpms, but the vibration is constant through whole range, just in the background. Alignment is “ok” I ran out of adjustment on the mounts. I can push in the bar and spin it with 2 fingers. Just a hair tight.
My other concern is I can spin the props freely either direction in fwd and reverse. I’m sure that is a problem. Maybe I forgot something when I filled it with oil and pulled the props.
there is no vibration when revving the engine in neutral
 

Fireman78

Seaman
Joined
May 30, 2018
Messages
54
Also had a hard time getting on plane this last trip. Vibration was still similar to trip before
 
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