I have a 2002 208 Adventure w/ a 200 hp Yamaha 4-stroke. My motor is mounted on the second hole from the top. The plate above the prop is buried and cannot be seen while under way. I was wondering what mounting hole is everyone running?
What mounting hole?
- Thread starter Harleyfxdl
- Start date
The cavitation plate should be even to slightly below the bottom of the hull, in your case the keel
It is even, I read somewhere that the cavitation plate should be visiable while on plane, any thoughts?
Harleyfxdl said:
I don't think you can say that since the position of the cavitation plate is dependent on the tilt of the motor. In theory, you can tilt the plate partially or completely out of the water, so what would you use as a baseline? The position of the plate is checked with the motor parallel to the transom. I suppose there could be tweaks to the positioning but I have no idea how you would compare different settings
wahoo33417
GreatGrady Captain
- Joined
- Feb 28, 2005
- Messages
- 1,233
- Reaction score
- 240
- Points
- 63
- Location
- West Palm Beach, FL
- Model
- Sailfish
I have read the same from a umber of different sources; the anti-cavitation plate should be visible while on plane.
At least on my boat, while on plane with the motor trimmed such that the prop (more importantly, the direction of thrust) is level with the water, the plate just skims the surface of the water.
Rob
At least on my boat, while on plane with the motor trimmed such that the prop (more importantly, the direction of thrust) is level with the water, the plate just skims the surface of the water.
Rob
I am still not convinced that you can make a general statement about the plats position. For sure, you don't want the underside of the plate out of the water. That boat originally had a 2 stroke power plant. The 4 strokes weight about 100 pounds more. That will lower the stern.
Gear, fuel and people will also change the height of the boat in the water. In addition when you move to the stern to 'look' at where the cavitation plate is, you are shifting weight aft, pushing the plate down. With all these factors, I would lean towards having the plate slightly lower to avoid possibilities of the plate coming up out of the water stream under different running conditions.
More important than plate position are handling characteristics. If the boat/motor are working well together, don't look for trouble.
Gear, fuel and people will also change the height of the boat in the water. In addition when you move to the stern to 'look' at where the cavitation plate is, you are shifting weight aft, pushing the plate down. With all these factors, I would lean towards having the plate slightly lower to avoid possibilities of the plate coming up out of the water stream under different running conditions.
More important than plate position are handling characteristics. If the boat/motor are working well together, don't look for trouble.