dphillips479
Recruit
- Joined
- Jun 26, 2016
- Messages
- 1
I have a 1994 Ski Sanger DLX direct drive, I replaced the original 1994 13x13 Oj Legend 3 blade prop with an ACME 543 13x11.5, 3 blade prop. Went out this morning for the first time and I am so happy with the improvements. I gained 3 MPH from 37-40 and rpms went from 4800 to 4400 WOT. There is a very noticable increase in hole shot power and acceleration especially felt on the rope end. Lastly, the ride is so much smoother with far less vibration. I am so happy with the purchse!!
Here is the issue. Just today when decelerating quickly i can hear a whooshing/thumping noise under the boat or maybe towards the back of the engine like the transmission area. This only happens when there is a very rapid change in speed. Almost sounds like the prop is turning the gears from the change of speed.
I will say the overall diameter and the blade area is so much larger on the new prop. I never heard this with my old prop on. With the old prop on i could be going 35 and drop the throttle and no noise could heard.
Anyone heard this or experienced this? Is it what i have described or something else? could this be an indication of something wrong with my boat?
Here is the issue. Just today when decelerating quickly i can hear a whooshing/thumping noise under the boat or maybe towards the back of the engine like the transmission area. This only happens when there is a very rapid change in speed. Almost sounds like the prop is turning the gears from the change of speed.
I will say the overall diameter and the blade area is so much larger on the new prop. I never heard this with my old prop on. With the old prop on i could be going 35 and drop the throttle and no noise could heard.
Anyone heard this or experienced this? Is it what i have described or something else? could this be an indication of something wrong with my boat?
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