340Sundancer
Member
- Aug 11, 2015
- 33
- Boat Info
- 2005 - 340 Sundancer
Blue Hull
V-Drives
Generator
- Engines
- Twin 8.1 MerCruisers
Hi everyone. I need your experience and thoughts on this one....I'll keep the story short and to the point.
Last week while reversing out of the slip I had the port in reverse and the starboard in forward (spinning the boat left) and a passenger bumped the port transmission lever from the full reverse position all the way to the forward position (without stopping in neutral). During the turn, I had a little throttle on the port (reverse) side as the wind and current were stronger than normal that day. So when the port transmission lever went from full reverse to full forward (with throttle added) there was a slam sound. Grrrr!!! So after calming down, we proceeded to exit the channel and out into the bay. Getting up and on plane was normal, then after a few minutes on plane, I could tell something was off.....the RPM's were higher. I usually run at 3,200 or 3,300 RPM's at about 28-29 MPH. Now I was at 3,600+ RPM's and about 26 MPH. The boat is on plane, but it feels like the boat does not have its normal power and like your dragging a bath tub behind you........
After all the passengers left, I went out on the calm lake to diagnose. I opened the engine hatch and listened.....
* Both engines are in neutral and idling they sound perfect. Strong. Healthy.
* Starboard is neutral and throttle is applied to 2,500 RPM's the engine sounds great. Strong. Healthy.
* Starboard is in forward gear and throttle is applied to 2,500 RPM's engine and transmission sound good. Strong. Healthy.
* PORT is in NEUTRAL and throttle is applied to 2,500 RPM's the engine sounds great. Strong. Healthy.
* PORT is in forward gear and the throttle is applied to 2,500 RPM's the engine sounds good, but the transmission has a high increasingly winding sound as you increase RPM's!! When you come back to idle it goes away.
I am wondering if the transmission on the PORT side is: slipping? Bad bearing? Bent prop rod, Bent prop......etc?!?!?!?
Could this be the reason why I am running at a higher RPM with less speed? Feeling sluggish?
Secondly, I also noticed that my throttle levers are no longer even anymore. The PORT side is forward of the Starboard side by about 2 inches when @ 3,200 RPM's. (Could the slam on the port transmission during the pivot turn have an effect on the actual port throttle???)
Strangely enough (maybe to my paranoia) the wake looks different too? Possible or just me?
What are your thoughts??? The boat is scheduled to come out and go into heated storage in a month (September 30th) but what are your thoughts I should do before then? Anyone had something like this? Its very odd.......and of course I want to get it fixed before the winter....
Ugh, thanks everyone.
Last week while reversing out of the slip I had the port in reverse and the starboard in forward (spinning the boat left) and a passenger bumped the port transmission lever from the full reverse position all the way to the forward position (without stopping in neutral). During the turn, I had a little throttle on the port (reverse) side as the wind and current were stronger than normal that day. So when the port transmission lever went from full reverse to full forward (with throttle added) there was a slam sound. Grrrr!!! So after calming down, we proceeded to exit the channel and out into the bay. Getting up and on plane was normal, then after a few minutes on plane, I could tell something was off.....the RPM's were higher. I usually run at 3,200 or 3,300 RPM's at about 28-29 MPH. Now I was at 3,600+ RPM's and about 26 MPH. The boat is on plane, but it feels like the boat does not have its normal power and like your dragging a bath tub behind you........
After all the passengers left, I went out on the calm lake to diagnose. I opened the engine hatch and listened.....
* Both engines are in neutral and idling they sound perfect. Strong. Healthy.
* Starboard is neutral and throttle is applied to 2,500 RPM's the engine sounds great. Strong. Healthy.
* Starboard is in forward gear and throttle is applied to 2,500 RPM's engine and transmission sound good. Strong. Healthy.
* PORT is in NEUTRAL and throttle is applied to 2,500 RPM's the engine sounds great. Strong. Healthy.
* PORT is in forward gear and the throttle is applied to 2,500 RPM's the engine sounds good, but the transmission has a high increasingly winding sound as you increase RPM's!! When you come back to idle it goes away.
I am wondering if the transmission on the PORT side is: slipping? Bad bearing? Bent prop rod, Bent prop......etc?!?!?!?
Could this be the reason why I am running at a higher RPM with less speed? Feeling sluggish?
Secondly, I also noticed that my throttle levers are no longer even anymore. The PORT side is forward of the Starboard side by about 2 inches when @ 3,200 RPM's. (Could the slam on the port transmission during the pivot turn have an effect on the actual port throttle???)
Strangely enough (maybe to my paranoia) the wake looks different too? Possible or just me?
What are your thoughts??? The boat is scheduled to come out and go into heated storage in a month (September 30th) but what are your thoughts I should do before then? Anyone had something like this? Its very odd.......and of course I want to get it fixed before the winter....
Ugh, thanks everyone.