Vibration just before coming on plane
#1
Gold Member
Gold Member
Thread Starter
Join Date: Apr 2004
Location: Myrtle Beach, SC
Posts: 173
Likes: 0
Received 0 Likes
on
0 Posts
Vibration just before coming on plane
I am encountering a vibration around 2200 to 2500 rpm's just before coming on plane. It only last for a couple of seconds and once it starts noising over to go on top the vibration goes away. This is the only time that the vibration is encountered. I am running twin 525's with Bravo 1 XR drives. Anyone have an idea what the problem could be with the vibration? Also, does anyone know whether the couplers are solid or rubber on this drive and engine set up?
#2
Gold Member
Gold Member
Re: Vibration just before coming on plane
When I come up on plane my prop slips a lot right around 2800 rpms and then hooks up. It does feel like a vibration. That may be what you are feeling.
#4
VIP Member
Re: Vibration just before coming on plane
My guess would be prop cavitation. What type/kind of props do you have ??
__________________
Want your ECU tuned right?? Call Mark at Precision www.pmefi.com
Want your ECU tuned right?? Call Mark at Precision www.pmefi.com
#7
Geronimo36
Gold Member
Re: Vibration just before coming on plane
Originally Posted by CMG
could it just be a u-joint under heavy load???
#8
Gold Member
Gold Member
Thread Starter
Join Date: Apr 2004
Location: Myrtle Beach, SC
Posts: 173
Likes: 0
Received 0 Likes
on
0 Posts
Re: Vibration just before coming on plane
Originally Posted by Smitty
My guess would be prop cavitation. What type/kind of props do you have ??
#9
VIP Member
VIP Member
Re: Vibration just before coming on plane
not sure about cavitation (sounds possible) but it would cause a vibration
try posting new thread in the prop section
try posting new thread in the prop section
__________________
Chris G.
Chris G.
#10
Registered
Join Date: Mar 2004
Location: Lake Travis, Texas
Posts: 206
Likes: 0
Received 0 Likes
on
0 Posts
Re: Vibration just before coming on plane
Originally Posted by VIPER7
I did beach the boat and kicked up some mud when I backed off. Could prop damage that you could not see cause cavitation?
With my old boat, I beached at a friends house and when I left, I didn't push it out far enough and when I put it in gear, it was still in the muck a little. When I went to get on plane, it was vibrating, not real bad, but it was definitely noticeable. You could feel it in your feet. It would vibrate at certain rpms and not as much at others.
I had the prop checked, and two blades were bent. The polish still looked perfect.
I would have your props checked, =especially= if they were labbed.
Kent