Vibration at low idle.

[vrvokey]

When we're just putting along at around 1500rpm or so there is a vibration when you steer the out drive back and forth.Not so much in the out drive but through the hull of the boat.The boat is a 1988 19.5 foot celebrity bowrider with a 5.0L merc and alpha one drive,there doesnt feel like any vibration while running on plane.Could it just be wash from the prop at low idle?Any one have any info.

 

[Don S]

Re: Vibration at low idle.

Pull the outdrive and check the ujoints.

 

[vrvokey]

Re: Vibration at low idle.

Pull the outdrive and check the ujoints.

Do you think it could be a bad u-joint?It almost feels like a pulsing in the hydraulics for the steering but thats just a guess.

 

[jkust]

Re: Vibration at low idle.

Sounds similar to what one of my lightly damaged props does if I run it. Very similar to what you are describing at those low rpm's. 5 minutes to put your spare prop on and you can at least rule it out.