Jump to content
Sailvi767

Drivetrain clunk

Recommended Posts

Sailvi767

My 2017 LSV has a clunk that occurs at about 1500 to 1800 RPM accelerating. It only occurs after the boat has been in reverse. It can be duplicated out of the water as well as in the water. Transmission was replaced per Indmar but no change. Anyone else have this issue?

Share this post


Link to post
Share on other sites
kerpluxal

Had an issue in my 2010 clunking only when going into reverse... Figured out the problem when the boat would no longer go into gear (forward or reverse), stress cracks in the propshaft in the coupler... Figured it out when my propshaft was no longer in my coupler... 

Share this post


Link to post
Share on other sites
teamerickson

Have you checked your prop nut? Maybe there’s a slight gap between the prop and nut? In forward the prop tries to go up the shaft. In reverse it tries to come off. Maybe the clunking is the prop slamming into the nut because of a gap. 

Share this post


Link to post
Share on other sites
Sailvi767

I checked it and the dealer has checked it several times. It’s also repeatable with the boat on land.

Share this post


Link to post
Share on other sites
formulaben

I would remove the prop and see if it duplicates.

Share this post


Link to post
Share on other sites
wdr

A quick check, grab the prop and give it a quick twist in either direction. You will feel and see it on the prop or feel it on the flange/shaft coupler.

Edited by wdr

Share this post


Link to post
Share on other sites
Woodski

@Sailvi767:  If the key on a tapered shaft is not fully in the groove it will not allow the prop or the coupler to seat properly.  I would loosen prop, check to verify key is fully down in slot and reassemble.  It is pretty easy to have the key slide up the shaft when installing a prop or the coupler.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×