Prop chatter

[Michael Smith]

I have a 2007 pathfinder te just repowered with a 200hp sho and running a 19×15 1/4 I am getting prop chatter when moving at 700-900 rpms what's the fix?

[Moderator]

What prop are you running ?

Prop Chatter is usually caused by a prop with an insert to fit various outboard brands.. There are several, but the Flo-torq II inserts have been the more common ones.

If you don’t have a prop with a ‘hard plastic’ insert, a heavy stainless prop can sorta bounce in the gears as the cylinders fire at low rpms, making the rattle sounds.

To solve the chatter, you can purchase a Yamaha SDS prop, get a Flo-Torq IV hub with cushions, or go to a suitable aluminum prop.  Until then, just bump up the throttle till the chatter stops.. unless you are docking or moving around other boats..

MM

[BradM]

As Mod Mark said, if you have the changeable insert/sleeve, you can change those out with a cushion type. I had chatter on one my my Mercury props that annoyed the heck out of me in no wake zones. I went to the below listed hub a few years back and it eliminated my problem. Outside of that, I love the design and built in forgiveness of this particular hub set up. If it's an option for you, I highly recommend them. 

RBX (RUBEX Hub Kit) (solaspropellers.com)

 

[polliwog]

The chatter is a norm for many people, I repowered with a 150 4 stroke Yamaha 3 yrs ago and get some chatter at low RPMs. Doesn't really both me enough to get a new hub. This has occurred from new,so I assume it is pretty normal.

[Bamaskeet]

I had prop chatter on a PowerTech OFX4 prop. On a F150.  I changed the hub o ring material from Viton to buna n and the chatter went away.