Boat pulling port hard when on plane and WOT

[purplegrape]

Hello everyone!

I have a new Crestliner Kodiak 16ft aluminum Deep V with a Merc 40 Tiller. All new gear.

Boat is around 800 pounds with gear...

My issues is that when I am up on plane and running wide open throttle the boat start to pull aggressively port... So much so that I have to come off the throttle. Any ideas? I have looked the motor over and there is no damage. I have installed a transducer on the transom myself after I purchased it. The transducer (just for a garmin echo) sits slightly below the hull on the port side... Could this cause this much drag as to get the whole boat the dig in and make it pull port?

Its not so much a pull as it is it almost seems like it wants to roll the top of the gunnels down into the water?

Any suggestions will greatly help! I had it out 3 time and I don't remember it doing this the first time... Now for some reason its very noticeable. Even with just me in the boat, gas, and batteries.

Thanks everyone!

 

[MikDee]

Re: Boat pulling port hard when on plane and WOT

Does this help? http://forums.iboats.com/engine-fre...aq/boat-pulling-right-left-mikdee-250928.html

One more thing, what size is your prop? How many Blades, Diameter & Pitch ?

 

[Home Cookin']

Re: Boat pulling port hard when on plane and WOT

the tab as suggested is #1. Also if your motor is trimmed to far down, the bow will dig in and veer; try trimming up some.

the depth finder would have no appreciable effect.

 

[MikDee]

Re: Boat pulling port hard when on plane and WOT

A prop too big in diameter might be the problem, again what size, & type of prop do you have on there?

 

[MikDee]

Re: Boat pulling port hard when on plane and WOT

Most boats having a Right Hand rotation prop, have a tendency to pull to the left under power. If your prop is too big in diameter, this will make it worse.

 

[Mi duckdown]

Re: Boat pulling port hard when on plane and WOT

There should be a tension adjustment to keep it from doing that. All the tillers I own have them. some have them just under the cowl above the clamp. some, there is an adjustment screw on the swivel bracket. Heck I run my tillers hand off. they go straight. Not the smartest things to do, but oh well.

 

[dan02gt]

Re: Boat pulling port hard when on plane and WOT

If it's new take it to the dealer and have them look at it before you spend to much time on it.