pulling to the right

JimboJames

Cadet
Joined
Jun 1, 2010
Messages
10
Ok now I got some of my motor issues work out now my boat turns hard to the right because of the motor torque. Here is a picture of how my exhaust tab is turned. It is set all the way to the right. I think this is how it supposed to be set. My steering wheel likes to rip on my arms pretty hard.

DSCN0684.jpg
 

john from md

Commander
Joined
Apr 13, 2008
Messages
2,184
Re: pulling to the right

What kind of engine, boat and what speed is it ripping your arm off.
 

JimboJames

Cadet
Joined
Jun 1, 2010
Messages
10
Re: pulling to the right

John you been helping out quite a bit. I have a 70HP on a 16hp 1973 mark twain boat. Now the boat runs right I cannot get it to steer straight.
 

wan2live

Petty Officer 2nd Class
Joined
Jun 20, 2007
Messages
146
Re: pulling to the right

Is that a hydrofoil on top? it looks weird if it is, is it home made or something? maybe it is warped? no clue but that looks weird as I said a few words back.
 

JimboJames

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Joined
Jun 1, 2010
Messages
10
Re: pulling to the right

I am pretty sure that's what is. It was on my boat when I got and I am some what new to outboards. It is flat across the top.
 

wan2live

Petty Officer 2nd Class
Joined
Jun 20, 2007
Messages
146
Re: pulling to the right

I am pretty sure that's what is. It was on my boat when I got and I am some what new to outboards. It is flat across the top.

I am not 100% sure but it looks like it is home made from the photo. You can remove it and see how the boat performs without it. I bought a universal "whale tail" or hydrofoil and it helps with cavatation and other things but I have noticed the when turning left the wheel it a little harder in that direction than it was without it. It will not hurt anything if you take it off to try.

The exhaust should not be moved all the way to the right, that will make you pull to the right too as if it was set all the way to the left you would pull to the left. There is a bolt that secures it in place, you can loosen it and adjust the exhaust closer to the center, you will probably need to adjust it a few times until you go as straight as you can. The exhaust acts as a annode too.



That's my 2cents
 

john from md

Commander
Joined
Apr 13, 2008
Messages
2,184
Re: pulling to the right

As the others have said, remove the hydrofoil, set the exhaust snout to center and try it out at THE SPEED MOST USED. The reason for this that triming the engine will work for one speed only. If you tow skiers and boarders at WOT, then check it at WOT.

The exhaust snout on a Chrysler/Force engine acts as a trim tab also. The proper way to adjust it, is to move it in the direction that the boat is pulling. Do this in small increments until you balance out the engine forces.

Hydrofoils serve, for boats without electric trim tabs, to get you up on a plane faster and give you a better hole shot. The down side to foils is that in turning, they put a great deal of side loads on the engine and steering. Take a turn too tight and fast and you can wind up upside down. :eek:

If you are handy, a better solution is installing Smart tabs. These are actuated by water force against a gas strut and they work really well and give much better helm control. Do a search if you are interested, they are relatively cheap, @ $125 and easy to install.
 

JimboJames

Cadet
Joined
Jun 1, 2010
Messages
10
Re: pulling to the right

I am going to try to remove the hyrdofoil and center the exhaust snout and see what I get.
 
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