Two problems with my boat.

Tagerman

Seaman
Joined
Jul 13, 2010
Messages
69
I have a 1985 Four Winns 170 Horizon bow rider with the Mercruiser 3.0 I/O 140. Had the boat on the lake twice this season since I cleaned and fixed the interior and I have noticed two problems I would like your advice on. Problem 1 is the steering. The boat is very easy to steer left and hard to steer right but easy to steer left so I figure I would replace the steering cable. I think I can figure it out because I'm a mechanic (all be it not a boat mechanic) but I'm not sure where to get the cable or how to know I'm getting the right thing. Problem two is the shifting. The boat shifts into to foward great and into reverse with no problems. It seems though when I put it in what should be neutral the boat still wants to go forward. I'm confused as to whether something is wrong with the adjustment and I need to adjust the linkage to make my neutral zone bigger or is it just the exhaust pushing the boat. (I have the motor timed up a little so it idles smoother.) And one more question where could I find the size of my gas tank. When i fill it past 10 gallons it seems to like to spit gas back up if i pump very fast. Is this just normal or do I have a problem, or is my gas tank just tiny. Any help would be amazing guys.
Thanks,
Trent
 

joenapier

Seaman
Joined
Sep 23, 2008
Messages
72
Re: Two problems with my boat.

Check the aluminum anode trim tab above the prop. It looks like a little silver fin. It is designed to counter the rotation of your prop and could give you the problem you have.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,089
Re: Two problems with my boat.

Ayuh,... As Joe said, Check,+ adjust the torque tab mounted above the prop,...
that should fix the steering issue....

The shifting issue sounds like the shift-interupt switch is disconnected...

The gas tank issue is probably related to the tank vent,+ how it's routed,...
You'll just have to Look...
 

sethjon

Senior Chief Petty Officer
Joined
Jun 8, 2010
Messages
692
Re: Two problems with my boat.

The spill or blow back when filling up is normal.
 

Tagerman

Seaman
Joined
Jul 13, 2010
Messages
69
Re: Two problems with my boat.

I'll check on all this stuff this weekend, really appreciate the help guys
also do any of you have a picture of the aluminum anode trim tab?
 
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