View Full Version : torque on steering wheel
August 28th, 2009, 09:53 PM
After my boat gets on plane I can not find the sweet spot by using up or down on my trim buttton. My steering torques to the left . I recently replaced the trim tab on the outboard . Do I need to put more of an angle to counter the torque of the prop or do I have another problem ?
August 29th, 2009, 04:45 AM
Turn the torque tab rear to the right.Should unless running very high up eliminate it.
The sweet spot is determined by the boat and prop grip its a feel or top speed either one,speed drops off when trimmed to much,and in rough water trim down .One sweet spot is total speed top end ,others are handling of the boat at various speeds ,.slow down trim down,etc.
Seat time is the cure.
August 29th, 2009, 06:53 AM
Ok First off welcome to the boards. Ifn when trimming up the torque is not lessened you prolly still dont have the tab adjusted right. What boat and motor ya running and as well what prop. Maybe we can pinpoint the problem.
August 29th, 2009, 07:26 AM
Thanks I have owned two bass boats a 1974 dtr ranger w 85 chrysler and a cajun II that had a 50 johnson both boats would only run about 45 mph w speedo .know I know that speedo not very accurate.
The pad boat is a different animal. I did get to drive one of my fishing buddies bumblebee bass boat and had no problem finding the sweet spot on his boat.
what is funny is when I tried this boat it had a dole fin and no trim tab. The guy i bought the boat from bought it from his stepmpmom after his Dad was killed on a motor cycle accident. No offense to the son but he had no knowledge of how to drive a bass boat . He ran the boat trimmed down all the time . When I drove it I used the trim and tilt and brought the boat on plane and it felt good .the torque was not there.
On third outing hit a rock bent prop took prop to Dan in Soddy-Daisy Tn repaired prop 131/4 X 27 shooter 4 blade . Dan and Todd Morgan at C and O said to remove dolefin. and recommended a 24 raker 3 blade and jp .
any advice greatly appreciated
August 29th, 2009, 07:31 AM
What boat/HP is this on?
August 29th, 2009, 07:37 AM
Sorry for long post but i think you need to know my experience and boat history to diagnose problem
Current boat is 1991 363v Ranger w 1991 fastrike johnson . Which I have been told is actually a 175 hp under a 150 hood. supposedly johnson got in trouble that year for doing this
anway some superficial damage was done to the skeg but it is not bent as i can tell . how far should i turn tab to right there are marks on the tab
August 29th, 2009, 07:43 AM
Try staring about half way. If your looking at the back of the motor be sure you turn the tab so that the fin points to your right. Whats your wide open RPM with the shooter?
August 29th, 2009, 08:34 AM
between 5500 and 5700 do not know if i can trust tach It set at 200 rpm when turned off anway to calibrate it
August 29th, 2009, 08:55 AM
Yea you could drop to a 24, and the raker would be a great choice. It wouldn't hurt to run that motor up to 6000 rpm. Holeshot would improve...
August 29th, 2009, 10:13 AM
holeshot is not bad now a little slower but ok . How much damage to the skeg does it take to affect the speed and handling. What was the purpose of the dolefin since the owner is deceased and the son does know I can't figure out what was the reason for the dolefin
August 29th, 2009, 11:06 AM
First of all you want the skeg to be straight, smooth and the leading edge sharp. Any rough spots can and will create drag and disturb the flow of water to the propeller. these spots can also create cavitation burn to the prop itself, I have seen cases so bad that will eat the metal, normally in a straight line and have a pitted look to it on the face of the blade. Its called burn because the water travels across the rough metal so fast it will make the water boil.
The fin is used simply to push the stern of the boat up while getting on plane, this works best with the engine trimed all the way down or in, as some people say. It will cut the time in half to plane. Some boats need them, some boats don't. A stern heavy boat say like my personal boat really needs one to aid the plane. Some props will make the bow pop up when nailing the gas, some 4 blade props will do this.
August 29th, 2009, 05:42 PM
Thanks to everyone who anwered my post .:You_Rock_Emoticon:
vBulletin® v3.8.4, Copyright ©2000-2013, Jelsoft Enterprises Ltd.