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2000 SN Stiff steering |
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Waternut 
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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 Posted: May-26-2015 at 2:57pm |
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Well it turns slightly harder to the right but after installing grease on the packing, it isn't hard anymore. Left is a little more automatic is all. I'm not positive that 1/4" is the right size but the difference between the inside of the packing nut and the rudder shaft is 0.480" so a layer of 1/4" packing on each side would seem reasonable.
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Orlando76
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Joined: May-21-2013 Location: Mount Dora, FL Status: Offline Points: 3108 |
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Posted: May-26-2015 at 2:07pm |
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Seen your post on BOS about the same issue. I noticed here you didn't add the fact that the boat steers hard to the right. Do you think the 1/4" packing is too big?
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Waternut
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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Posted: May-25-2015 at 9:45am |
1/4" |
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Orlando76
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Joined: May-21-2013 Location: Mount Dora, FL Status: Offline Points: 3108 |
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Posted: May-25-2015 at 9:44am |
What size packing are you using? |
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Waternut
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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Posted: May-24-2015 at 9:15pm |
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3 rings didn't allow the tiller arm to sit flush with the top of the rudder. The only way to make it flush was to overtighten the packing nut which made the rudder extremely difficult to move even while stationary.
2 rings allowed the packing nut to sit lower but yes there is a little bit of up/down movement in the rudder now. About 1/8". |
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Gary S
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Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Posted: May-24-2015 at 8:02pm |
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Is there any up and down movement? I would think there would be when you had 2 rings of packing vs three. When you tighten the bolt from the top it's not pulling the arm down and binding it to the packing nut is it ?
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Waternut
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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Posted: May-24-2015 at 7:22pm |
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So I pulled the rudder and shaft yesterday to measure the two. The rudder measures between 1.244" - 1.246" on the entire length and the shaft measures 1.250 at the top and bottom. The inside of the rudder packing nuts measures 1.730-1.733.
Based on these measurements, I can't see how these parts are worn. There has to be something else wrong with this rudder that make it drag. We've tried 2 and 3 rings of 1/4" packing and the steering cable has been replaced without much change. The only thing that makes any difference is grease on the packing but even that creates more drag than any other boat I've driven. Maybe the stack up of all the parts is wrong or there is a piece missing or adjusted poorly. Below is the installed rudder. Is this correct? How tight should everything be? 
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Waternut
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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Posted: May-13-2015 at 1:05pm |
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The point loading causing issues under heavy rudder loading is certainly what it seems like.
So realistically the only fix is to either continue greasing the rudder shaft and packing regularly...or...replace both the shaft and rudder port because our current one is likely too worn? |
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JoeinNY
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Joined: October-19-2005 Location: United States Status: Offline Points: 5697 |
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Posted: May-13-2015 at 1:01pm |
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Installed with the packing reasonably tight it isn't going to move, however if there is a lot of clearance between the two it can point load the top and bottom of the port underway and not turn as easily. I have seen trying to keep the bends in the cable as sweeping as possible help a bit as well. I haven't seen an oil seal installed on one but it could be done...
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phatsat67
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Joined: March-13-2006 Location: Indiana Status: Offline Points: 6149 |
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Posted: May-13-2015 at 12:59pm |
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Usually excessive rudder shaft to port clearance makes for hard steering under load because it binds the shaft in the port barrel.
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Waternut
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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Posted: May-13-2015 at 12:55pm |
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There is no slop when it's installed. I could try to pull the rudder and measure both the rudder shaft and the rudder port.
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JoeinNY
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Posted: May-13-2015 at 12:49pm |
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How much slop is there between the rudder port and the shaft?
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Waternut
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Posted: May-13-2015 at 12:36pm |
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Bump...
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Waternut
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Joined: July-11-2012 Location: Macon, GA Status: Offline Points: 292 |
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Posted: April-26-2015 at 10:04pm |
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So we've changed the steering cable twice in about 5ish years and it didn't make any noticeable difference in steering stiffness. The steering is really easy when stationary but under power, it takes a lot of effort.
We inspected the rudder packing before replacing it to see what size we needed. When everything was reinstalled, we added some grease to the packing and the rudder shaft. This made a huge difference and the boat was a dream to drive! Figuring the packing was done for, we replaced the packing and reassembled everything with grease with fantastic results. After a couple weeks, it seems like the grease wears off and the stiffness goes back to crap. Any idea what's causing this? Is there supposed to be a seal or anything at the bottom of the rudder? |
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Orlando76 wrote: