Help with Edson wheel steering please - SailNet Community
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post #1 of 20 Old 12-13-2015 Thread Starter
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Help with Edson wheel steering please

Hi all,

I was in the middle of tracking down a rogue leak on a rainy evening which lead me down the path of removing the fiberglass headliner that covers the sheaves, steering cables, and quadrant of the Edson steering system on my H34. The good news is that I found the leak (running down the wiring bundle in the steering column). The potentially bad news is that I don't think everything is correct with my steering quadrant.

First - it appears as if two bolts are supposed to hold the two quadrant halves together. It looks as though they are missing or possibly even sheared off? This makes the two quadrant halves misaligned with one another. To better visualize this, imagine two semi circles that are not quiet on the same plane with each other. This does not make for an even surface for the cables to run on. It's kinda like a heaved sidewalk.

Second - after the cables leave the sheaves under the steering pedestal, it appears as though they join the quadrant at a slight angle. I'm not sure if this is normal or maybe indicates the cables are too tight and are putting a force on the quadrant that pulls it out of true with the cable run from the sheaves.

I will try to post a few pictures tomorrow. Thoughts?
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post #2 of 20 Old 12-14-2015
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Re: Help with Edson wheel steering please

If the quadrant is pulled out of shape by the cables you need a decent strength quadrant. Methinks that if the cables don't show wear against the cable grooves, close enough. The step between the two segments doesn't sound good.
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post #3 of 20 Old 12-14-2015
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Re: Help with Edson wheel steering please

Pictures would be helpful. If the bolts holding the quadrant together around the shaft are missing, what's keeping the quadrant on the shaft?

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post #4 of 20 Old 12-14-2015 Thread Starter
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https://www.dropbox.com/sh/fcx1we2j5...RyyUjahCa?dl=0


Here are some pictures to give you a better idea. Thanks for your help so far! I'm not sure how long it's been like this but the other day I had a guy feeling the steering felt a little "off" when I had the boat out yesterday.
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Re: Help with Edson wheel steering please

I see numerous issues as I am sure some pros will point out.

Appears your quadrant has slid down the shaft causing a bad alignment. Loosen and raise it up till the cables line up properly and retighten with blue loctite.

Your missing some bolts holding the two halves together. Replace and loctite.

The bolts that go through the deck holding the top bearing need backing plates or fender washers. Loctite.

The rubber seal doesn't look well secured and I believe it should have four clamps not three.

Don't sail this boat till you have this sorted. Did you find any bolts or clamps in bilge?


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post #6 of 20 Old 12-14-2015 Thread Starter
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Thanks for the help and observations. I was not able to slide the quadrant up the shaft because it has a fixed hole in the shaft that a long bolt goes through. However, when I tried to press up on the quadrant, I realized the the entire shaft was moving up. I opened the lazarette where I can see the shaft come through, and it looks like one of the thick plastic/nylon rings around the rudder shaft, that I assume is supposed to be a low friction bearing, has worn away to probably half the original thickness. I'm not sure what the part is actually called. I assume this allowed the shaft to drop lower and lower. It also appears that the quadrant was starting to make contact with one of the back panels of the quarter berth which would have increased tension etc.

I believe with a new bearing ring/collar/whatever it's called the quadrant will be correctly aligned again and the wheel turning smoothly. I'll use your other suggestions also. Thanks again for all the help. I'll post a picture of that collar when I get a chance.
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Re: Help with Edson wheel steering please

Quote:
Originally Posted by Effit View Post
https://www.dropbox.com/sh/fcx1we2j5...RyyUjahCa?dl=0


Here are some pictures to give you a better idea. Thanks for your help so far! I'm not sure how long it's been like this but the other day I had a guy feeling the steering felt a little "off" when I had the boat out yesterday.
There are some bolts missing there, have you tried to locate the missing bolts.


The alignments seems at bit off, it could be bad install after servicing or a fault by the yard.

If it has become miss aligned you should be able to find marks on the shaft
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Re: Help with Edson wheel steering please

Hey,

You are definitely missing the two bolts. From your description, it sounds like one of the rudder bearings has been worn away.

On my O'day 35 (pictured), the bearings were very thin, less than 1/4" and the rudder shaft slip up into the fiberglass tube.

good luck,
Barry
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Re: Help with Edson wheel steering please

The above advice sounds good. I might add: check those cables. Take some kleenex tissues and lightly oil the cables with 30 weight oil. The kleenex will leave bits of paper if you have hooks. You need to be sure the cable has not been damaged. Here is the link that suggests this:
http://www.edsonmarine.com/support/P...eringGuide.pdf

Good luck on your repair. I also would not take the boat out until you get this sorted out.


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post #10 of 20 Old 12-15-2015 Thread Starter
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https://www.dropbox.com/sh/fcx1we2j5...RyyUjahCa?dl=0


I added a few more pictures showing the bushings. The bottom one in the stack was screwed down without countersinking the heads. The middle one was left to spin freely, the top one is secured to the rudder shaft with a bolt. The result was that the middle bushing was ground down over time allowing the rudder shaft to slowly sink lower and eventually to start binding.

I'm having a new middle bushing machined out of derlin and when that is installed it will correct the alignment of the quadrant.

The big question is, do I drill/countersink/secure the middle and bottom bushing, out do I just countersink the bottom bushing and allow the middle one to spin freely like before (without the screw heads grinding it away)?
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