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Just got an email from Jack Tyler on Whoosh. He had a little scare
yesterday when he started feeling a lot of vibration in the aft end of the
cockpit. Fearing a problem with the rudder he emptied the port cockpit
locker and climbed in to investigate. Turns out the vibration was caused by
a log of salt encrustation on his SailOMat vane steerer, but down there he
discovered a plastic bushing on the rudder post that appears to be intended
as a bearing surface where the rudder post goes through the wooden brace
just above the stuffing box. Jack discovered the bushing had ridden up the
post and was no longer providing a bearing surface for the post. With the
bushing out of the wooden brace there was some slight movement of the rudder
post. He was able to push the bushing back down into the wood and then put
a hose clamp around the rudder post to hold it in place.When i got his email I stuck my head down in the lazarette and son of gun I
have the same issue. I posted a picture of the bushing at
http://drop.io/pearson424, called PlasticBushing.jpg. Notice the o-ring on
the bushing. This must be a fitting intended for a different purpose, but
used by Pearson because they had them available and they fit the rudder
post.I can’t get any pressure on this bushing from the lazarette so I’ll probably
have to go through the port locker as Jack did.Anyone else notice this issue on their boat?
I’ve had to tighten my rudder post stuffing box every couple of years. I’m
suspicious the slight movement in the rudder post with the bushing out of
the wood might have caused the stuffing box to loosen.This also brings to mind the rudder post is one of the most inaccessible
devices on the boat and a lot of us only deal with it when a problem
surfaces (like vibration or a leaking stuffing box). Anyone made any
modifications in this area they would like to share.—
Regards,
John Stevenson
http://www.svsarah.com
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Mine rides up the shaft also. I pop down there on occasion and push it back down. One of these days I was thinking of putting a hose clamp on there but haven’t gotten a round “toit” yet.
alan— On Thu, 4/29/10, John Stevenson <> wrote:
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John,
Many thanks for sharing this and for posting the picture. One more
thing I will check on my boat.Pete
On 4/29/2010 2:06 PM, John Stevenson wrote:
Just got an email from Jack Tyler on Whoosh. He had a little scare
yesterday when he started feeling a lot of vibration in the aft end of the
cockpit. Fearing a problem with the rudder he emptied the port cockpit
locker and climbed in to investigate. Turns out the vibration was caused by
a log of salt encrustation on his SailOMat vane steerer, but down there he
discovered a plastic bushing on the rudder post that appears to be intended
as a bearing surface where the rudder post goes through the wooden brace
just above the stuffing box. Jack discovered the bushing had ridden up the
post and was no longer providing a bearing surface for the post. With the
bushing out of the wooden brace there was some slight movement of the rudder
post. He was able to push the bushing back down into the wood and then put
a hose clamp around the rudder post to hold it in place.When i got his email I stuck my head down in the lazarette and son of gun I
have the same issue. I posted a picture of the bushing at
http://drop.io/pearson424, called PlasticBushing.jpg. Notice the o-ring on
the bushing. This must be a fitting intended for a different purpose, but
used by Pearson because they had them available and they fit the rudder
post.I can’t get any pressure on this bushing from the lazarette so I’ll probably
have to go through the port locker as Jack did.Anyone else notice this issue on their boat?
I’ve had to tighten my rudder post stuffing box every couple of years. I’m
suspicious the slight movement in the rudder post with the bushing out of
the wood might have caused the stuffing box to loosen.This also brings to mind the rudder post is one of the most inaccessible
devices on the boat and a lot of us only deal with it when a problem
surfaces (like vibration or a leaking stuffing box). Anyone made any
modifications in this area they would like to share._______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
Post generated from Pearson424 Forum using Mail2Forum
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John
Tell Jack to check the rudder stuffing box assembly. It is glassed in place and held down by four nuts on studs. Lateral load is carried by the stuffing box, instead of the plastic bushing.
Clairebuoyant Surveyor found stuffing box nuts were eaten by corrosion but studs and stuffing box were OK. Pearson probably used brass nuts.
Quent -
Doing some major plumbing refit work and took apart the laz to get better access and to paint. Found witness marks that indicated leak around the rudder stuffing box flange base, as well as the stuffing box itself. In loosening up the nuts I broke off two of them. They are glassed into the hull. Dug them out and glassed in a couple replacements. Built the area back up with epoxy, creating a flat surface.
http://picasaweb.google.com/SeaDuty424/Boat?feat=directlink
Bedded the whole unit back in with 5200. Dropped the rudder for this project, if you have not done this the shoe at the base of the skeg is threaded for the 4 silicone bronze screws that pass through it. Had to drill them out, the screws wouldn’t turn. Once the thread ends were drilled the screws backed out toward the head end. The bronze shoe casting will be brazed and re-threaded.
Lastly, needed a torch to heat up the shoe to get it off. It was bedded with a healthy amount of silicone as was the rudder stuffing box.Chuck
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Chuck,
The photo link should read
http://picasaweb.google.com/SeaDuty424/Boat?feat=directlink , without the
[/img] at the beginning and theat the end.
Tor
SilverHeels, P-424 #17
http://www.silverheels.us
Original Message
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It looks from the picture like there is no lateral support for the stuffing box other than the four bolts holding it down. Some rudder stuffing boxes, but not this one, extend down into the hull around the rudder shaft.
I think maybe more lateral support at the upper end or the rudder shaft would be helpful, at least more than the plastic bushing provides.
Found a bronze skeg bearing at Hamilon Marine part number BKA-83150R. Installing means removing autopilot tiller and steering quadrant, a winter job.
Quent
Clairebuoyant #132 -
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while you are linking a picture – really what you are typing in is a url
so you needed to use the URL tag and not the IMG tag.i’ve edited the post
– pat
Chuck Ruble wrote, On 11/2/10 2:24 PM:
What am I doing wrong with the link to the photo?
Chuck
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There is also a huge timber below the quadrant that provides lateral
support, in theory.I’m not being short. This is from my mobile.
On Nov 3, 2010 10:13 AM, “Chuck Ruble” <> wrote:Quent, there is lateral support. The stuffing box has a collar on the
bottom of the flange that extends down into the rudder tube about 3/8ths of
an inch.Chuck
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Thanks, Chuck. Couldn’t figure that out from the picture with rudder removed. That’s much better than I feared. I’m aware of the lateral timber under the quadrant, but as others have noted, the plastic bushing in the hole in the timber doesn’t do much.
I contemplated replacing the plastic bushing with a bronze one, but now think that the possibility of the bronze bearing binding on the rudder shaft outweighs any advantage. Time and money go to next item on the list.
Quent -
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