40Re: [j4x-owners-group] Rudder Bearing J42
- Jul 21, 2008I just went through Rudder bearing replacement on #78 in May. It
wasn't bad enough for the packing to leak, but I could feel a slight
catch sometimes. When it came out, it looked a lot worse than it felt.
My upper bearing was toast as well (both Harken). The sleeve was too
corroded to reuse, so it was two new bearings and a new sleeve. I'll
give you the details here in case it might be of interest. My bearing
install was factory. I have heard of second replacements that were a
bear because the lower bearings was epoxied into the housing, or some
The bolts in both the steering and auto quadrants were firmly corroded
into the quadrants. We were able to drop the shaft through the
quadrants and deal with the bolts at the machine shop. It took quite
some convincing to pop the lower bearing out of its housing, but once
done, the entire assembly slid out. Both the bearing and sleeve had to
be removed destructively.
I used Jeffa for both the top and lower bearing. The self-aligning top
bearing made refitting the bottom end much easier. The top bearing was
easy: bolt in. The bottom bearing was placed loosely on the rudder
shaft followed by the new sleeve, which sits on top of the inner race.
Once everything was lined up (using the set screws and wedges to set
the alignment) and looking good, we dammed up the sleeve and inner
race with putty and poured epoxy into the sleeve and let the whole
thing set up. After the epoxy had set, we checked the movement to make
sure there was no binding and then reassembled the stuffing box and
quadrants. The bearing was a snug fit in its housing and we were
careful not to epoxy the bearing into the housing. The outer sleeve of
the bearing does extend maybe 1/8-1/4" below the aft edge of the
housing. Ended up $1700 + bearings + sleeve.
On Mon, Jul 21, 2008 at 1:38 PM, dc1reg <dc1reg@...> wrote:
> I'm about to have "Maine Sail" (hull #48) hauled with lower rudder
> bearing problems. I've read the detailed discription of the bearing
> replacement on "Jaywalker" and the J40 posts on this site.
> I believe my boat was built with the Jefa bearing but Edson may have a
> replacement as well. Anyone else had replacement experience that might
> be helpful please let me know.
> Diok Greene
Bill Connor, Principal
Blue Hole Software
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