Rudder Tension 1980 H37C

Status
Not open for further replies.
Jul 29, 2012
80
hunter 37 cherubini Apollo Beach
I have the pedestal off for refurbishment and the cables are disconnected. The rudder moves by hand but takes some pressure to move it (maybe 10 pounds). Anyway to check this? I know there is a stuffing box for the rudder.

Any suggestions on what I should check/replace would be appreciated
 
Apr 3, 2007
73
H37 Cutter 37c L.A. (Lower Alabama)
If you are in the water, that big ole rudder creates considerable resistance. In my experience, 10 pounds is not excessive. That's why you have all that gear ratio in the pedistal/quadrant. If you are out of the water, then you may have a problem.
 
Jun 8, 2004
1,065
C&C Frigate 36 St. Margarets Bay, Nova Scotia
I agree with Richard - out of the water, with no steering cables attached, the rudder should turn fairly easily by hand. Only friction is really from the plastic bearing on top of the shelf in the lazarette and the stuffing box...10 Ft lbs to get it swinging might be OK. Check for side to side and fore and aft play in the bottom bearing (where the shaft exits the hull) while you are at it. I rebuilt this bearing a couple of years ago using the West System approach - injected epoxy & graphite basically. Big improvement.
 
Sep 7, 2011
279
Hunter 1980 37c Illinois
Jim, Is there actually a bearing or are you calling the tube where the rudder shaft enters the boat a bearing?
RB
 
Jun 8, 2004
1,065
C&C Frigate 36 St. Margarets Bay, Nova Scotia
Jim, Is there actually a bearing or are you calling the tube where the rudder shaft enters the boat a bearing?
RB
Rick, no real lower rudder bearing on the H37C - just the fiberglass surface inside the tube. If there is too much play, drill some small holes and inject some epoxy and graphite mixture in there (AFTER dropping the rudder and waxing the rudder shaft really well!). The upper bearing (well, I guess its really a bushing) is that block of white plastic on top of the plywood shelf.
 
Sep 7, 2011
279
Hunter 1980 37c Illinois
That is what I thought... Got somrthing going in the mail your way... JIM
 
Oct 1, 2012
25
Hunter 37 c Ventura
This may not apply to your question, or your boat, but my '82 37C marine survey noted the wheel had excessive play. In my boat, a large wheel is attached to the rudder shaft by cables, and I was able to tighten the cables from below- a tight fit! The big revelation came when I noticed the starboard cable had small shreds of rubber on it. These came from the exhaust hose, routed up-and-over the cable, but contacting it. The result was an exhaust hose nearly cut through by the rudder cable! I can only imagine what a disaster having the aft of the boat filled with diesel exhaust and warm saltwater would have been. My fix was a cross-member to hold the exhaust hose up and away from the rudder cable. I mention this in case you or anyone else might be in a similar situation- it's worth a look while you're working back there.
 
Apr 25, 2007
64
Hunter Cutter 37 Jacksonville, Florida
Hey MJ, I have an 84' 37C and I've taken the rudder out many times, finally replaced it after many years because it was slightly bent, modified the bushing on the inside top, repacked the stuffing box and had it off twice, etc, etc. Just yesterday (if you can believe this), I had to disassemble the whole thing including taking the cables off the quadrant, just to get the shift/fuel cables out so I could cut a tie-wrap holding the old GPS cable, just so I could get it out of the pedistal. It wasn't too bad this time as I had already taken it apart many times already. Oh did I mention that I replaced the pedistal bolts (aluminum !!! ), replace the cable assembly, as well as the pulley assembly on the bottom just a year ago when all that rotted out enough to warranty R&R? To answer your question, I found that when adjusting the cable tension, it's good to have it in the water, have everything put together so you can turn the wheel and cause the rudder to move. If you yank on the wheel hard one direction then another (like you would have to coming into some of these passes in florida when fighting current), you'll see slack appear in the cable. If it's enough slack so that the weight of the cable itself causes it to fall out of a track on the quadrant or pulleys, then it's too loose. PS, best thing I've done to the whole steering systems was to make sure the emergency tiller works. I've not have any reason to use it, but, you know, .... right? Email me at sailh37@yahoo.com if you want pics on the repairs I did. I've tried to share them on this site, but that part of the site just doesn't work worth a hoot... (ps, I'm a web developer of over 30 years, I'm qualified to trash it.)
Kb
 

Blaise

.
Jan 22, 2008
359
Hunter 37-cutter Bradenton
The rudder is about 40 lbs positive bouyant. It will cause friction against the hull. What you see is normal.
 
Status
Not open for further replies.