chrismac7
New Member
Has anybody else had this . problem its very hard to find information about the bearings . It would appear that there is a nylon bearing and a ball bearing in the bottom but is there anything in the tube to the cockpit tiller
bruce roberts grp spray 28 seized rudder
- Thread starter chrismac7
- Start date
Bilgediver
Well-Known Member
When you say ball bearing in the bottom do you mean in the skeg below the rudder? This is not a good idea as water will get in and cause seizure!
Is the boat out of the water? Can the rudder post be split at a flange under the stern above the rudder?
chrismac7
New Member
The plans for the steel, and wood version show a nlon insert with the post resting on a ball bearing. This is in the skeg below the rudder . These boats were made by humber boats.Bruce roberts never designed for grp so infomatio n is not available.
Tranona
Well-Known Member
The only way to find out is to take it apart. Composite bearings such as acetates (Delrin is a common name) are commonly used - nylon not a good idea as that absorbs water and swells.
Bilgediver
Well-Known Member
It must be very difficult to prevent corrosion problems with a submerged bearing. or does the post rest on a large single ball? Where does the rudder post split in two?
chrismac7
New Member
The boat is on land and the skeg is attached to the keel by 5 bolts. The problem is if there are bearings in the tube leading to the tiller the rudder will have to be dropped not an easy job.i the rudder does rest on a single ball
Tranona
Well-Known Member
There is likely to be a bearing at the top, another at the point where the rudder tube exits the hull and one in the heel fitting at the skeg. The middle one is the most likely to give trouble particularly if it is not made of the right material. As I suggested the only way to find out is to remove the heel fitting from the skeg and drop the rudder.