Adding one more reply to Fred's question -
For us removing the donut collar was very difficult. The set screws likely
had mangled some threads and this caused threads to seize / shear within
the collar when unscrewing it. Our collar appears to be stainless steel, so
definitely a difference from
Hi Fred
We had no problem removing the set screws in the thrust collar and used a
chain wrench to grab the round nut. The rudder was supported while this was
done. It might be worth moving the nut back and forth to reduce thread
damage on the rudder shaft caused by the set screws. Using the wheel
