I think I understand the question now. There is about 2-3" of "dead zone" -- when I turn the wheel the first two or three inches do nothing. Then she turns.
And when underway every couple of minutes I adjust the wheel to get myself back on course.
I did discover that if I hang Algae off the far port quarter that she seems to stay on track a bit longer (sometimes as long as five minutes)
I've tried trailing Algae at the center. I've hoisted her bow so only the final foot is in the water. The only time I've had any success at holding a course is when Algae is tight to the boat and right at that aft corner. The drag seems to aid in tracking.
A neighbor said that he knew someone with the same situation in Matecumbe (FL Keys) who ended up adding bilge keels to allow that boat to track. Several Schuckers have added them, most likely to eliminate roll.
(Seaweed does not roll. She pitches.)
The idea of passively solving the tracking problem appeals to me. I fear boatyards and the pirates that run 'em.
For now steering is adequate. You know FF, I live on a boat in Florida. The northeast is being hammered by snow. There are so many who would wish and dream of my life. I truly am blessed. And I know it!
My Kidlet returns to town (Tampa, across the bay) in February and then I'm free. In the meantime I'm loading ship's stores and getting my girl ready to travel. Life is marvelous afloat.
Side Note: I really appreciate all your advice re my cooling system. We did cut off the box and are using the inside part as my stainless riser. It's wrapped in heat shield. A local shop, Lizotte's Welding (Todd) in St. Pete, FL [phone: 727-343-7690] cut off the box part, polished up the pipe and even marked where the raw water "in" pipe ended.
Picture taken before the old monster heat exchanger was removed. I am using a Kubota generator one, about the size of a liter bottle of water.
Anyway, a HUGE thanks for your input on that part of the engine swap. I'm glad I went with what everyone else has ... and replacement is off the shelf/easy to do should there be a problem down the line. You were right: I wanted what I had to work, but in the end changing was the correct decision. Thank you for your patience while I came to that realization.
I love my new engine. The mechanic only has a couple minor things to do and I'll be off. The list is: #1) hook up fuel return line, #2) attach throttle and shift cables, and #3) install a shut down switch.
My "genius" idea on BOB engine was to have a fuel shut off valve. Perfect, except that from the time I closed off the diesel it took 30 minutes to run through the fuel in the line. That was one of those "good in theory" moments...!
J