I have a 1994 Johnson 15hp that I am rebuilding the upper motor
The original system is no longer available and junk anyway.
The original design used 1/4"x20 (about 2.5 inches long) from inside the exhaust
housing to the threaded steering
Both ends are exposed to salt water
and they used stainless.
My concern is the stress on a stainless bolt with my new design that will have less dampening factors than the original design and I am worried about stainless breaking as the originals did anyway.
Could I use a higher grade (non-stainless) bolt instead?
Something not as brittle as stainless that will hold up in the salt