outdrive alignment indicator?

[sgajan]

1988 omc cobra outdrive is what i have. Above the prop and bolted directely under my hydrofoil is a small adjuster is what it looks like. it sticks down about 3 inches, it has a arrow on it that points to numbers 1-5
what could this be used for? is it like a steering alignment?

 

[sgajan]

Re: outdrive alignment indicator?

I cant even find a outdrive diagram with it online. I see all the lower units have a place for it. A round indent on the lower unite above the prop.