I have approx 20 1950 OMCs with broken, spring-loaded, minimum idle adjustment screws.
Marine Engine has a replacement (0304573) that looks like stainless for $35, and a nylon (maybe plastic) screw with spring (0437966)for $55 each....mulitplied x20, that gets expensive!
Is there any reason I can't just put a standard screw there, after filing the threaded end smooth and round? I realize I will need a screwdriver to adjust it but that's no big deal. I'm thinking that maybe stainless screws won't rust. I may need to put a nut on to tighten against the mating part to keep it from vibrating loose, even with the spring on it. or - does anyone have an inexpensive source for nylon screws that will work, even if a screwdriver or small hex wrench is needed to adjust?