In Reply to: Re: Ford 8N tractor starter won't disengage, Positive Drive type posted by JMOR on March 10, 2020 at 00:27:00:
A lot of older equipment was designed to last, constructed such that consumers could work on and repair items by themselves; whereas today, we're often dealing with engineered obsolescence.
When I was combing my way down through layers of problems on 8N tractor and obtaining necessary repair parts, I noticed that many of the aftermarket parts were of lesser quality/precision and flimsier/cheaper construction than OEM.
The replacement brass float was quite reasonably priced but I had to get some pliers and do a lot of reshaping/tweaking to get hinge pin to go through float and to fit properly.
It's necessary sometimes to utilize whatever replacement parts are available; in this case, original brass floats were leaking/filling with gas, had previously been soldered numerous times to repair spreading/enlarging cracks, and consequently solder added sufficient weight to render floats ineffective.
Henry Ford reportedly espoused the opinion that the Model T was perfect, needing no improvements, yet progress stands aside for no man, and few today would prefer a Model T over a MX-5 Miata.
So it is, we're dealing with improvements in old technology, whether we find that advantageous or not. Manufacturers have pretty much moved away from inertia Bendix, preferring solenoid activation instead.
I will be going through my Ford 8N starter Bendix today, and if I must replace it (as I have some other parts), it would not surprise me too much to find aftermarket replacements of lesser quality/reliability. Doubtless, one would prefer and expect to be better served by having an OEM repair part, but even good quality parts eventually wear and require replacement.
It is what it is: today one does what one may, using whatever's available with which to effect repairs.