Re: New starter not disengaging
My next guess, is that you bought a cheap aftermarket starter or a reman in order to save a few bucks, and it needs a shim or 2.
Volvo (or Mercruiser) haver never used or needed shims on there starters and I NEVER had to uses shims in 15 years of starter changes where I worked in Alaska. But we always used OEM parts.
Now that I work where they think aftermarket stuff is king, I get to pull aftermarket/reman starters 2 or 3 times to shim them so they will work.
Customers don't want to spend an extra $50 for an OEM starter, but they spend an extra $150 from me to screw with shims on an inaccessable starter. But, they do complain about the extra labor involved and wonder why.