Frigidaire Pumps
The 1-18 is a variation of the Rollermatic mechanism used in the 60's solid tub machines. Probably to make more room for the larger, perforated tub, the motor was mounted differently and a belt used to transfer power to the shaft that drives the rollers & pump <br
Typically the Frigidaires have "average" pumping capability for draining, the unimatic pumps were a little weaker than later models but since the pump was operating anytime the motor was running at full speed, there was plenty of time to pump away the water in the outer tub. The additional weight of the water at the beginning of the spin cycles in solid tub machines also provided some ballast in the critical balancing stages of spin. It doesn't take too many RPM's to throw the water from a solid tub, the Frigidaires were usually fairly quick to get the water into the outer tub. Other solid tub washers, like the Maytag AMP were comparatively very slow. <br
The 1-18's have a strong drain pump in them, in part because the two speed models started the spin-drain in low speed and then switched to high speed after a couple of minutes. The 1-18 recirculation was a lower flow rate, the lint filters were meager at best anyway, quickly clogged with even a moderately linty load. My Westinghouse top-loader is the same way, filter pan is constantly clogged, but sometimes it's only about the beauty, style and drama rather than actual function ;-)