Just put back together my new TZ after taking everything off the playfield, rebuilding clock and gumball, new flippers, rubber, bulbs, coil sleeves everywhere, etc., etc. Found a weird plastic piece in the backbox, white, about 1 inch long and 1/4" in diameter, with a longitudinal groove down the side, and the number 4 embossed on one end. Any ideas what this is? Game plays great without it, but I hate it when this happens!
Thanks!