Still fighting with Poulan 25 Super Deluxe. Ordered, received and installed complete NOS oil pump, lines and gasket, purchased from a guy who's mother should have named him Jesse James. Damn those hen's teeth are getting expensive. Having difficulties getting flywheel nut to screw on. First time I've run into this issue in over 35+ rebuilds. Likely happened when tapping off flywheel, instead of using a puller. Waiting on Monday to pick up a metric tap and die set to clean up threads, even though they look okay. The variety of nuts I got at Ace just won't turn more than a thread, or two. Dang the bad luck!
Hate to tell you but that Poulan flywheel nut will not be metric, made in the good ole' USA