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This is the whole pump... This is the boogered flutes... Those flutes ride against a spring on the crank which turns it, and the small shaft that goes inside the large aluminum barrel turns, and oil somehow gets pumped to the bar :^D I'd have to study it closer to know exactly how it...

I was thinking that myself, but I can't use a lathe. Brass would make a nice oiler gear.

It was stripped on the pump. On both, there's a section of about three plastic threads that are crushed. I haven't looked very carefully at the crank, but it looks like a spring that acts as a wormdrive to move the pump. The part numbers on both poulans are the same, and they're visually...

That's kind of where I'm at with this. It's a useful saw to me within certain limitations. An oem pump looks like it's about $20, and a Chinese pump about $8. I'd even pay the $20 if I thought it would last, and I wouldn't have to deal with it for years, but I'm not interested in the Stihl...

Got home from work, and decided to fool with the poulanpro. Got it apart, and the oiler gear was stripped. Not a big surprise. Everything was pretty well tacked up. Scavenged an oiler off a poulan carcass, got everything working smoothly with wd40, installed it, fired up the saw, and no oil...