Review on 🔧 High-Quality Replacement Piston Stop for Porter Cable FN250B FN251 Nailers - Model 904685 by Leroy Stanton

The mushroom tip broke off the ribbed body where the steel disc sits. The head gasket also ruptured. Where shards of plastic are everywhere. Wiped out and shaken out what he could. The air nozzle on the compressor hose blew out any remaining plastic. None of the repair videos show how to remove the ribbed casing (which is gripped by the cast aluminum head) when the mushroom end is broken like mine. After trying unsuccessfully with pliers, I finally started driving the screw in the center, thinking I was going to use it to pry the piece out, like a screw in a wine cork opener. Instead, opening the plastic case helped. The angled needle nose pliers helped break them apart and remove them. After making sure everything was clean, I removed the o-ring, lubricated it with silicon grease and put it back in place. hit again! The price is high. I bought a used nailer about a year ago and that plus the sealer was almost the cost of a used nailer.