ORIGINAL: jmb52760
I am having second thoughts about the Rossi. I am trying to rebuild it with new bearings, but I can't get the fool thing apart. The piston liner is currently stuck halfway out. I heated the case to 300 degrees and pushed a piece of plastic into the exhaust port from the top and turned the crank (with a prop hastily bolted on). That worked, but only as far as the piston will push it. Any suggestions?
If the interference is still too great to pull the liner out you can reduce it further by making the liner cold and the case hot. Try cold soaking the engine in the freezer a couple of hours. Then heat the outer barrel with a flame while pulling on the liner. A gas stove works well. Just try not to heat the liner and work quickly. It should slide right out. I don't own Rossi's but I have successfully removed stubborn liners from other brands doing this.