liberty
ArboristSite Operative
I just reassembled my 575 xp. I nstalled new crank bearing and piston and rings when i realized I did not install the crankshaf cups. I now have to split the crankcase again. What do the crankshaft cups do? I nstalled bearings with rubber seals on both sides.. Dumb question but are they really necessary? What was the trick again to disassemble the crank halves without thy special tools? I believe it involved ]a rubber mallet. Thanks