Piston Rings

The piston rings need to be moved to the new TN / BMP piston.

I used a scribe, but any sharp probe should work.

DO NOT LOSE THE RINGS!  They can fly off if you aren't careful.  I am not aware if replacement rings are available. 

Reassemble the rings with the notches staggered.  This prevents gas bleed and ensures the piston will operate properly.

Wrong:     

Correct: