Heating the wrist pin is the least likely step because it will cause the pin to expand and prevent it from fitting into the connecting rod and piston bores. The bores in the piston and the rod should be aligned before pressing in the wrist pin; the small end of the rod should be heated before pressing in the wrist pin; position marks on the piston and rod should be oriented properly before pressing in the wrist pin.
Y
Both
Z
Tech Y says a special puller and installer tool is required to remove and install the vibration damper. Tech Z says if the inertia ring on the vibration damper is loose, the damper must be replaced. Which tech is correct?