Ring Groove Cleaner Tool - Chevrolet Trailblazer Service Manual

Old gasket material and varnish or sludge can usually be removed using a scraper and/or
cleaning solvent. Hard to remove deposits may require the use of a power drill with a wire
brush. If using a wire brush, use extreme care around any critical machined surfaces (such
as the gasket surfaces, bearing saddles, cylinder bores, etc.). Use of a wire brush is not
recommended on any aluminum components. Always follow any safety recommendations
given by the manufacturer of the tool and/or solvents used. Always wear eye protection
during any cleaning process involving scraping, chipping or spraying of solvents.
WARNING
Always wear eye protection during any cleaning process involving scraping, chipping or
spraying of solvents.
Remove any oil galley plugs, freeze plugs and/or pressed-in bearings and carefully wash
and degrease all of the engine components including all fasteners. Small parts such as the
valves, springs, etc., should be placed in a metal basket and allowed to soak. Use pipe
cleaner type brushes to clean all oil and coolant passages of all the engine components.
Use a ring expander and remove the rings from the pistons. Clean the piston ring grooves
with a special tool or a piece of broken ring. Scrape the carbon from the top of the piston.
You should never use a wire brush on the pistons. After preparing all of the piston
assemblies in this manner, wash and degrease them again.

Ring groove cleaner tool