Cleaning - Ford Ranger Maintaince And Repair Manual

HOW TO USE THIS BOOK

CLEANING

Before the engine and its components are inspected, they must be thoroughly cleaned. You will need to
remove any engine varnish, oil sludge and/or carbon deposits from all of the components to insure an accurate
inspection. A crack in the engine block or cylinder head can easily become overlooked if hidden by a layer of
sludge or carbon.
Use a gasket scraper to remove the old gasket material from the mating surfaces
Most of the cleaning process can be carried out with common hand tools and readily available solvents or
solutions. Carbon deposits can be chipped away using a hammer and a hard wooden chisel. Old gasket
material and varnish or sludge can usually be removed using a scraper and/or cleaning solvent. Extremely
stubborn 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 solvent.
CAUTION
Always wear eye protection during any cleaning process involving scraping, chipping or spraying of solvents.
An alternative to the mess and hassle of cleaning the parts yourself is to drop them off at a local garage or
machine shop. They should have the necessary equipment to properly clean all of the parts for a nominal fee.
CLEANING 447