CYLINDER HEAD (4A–FE) - CelicaTech
CYLINDER HEAD (4A–FE) - CelicaTech
CYLINDER HEAD (4A–FE) - CelicaTech
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EM–92ENGINE MECHANICAL–Cylinder Head (<strong>4A–FE</strong>)INSPECTION, CLEANING AND REPAIROF <strong>CYLINDER</strong> <strong>HEAD</strong> COMPONENTS1. CLEAN TOP SURFACES OF PISTONS AND <strong>CYLINDER</strong>BLOCK(a) Turn the crankshaft and bring each piston to topdead center (TDC). Using a gasket scraper, removeall the carbon from the piston top surfaces.(b) Using a gasket scraper, remove all the gasket materialfrom the surface contacting the cylinder head.(c) Using compressed air, blow carbon and oil from thebolt holes.CAUTION: Protect your eyes when using high–pressurecompressed air.2. CLEAN <strong>CYLINDER</strong> <strong>HEAD</strong>A. Remove gasket materialUsing a gasket scraper, remove all the gasket materialfrom the surface contacting the cylinder block.NOTICE: Be careful not to scratch the cylinder blockcontact surface.B. Clean combustion chambersUsing a wire brush, remove all the carbon from thecombustion chambers.NOTICE: Be careful not to scratch the cylinder blockcontact surface.C. Clean valve guide bushingsUsing a valve guide bushing brush and solvent, clean allthe guide bushings.
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