Toyota 3S-GE Repair Manual page 104

EG-90
ENGINE — ENGINE MECHANICAL
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IOIV! 01
CYLINDER HEAD COMPONENTS
INSPECTION AND REPAIR
CLEAN TOP SURFACES OF PISTONS AND
CYLINDER BLOCK
Turn the crankshaft, and bring each piston to top dead
center (TDC). Using a gasket scraper, remove all the
carbon from the piston top surface.
Using a gasket scraper, remove all the gasket material
from the cylinder block surface.
Using compressed air, blow carbon and oil from the
bolt holes.
CAUTION: Protect your eyes when using high—pressure
compressed air.
CLEAN CYLINDER HEAD
Remove gasket material
Using a gasket scraper, remove all the gasket material
from the cylinder block contact surface.
NOTICE: Be careful not to scratch the cylinder block
contact surface.
Clean combustion chambers
Using a wire brush, remove all the carbon from the
combustion chamber.
NOTICE: Be careful not to scratch the cylinder block
contact surface.
Clean valve guide bushings
Using a valve guide bushing brush and solvent, clean
all the guide bushings.