Toyota 4A-FE Repair Manual page 52

EM-68
ENGINE MECHANICAL - Cylinder Head (4A-FE)
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INSPECTION, CLEANING AND REPAIR OF
CYLINDER HEAD COMPONENTS
1. CLEAN TOP SURFACES OF PISTONS AND BLOCK
(a) Turn the crankshaft and bring each piston to the top
dead center (TDC). Using a gasket scraoer, remove all
the carbon from the piston too surface.
(b) Using a gasket scraper, remove all the gasket
material from the top surfaces of the cylinder block.
(c) Using compressed air, blow carbon and oil from the
bolt holes .
CAUTION: Protect your eves whAn using high press-
ure compressed air.
2. CLEAN CYLINDER HEAD
A. Remove gasket material
Using a gasket scraper, remove all the gasket material
from the cylinder head surface.
NOTICE: Be careful not to scratch the cylinder block
contact surface.
B. Clean combustion chambers
Using a wire brush, remove all the carbon from the com-
bustion chambers.
NOTICE: Be careful not to scratch the cylinder block
contact surface.
C. Clean valve guide bushings
Using a valve guide bushing brush and solvent, clean all
the guide bushings.