Inspection, Cleaning And Repair Of Cylinder Head Components - Toyota 3b Repair Manual

EM-36
ENGINE MECHANICAL
-
Cylinder
Head
INSPECTION. CLEANING
AND
REPAIR
OF
CYLINDER HEAD COMPONENTS
1.
CLEAN TOP OF PISTONS AND TOP OF BLOCK
(a)
Turn the crankshaft and bring each piston to top
dead
center. Using a gasket scraper, remove all the
carbon
from the piston
top.
(b)
Remove
all the
gasket material from the top of the
block.
(c)
Blow carbon and oil from the bolt
holes.
NOTICE:
Protect your eyes when using high
pressure
air.
2.
REMOVE GASKET MATERIAL
Using
a
gasket scraper, remove
all the
gasket
material
from the manifold and
head
surface.
NOTICE:
Be
careful not to scratch the
surfaces.
3.
CLEAN COMBUSTION CHAMBERS
Using
a
wire
brush,
remove
all the
carbon
from
the
combustion chambers.
NOTICE:
Be careful
not
to
scratch
the
head gasket
contact surface.
4.
CLEAN VALVE GUIDE BUSHINGS
Using
a
valve guide busing brush and solvent, clean allthe
guide bushings.
5.
CLEAN CYLINDER HEAD
Using a
soft brush and solvent, thoroughly clean the
head.
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