1.0–1.4mm
45
30
A53031
1.0–1.4mm
75
45
A53032
A36626
A36627
–
ENGINE MECHANICAL
CYLINDER HEAD ASSY (2AZ–FE)
14–109
1633
Author:
Date:
2002 CAMRY REPAIR MANUAL (RM881U)
10.
REPAIR VALVE SEATS
NOTICE:
Take off a cutter gradually to make smooth seats.
(a)
If the seating is too high on the valve face, use 30
and
45
cutters to correct the seat.
(b)
If the seating is too low on the valve face, use 75
and 45
cutters to correct the seat.
(c)
Hand–lap the valve and valve seat with an abrasive com-
pound.
(d)
Check the valve seating position.
11.
INSPECT CAMSHAFT THRUST CLEARANCE
(a)
Install the camshafts.
(b)
Using a dial indicator, measure the thrust clearance while
moving the camshaft back and forth.
Standard thrust clearance:
Intake 0.040 – 0.095 mm (0.0016 – 0.0037 in.)
Exhaust 0.080 – 0.135 mm (0.0032 – 0.0053 in.)
Maximum thrust clearance:
Intake 0.11 mm (0.0043 in.)
Exhaust 0.15 mm (0.0059 in.)
(c)
If the thrust clearance is greater than maximum, replace
the cylinder head. If the thrust surface is damaged, re-
place the camshaft.
12.
INSPECT CAMSHAFT OIL CLEARANCE
(a)
Clean the bearing caps and camshaft journals.
(b)
Place the camshafts on the cylinder head.
(c)
Lay a strip of plastigage across each of the camshaft jour-
nal.
