Toyota 2002 Camry - Repair Valve Seats; Inspect Camshaft Thrust Clearance; Inspect Camshaft Oil Clearance

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
1633Author: 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.