Table of Contents
Advertisement
Plastigage
1ZZ–FE,3ZZ–FE ENGINE REPAIR MANUAL
(RM923E)
ENGINE MECHANICAL
–
CYLINDER HEAD ASSY (1ZZ–FE/3ZZ–FE)
21.
INSPECT CAMSHAFT THRUST CLEARANCE
(a)
Install the 2 camshafts.
(b)
Using a dial indicator, measure the thrust clearance while
moving the camshaft back and forth.
Standard thrust clearance:
0.040 – 0.095 mm (0.0016 – 0.0037 in.)
Maximum thrust clearance: 0.110 mm (0.0043 in.)
(c)
If the thrust clearance is greater than maximum, replace
the cylinder head. If damages are found on the camshaft
A01455
thrust surfaces, the camshaft also has to be replaced.
22.
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.
A62789
(d)
Install the bearing caps
Torque:
No. 1 23 N m (235 kgf cm, 17 ft lbf)
No. 3 13 N m (132 kgf cm, 10 ft lbf)
NOTICE:
Do not turn the camshaft.
(e)
Remove the bearing caps.
A01454
(f)
Measure the plastigage at its widest point.
Standard oil clearance:
0.035 – 0.072 mm (0.0014 – 0.0028 in.)
Maximum oil clearance: 0.10 mm (0.0039 in.)
NOTICE:
Completely remove the Plastigage after the measuring.
If the oil clearance is greater than maximum, replace the cylin-
der head.
A01453
http://vnx.su
(See page
14–4).
14–33
Advertisement
Table of Contents
