Toyota T100 1996 Service Manual page 762

1996 TOYOTA T100 (RM449U)
ENGINE MECHANICAL (3RZ−FE)
5.
Using a soft brush and solvent, thoroughly clean the cylinder
head.
P14663
6.
Using a precision straight edge and thickness gauge, measure
the surfaces contacting the cylinder block and the manifolds for
warpage.
If warpage is greater than maximum, replace the cylinder head.
Z10933
7.
Using a dye penetrant, check the combustion chambers, intake
ports, exhaust ports and cylinder block surface for cracks.
If cracked, replace the cylinder head.
P14696
8.
(a)
(b)
EM0580
− CYLINDER HEAD
CLEAN CYLINDER HEAD
INSPECT FOR FLATNESS
Maximum warpage:
Cylinder block side
0.05 mm (0.0020 in.)
Manifold side
0.10 mm (0.0039 in.)
INSPECT FOR CRACKS
CLEAN VALVES
Using a gasket scraper, chip off any carbon from the valve
head.
Using a wire brush, thoroughly clean the valve.
EM−39