Inspect Valve Springs; Inspect Camshaft And Bearing Caps - Toyota 7M-GE Repair Manual

ENGINE MECHANICAL -, Cylinder Head
EM-5J
Squareness -+-
(d) Hand-lap the valve and valve seat with an abrasive
compound.
. .
13. INSPECT VALVE SPRINGS
(a) Using a steel square, measure the squareness of the
valve springs.
Maximum. squareness: 1.5 mm (0.059 in.)
If squareness .is greater than maximum, replace the valve
spring.
(b) Using calipers, measure the free length of the valve
spring.
Free length : 41.64 mm (1.6394 in.)
If the free length is not within specification, replace the
valve spring.
(c) Using a spring tester, measure the tension of the
valve spring at the specified installed length.
Installed tension :
\
16.0 kg (35 lb, 157 N) at 35.0 mm (1.378 in.)
If the installed tension is not as specified, replace the valve
spring.
14. INSPECT CAMSHAFT AND BEARING CAPS
(a) Place the camshaft on V-blocks and, using a dial
gauge, measure the circle runout at the center jour-
nal.
Maximum circle runout:
0.03 mm (0.0012 in.)
If the circle runout is greater than maximum, replace the
camshaft.