9. INSPECT VALVE SPRINGS
(a) Using a steel square, measure the deviation of the
valve spring.
Maximum deviation:
1.23 mm (0.0484 in.)
If the deviation is greater than maximum, replace the
valve spring.
(b) Using a vernier caliper, measure the free length of the
valve spring.
Free length:
46.50 mm (1.8307 in.) for white painted mark
47.01 mm (1.8508 in.) for green painted mark
If the free length is not as specified, replace the valve
spring.
(c) Using a spring tester, measure the tension of the valve
spring at the specified installed length.
Installed tension:
242 – 268 N (24.7 – 27.3 kgf, 54.5 – 60.2 lbf)
at 40.0 mm (1.575 in.)
If the installed tension is not as specified, replace the
valve spring.
(d) Hand–lap the valve and valve seat with an abrasive
compound.
(a) After hand–lapping, clean the valve and valve seat.
(2) If the seating is too low on the valve face, use
60 and 45 cutters to correct the seat.
–ENGINE ENGINE MECHANICAL
EG2–69
To Next Page
Loading...
