(c) Using a spring tester, check the tension of each spring
at the specified installed height.
Installed height: 40.5 mm (1.594 in.)
Standard installed tension: 294 N (30.0 kgf, 66.1 lbf)
Minimum installed tension: 279 N (28.5 kgf, 62.8 lbf)
If the installed tension is less than minimum, replace
the spring.
13. INSPECT VALVE SPRINGS
(a) Using a steel square, measure the squareness of the
valve spring.
Maximum squareness: 1.6 mm. (0.063 in.)
If squareness is greater than maximum, replace the
valve spring.
(b) Using vernier calipers, measure the free length of the
valve spring.
Free length: 48.5 mm (1.909 in.)
If the free length is not within specification, replace
the valve spring.
• If seating is too low on the valve face, use 60
(IN) or 65 (EX) and 45 cutters to correct the
seat.
(d) Hand–lap the valve and valve seat with abrasive
compound.
–ENGINE ENGINE MECHANICAL
EG1–27
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