7-6
SPEC
MAINTENANCE SPECIFICATIONS
Valve:
mm (in)
Valve
Head diameter “A”
IN
32.0 (1.26)
EX
28.0 (1.10)
Stem diameter “B”
IN
5.948–5.963 (0.2342–0.2348)
EX
5.940–5.955 (0.2339–0.2344)
<Limit>
IN
5.918 (0.2330)
EX
5.910 (0.2327)
Stem length “C”
IN
88.1 (3.47)
EX
88.1 (3.47)
Valve face contact width “D”
IN
0.9–1.1 (0.0354–0.0433)
EX
0.9–1.1 (0.0354–0.0433)
<Limit>
IN
1.6 (0.063)
EX
1.6 (0.063)
Valve seat contact width IN
0.9–1.1 (0.0354–0.0433)
EX
0.9–1.1 (0.0354–0.0433)
<Limit>
IN
1.6 (0.063)
EX
1.6 (0.063)
Valve stem runout limit
0.01 (0.0004)
“
θ
”
90°
Valve guide
Guide inside diameter
IN
6.000–6.012 (0.2362–0.2367)
EX
6.000–6.012 (0.2362–0.2367)
Stem to guide clearance
IN
0.037–0.064 (0.00146–0.00252)
EX
0.045–0.072 (0.00177–0.00283)
Valve clearance (cold)
IN
0.05–0.09 (0.0020–0.0035)
EX
0.05–0.09 (0.0020–0.0035)
Push rod:
mm (in)
Runout limit
0.5 (0.02)
Valve spring:
mm (in)
Free length
IN
36.2 (1.4252)
EX
36.2 (1.4252)
<Limit>
IN
34.39 (1.35)
EX
34.39 (1.35)
Set length
IN
29.0 (1.14)
EX
29.0 (1.14)
Set force
IN
N (kgf, lbf)
91.20–104.92 (9.30–10.70, 20.50–23.59)
EX N (kgf, lbf)
91.20–104.92 (9.30–10.70, 20.50–23.59)
Tilt limit
mm (in)
1.2 (0.047)
