Exmark 127-9041 - Page 8

Maintenance
Crankcase cover
Camshaft hole diameter
0.629-0.630” (16-16.018 mm)
0.633” (16.068 mm)
Crankshaft hole diameter
1.575-1.576” (40.009-40.025 mm)
1.578” 40.075 mm)
Spark plug
Gap
0.0027-0.0031” (0.7-0.8 mm)
－
Ignition coils
Resistance (primary)
(1.6-1.9Ω)
－
Resistance (secondary)
(6.27.1kΩ)
－
Gap to flywheel
0.015-0.016” (0.4±0.1 mm)
－
GENERAL TORQUE VALUES
English Fastener Torque Recommendations for Standard Applications
Bolts, Screws, Nuts and Fasteners Assembled Into Cast Iron or Steel
Size Grade 2 Grade 5 Grade 8
Grade 2 or 5 Fasteners
Into Aluminum
Tightening Torque: N·m (in. lb.) ± 20%
8-32 2.3 (20) 2.8 (25) —
2.3 (20)
10-24 3.6 (32) 4.5 (40) —
3.6 (32)
10-32 3.6 (32) 4.5 (40) —
—
1/4-20 7.9 (70) 13.0 (115) 18.7 (165)
7.9 (70)
1/4-28 9.6 (85) 15.8 (140) 22.6 (200)
—
5/16-18 17.0 (150) 28.3 (250) 39.6 (350)
17.0 (150)
5/16-24 18.7 (165) 30.5 (270) —
—
3/8-16 29.4 (260) — —
—
3/8-24 33.9 (300) — —
—
Tightening Torque: N·m (ft. lb.) ± 20%
5/16-24 — — 40.7 (30)
—
3/8-16 — 47.5 (35) 67.8 (50)
—
3/8-24 — 54.2 (40) 81.4 (60)
—
7/16-14 47.5 (35) 74.6 (55) 108.5 (80)
—
7/16-20 61.0 (45) 101.7 (75) 142.5 (105)
—
1/2-13 67.8 (50) 108.5 (80) 155.9 (115)
—
1/2-20 94.9 (70) 142.4 (105) 223.7 (165)
—
9/16-12 101.7 (75) 169.5 (125) 237.3 (175)
—
9/16-18 135.6 (100) 223.7 (165) 311.9 (230)
—
5/8-11 149.5 (110) 244.1 (180) 352.6 (260)
—
5/8-18 189.8 (140) 311.9 (230) 447.5 (330)
—
3/4-10 199.3 (147) 332.2 (245) 474.6 (350)
—
3/4-16 271.2 (200) 440.7 (325) 637.3 (470)
—
Metric Fastener Torque Recommendations for Standard Applications
Property Class
Size
4.8 5.8
8.8 10.9 12.9
Noncritical
Fasteners
Into Aluminum
Tightening Torque: N·m (in. lb.) ± 10%
M4 1.2 (11) 1.7 (15) 2.9 (26) 4.1 (36) 5.0 (44)
2.0 (18)
M5 2.5 (22) 3.2 (28) 5.8 (51) 8.1 (72) 9.7 (86)
4.0 (35)
M6 4.3 (38) 5.7 (50) 9.9 (88) 14.0 (124) 16.5 (146)
6.8 (60)
M8 10.5 (93) 13.6 (120) 24.4 (216) 33.9 (300) 40.7 (360)
17.0 (150)