Exmark 127-9041 - Engine Specifications

Maintenance
34
Cylinder Head
Stud Bolt M8×39
11 Ft. Lbs.
14 N.m
Nut M8
13 Ft. Lbs.
17 N.m
35
Oil Filter
/
9 Ft. Lbs.
12 N.m
1.2 Engine Specifications
Part
Item
Standard
Service Limit
P/N 127-9041
P/N 127-9041
Engine
Ile speed
1800 RPM’s
+ or – 100 RPM’s
Operating RPM
3600 RPM’s
+ or – 50 RPM’s
Cylinder head
Warpage
0.0020” (0.05 mm)
Cylinder
Sleeve Taper / Out of Round
3.0315”-3.0319” (77 – 77.01 mm)
3.0354” (77.1 mm)
(Inside Diameter)
Piston
Skirt outside diameter
3.0301-3.0305” (76.965-76.975 mm)
3.0219” (76.755 mm)
Clearance to cylinder
0.00098-0.0017” (0.025-0.045 mm)
0.01000” (.255 mm)
Piston pin bore inside diameter
0.66937- 0.66961” (17.002-17.008 mm)
0.67402” (17.12 mm)
Piston – pin clearance
0..00016-0.00063” (0.004-0.016 mm)
0.0014” (0.029 mm)
Piston pin
Outside diameter
0.6689-0.6692” (16.992-16.998 mm)
0.6654” (16.9 mm)
Piston ring
Ring to Groove (Top and Middle
0.0008-0.0024” (0.02-0.06 mm)
0.0043” (0.11 mm)
End gap (top and middle )
0.0079-0.01578” (0.20-0.40 mm)
0.0177” (0.45 mm)
Width (top)
0.0382-0.0390” (0.97-0.99 mm)
0.0354” (0.9 mm)
Width (second)
0.0460-0.0469” (1.17-1.19 mm)
0.0433” (1.1 mm)
Width (oil ring)
0.0650-0.0728” (1.65-1.85 mm)
0.0630” (1.6 mm)
Connecting rod
Small end inside diameter
0.6695-0.670” (17.006-17.017 mm)
0.6712” (17.05 mm)
Big end inside diameter
1.575-1.576” (40.015-40.025 mm)
1.577” (40.065 mm)
Big end side clearance
0.0010-0.0031” (0.024-0.079 mm)
0.0051” (0.129 mm)
Crankshaft
Connecting Rod Journal Diameter
1.5735-1.5744” (39.966-39.991 mm)
1.555” (39.5 mm)
Valve
Clearance(cold) (intake)
0.004-0.006” (0.10-0.15 mm)
－
Clearance(cold) (exhaust)
0.006-0.008” (0.15-0.20 mm)
－
Stem diameter (intake)
0.258-0.259” (6.565-6.58 mm)
0.256” (6.515 mm)
Stem diameter (exhaust)
0.257-0.258” (6.545-6.56 mm)
0.258” (6.495 mm)
Valve guide
Inside diameter (intake, exhaust)
0.259-0.260” (6.6-6.615 mm)
0.262” (6.665 mm)
Stem to guide clearance (intake)
0.0008-0.0020” (0.02-0.05 mm)
0.006” (0.15 mm)
Stem to guide clearance exhaust)
0.0016-0.0027” (0.04-0.07 mm)
0.007” (0.17 mm)
Valve seat
Seat width
0.0027-0.0031” (0.7-0.8 mm)
0.051” (1.3 mm)
Valve spring
Free length
1.55-1.60” (39.5-40.5 mm)
1.535” (39 mm)
Cam shaft
Height (intake)
1.15-1.18” (29.95-30.05 mm)
1.17” (29.75 mm)
Height (exhaust)
1.15-1.18” (29.95-30.05 mm)
1.17” (29.75 mm)
Outside diameter (bearing)
0.628-0.629” (15.966-15.984 mm)
0.626” (15.916 mm)