Cub Cadet Challenger 550

2-18
Specifications
ENGINE TIGHTENING TORQUES
Part to be tightened
Part
Name
Thread
Size
Qty
Torque
Nm
Torque
Ft-lbs
Cylinder head
Bolt
6mm
1
10
7.2
Bolt
9mm
6
45
32.8
Spark plug
—
12mm
1
18
13
Cylinder head (exhaust pipe)
Stud bolt
8mm
4
15
11
Cylinder head cover
Bolt
6mm
17
10
7.2
Tappet cover (exhaust)
—
32mm
2
12
8.7
Tappet cover (intake)
Bolt
6mm
4
10
7.2
Oil gallery bolt
—
6mm
1
07
5.1
Camshaft end cap
Bolt
6mm
1
10
7.2
Cylinder
Bolt
6mm
2
10
7.2
Bolt
10mm
4
45
32.8
Balancer driven gear
Nut
18mm
1
110
80
Cam chain tensioner
Bolt
6mm
2
10
7.2
Cam chain tensioner cap
Bolt
6mm
1
07
5.1
Timing chain guide (intake side)
Bolt
6mm
2
08
5.8
Camshaft sprocket
Bolt
7mm
2
20
14
Rocker arm shaft stopper
Bolt
6mm
2
10
7.2
Valve adjusting locknut
—
6mm
5
14
10
Engine oil drain bolt
—
14mm
1
30
22
Oil filter cartridge union bolt
—
20mm
1
63
4.6
Oil filter cartridge
—
20mm
1
17
12
Oil pipe assembly
Bolt
6mm
4
07
5.1
Oil delivery pipe 1
Union Bolt
8mm
2
18
13
Oil delivery pipe 2
Union Bolt
14mm
1
35
25
Oil delivery pipe 3
Union Bolt
10mm
1
20
14
Oil delivery pipe 2 and oil delivery
Union bolt
14mm
1
35
25
pipe 3
Relief valve assembly plate
Bolt
6mm
2
10
7.2
Oil strainer
Bolt
6mm
1
10
7.2
Oil pump assembly
Bolt
6mm
3
10
7.2
Oil cooler inlet pipe 1/oil cooler
Bolt
6mm
2
07
5.1
outlet pipe 1
Oil cooler inlet pipe 1/oil cooler
Bolt
6mm
1
04
5.1
outlet pipe 1 clamp
Oil cooler inlet pipe 2/oil cooler
Bolt
6mm
2
07
5.1
outlet pipe 2 clamp
Intake manifold
Bolt
6mm
4
10
7.2
Intake manifold screw clamp
—
5mm
1
03
2.1