Weichai America Corp.
20
2)
In order, align the cylinder head with the cylinder head and cylinder head bolt and clamping
block with appropriate amount of clean lubricant on the thread and shoulder pressure
surface of the main cylinder head bolt and shoulder nut;
3)
Tighten the main bolts in the specified sequence to the torque of 60
±
6Nm.
4)
Tighten the nuts of auxiliary bolts in the specified sequence to the torque of 25
±
3Nm.
5)
Tighten the nuts of auxiliary bolts in the specified sequence by 120
º±
5
º
. Then make
marks on the nuts.
6)
Tighten the main bolts in the specified sequence by 120
º±
5
º
. Then make marks on the
bolts.
7)
Tighten the nuts of auxiliary bolts in the specified sequence by another 120
º±
5
º
8)
Tighten the main bolts in the specified sequence by another 120
º±
5
º
9)
Tightening sequence of cylinder head bolts is shown in Figure 4-16. Tighten the auxiliary
bolts (studs) numbered M12
×
1.5 for numbers 1 to 14; and tighten the main bolts
numbered 15 to 38.
Figure 3-4 Fan side flywheel side
7.
Assemble the ignition coil bushing
O-ring coated Ke Bang 680 plastic, and placed in the cylinder head gasket groove, into the
ignition coil bushing, and ignition coil bushing pressure plate to suppress ignition coil bushing,
tighten the mounting screws.
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
