Weichai America Corp.
46
2.
Ensure that the oil channels of valve tappet and pushrod are smooth.
3.
Ensure that the pushrod is not crooked. Check wear condition on the outside surface.
4.
Ensure that the two ends of the pushrod are not worn.
5.
Ensure that the valve tappet surface and undersurface are not worn.
6.
Ensure that the valve tappet inner socket head is not worn.
4.5
Assembly and disassembly of valve
4.5.1 Exploded view of valve
Fig. 4-7 Exploded view of valve
4.5.2 Steps to disassemble valve
1.
Depress valve springs with vale spring compressor or valve overhead plier or other tools, take
out valve lock clamp, upper valve spring seat and lower valve spring seat and valve springs
orderly;
2.
Take valve out of valve seat.
4.5.3 Steps to assemble valve
1.
A valve with severe wear or carbon deposit or sintering should be replaced.
Apply molybdenum disulfide cream on intake and exhaust valve rod, and then install intake
