Weichai America Corp.
36
Fig. 3-7 Exploded view of piston-rod assembly
3.5.2 Steps to disassemble piston-rod assembly
1.
Check before disassembling. Check connecting rod axial backlash, check tightening torque of
connecting rod bolts;
2.
Tilt and lay the engine on its side, rotate the flywheel until the to-be removed piston is in
BDC, and then remove connecting rod bolts and cap;
3.
Rotate the flywheel until the to-be removed piston is in TDC, knock the piston out with
wooden hammer, proceed with caution to avoid jamming cylinder block with connecting rod
tip.
4.
Remover other pistons in the same way, number and place them orderly.
5.
Remove circlip on two sides of piston with internal circlip plier and push piston pin out, take
down the connecting rod body. Number the piston pins, connecting rod bodies and place them
orderly.
6.
Remove first compression ring, second compression ring and oil ring with piston ring plier
and mark them.
3.5.3 Steps to assemble piston-rod assembly
