WEICHAI WD10 Service Manual - page 58
Service Manual for WD10 Diesel Engine
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2) Check and make sure cylinder cover air passage and water passage are free of foreign
matter; Check and make sure the cylinder is free of foreign matter, cylinder cover gasket
and cylinder cover undersurface are clean;
3) Apply pin-plane mode to locate the cylinder cover before fastening cylinder cover bolts;
4) Assemble cylinder cover.
(5) Install clamp blocks
1) Clean up the clamp blocks;
2) Apply clean lubricating oil on clamp block bearing surfaces, and then install them on
cylinder cover orderly, avoid applying too much lubricating oil to prevent oil leaking into
cylinder cover gap.
3) Clamp block groove direction should be the same as cylinder cover gap direction;
4) Screw on cylinder cover auxiliary nuts with hand.
(6) Install cylinder cover main bolts
Fig. 4-14 Cylinder cover main bolt (Left)
Cylinder cover main bolt for hanger plate (Right)
1) Cylinder cover main bolts are allowed to use three times, replace them after 2 times reuse;
2) Centre the cylinder covers orderly, apply proper amount of clean engine oil on thread and
bearing surface of cylinder cover main bolts and nuts, and then install the bolts and nuts on
cylinder cover and clamp blocks respectively. Notice that there are two kinds of clamp
blocks: one is installed between two adjacent cylinder covers, the other is installed on two
sides, as shown in Fig. 4-15.
3) Pre-tighten cylinder cover main bolts and auxiliary nuts with torque wrench to 30~50Nm;
4) Knock each clamp block so that they can be in position;
5) Pre-tighten cylinder cover auxiliary nuts to 100Nm with torque wrench orderly and mark
the nuts;