During the operation of the diesel engine,
the cylinder block and the cylinder head are prone to crack, resulting in
leakage, leakage, burn the cylinder head
gasket, and even mechanical accidents. Cylinder block and cylinder
head cracks should be promptly repaired, the main methods are the following
four.
1. Fill plate method
Fill plate method is mainly used to repair
the cracks more and relatively concentrated or part of the hole body surface of
the body. The concrete steps are: ① remove the crack near the preparation of the fill plate parts of
the oil, paint and other objects; ② with a diameter of 3 ~ 5 mm 30 mm 20 mm 5 mm
2. Planting method
Silk method is often used to repair a
single crack, as shown in the figure, the method: ① with a diameter of 3 ~ 5 mm 4 mm 2 mm
3. Welding method
Welding method is: first with a 4mm diameter drill bit at both ends of
the crack drill hole, while the crack along the open v-groove groove, the depth
of the groove to not exceed the body wall thickness of 2/3 is appropriate; and
then diameter 4 mm
In order to prevent the welding parts after
welding caused by internal stress or warping phenomenon, should be in the weld
when the red hot, with a hammer hammer hammer beats to eliminate the slag. If
the crack is too long, must be separated from the welding, generally 20 ~ 30 mm 70 mm
4. Adhesive method
To repair the cylinder crack as an example,
the steps are: ① 1 # coarse
sandpaper to remove the cracks around the cylinder block of silver and rust,
polished width of about 30 mm 30 mm 3 mm 2 mm
After 24 h of this treatment, the diesel
engine can be put into use. If in winter, in order to speed up the curing speed
of viscose, water radiator should be injected into the hot water, so that the
body to maintain a high temperature.
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