Increased oil consumption

Increase in oil consumption is mainly due to oil into the cylinder combustion, the cylinder junction at the oil spill, crankshaft oil seal failure caused.

Low-speed exhaust pipe to take the blue smoke, it is the oil into the cylinder combustion, mainly the piston and cylinder clearance is too large, or the piston ring caused by the counterparts. If this happens after the repair, it is caused by oil ring chamfering. If the joints of the screw loosening, sealing ring damage will cause leakage.

If the rotating flywheel throws oil droplets, it indicates that the spindle seal has been damaged.

Oil pressure drop or no pressure

Cause oil pump damage, oil blockage or leakage, pressure spring break, pressure gauge failure and so on.

In the course of operation, if the Baotou North North heavy truck accessories pressure gauge pointer is always stopped at a lower pressure position, parking does not change the position, it is pressure gauge failure.

Just start, the oil pump pressure gauge pointer does not move, oil sump no change in the liquid level, and can not hear the fine filter rotor running sound, then the oil pump failure.

Oil pressure is low and unstable, the pressure was gradually downward trend, said the oil circuit leakage. This is because the strength of the gasket in the weak place in the role of pressure under the first small gap, the gap gradually expanded, so that the oil flow short-circuit back to the oil pan.

In the course of operation, with the screwdriver to adjust the oil pressure screw, if the pressure does not change, then the pressure spring break failure.

The oil fine filter is blocked

Oil fine filter rotor in the two nozzles under the reaction of high speed, after stopping under the action of inertia can continue to run for about 1min, otherwise, that the rotor has been blocked.

Piston pin and rod bushing gap is too large

Low-speed operation, the upper part of the cylinder issued a crisp percussion sound, sound increased with the increase in load. At high speed, the sound disappears. Sound has nothing to do with the oil pressure, oil pressure gauge pointer no change. After stopping with a screwdriver toggle the flywheel two teeth, so that the piston for reciprocating motion, if the impact of feeling, then the piston pin and connecting rod gap is too large.

The gap of the connecting rod is too large or broken

Low speed when the load on the lower part of the cylinder in the impact of the sound, the pressure table pointer swing frequency and the same sound frequency, the sound changes with the speed at the same time, the sound is greater than the sound of the machine burst. After stopping with a screwdriver toggle the flywheel two teeth, the sound is clear, there is a sense of impact that Baotou North Ben heavy truck accessories connecting rod bearing gap is too large or broken.

Crankshaft fracture

In the course of the operation, suddenly issued a strong crack crash, oil pressure plummeted, and then automatically flameout. With both hands to grasp the crankshaft front wheel for reciprocating push and pull, if the crankshaft has a larger axial movement, and the flywheel failed to move with the crankshaft, then that Baotou North heavy truck parts crankshaft fracture.