Cautions for crankshaft repair

Date:Jan 03, 2020

The crankshaft need to be pay attention to the inspection and trimming of the crankshaft from several aspects. Like Can-am 800cc crankshaft, Can-am 1000 crankshaft, CFmoto crankshaft and other crankshaft.


1. Check the surface of the crankshaft. The cooperation surface of the crankshaft with the connecting rod and the large block of the body is very high in accuracy. The surface of the crankshaft must be carefully examined; Roundness and cylindricalness must be measured with a qualified and accurate micrometer. For out-of-roundness and over-cylindricality, the crankshaft must be ground within the specified range, and a larger level of crankshaft and connecting rod bushes must be used. To match the bearing bush.

2. The crankshaft tortuosity check, the received shock wave is more frequent, because the difference between the incineration status of each cylinder also makes the crankshaft simply become small tortuous deformation, so pay attention to check the crankshaft tortuosity when the engine is trimmed.

3. The inspection of the crankshaft, as the engine's important torque-receiving transmission, the fatigue stress that can occur is conceivable. Some scars can not be detected by the naked eye, and you need to rely on a special flaw detector to inspect it.

4. The essentials of the crankshaft of the device. When cleaning the journal, ensure that the journal is cleaned. The bearing pads and bearing pad covers must be marked according to the marking device. The device must also pay attention to the direction of the bearing cover, usually with an arrow.

5. Check the axial gap of the crankshaft. After the crankshaft device is fully inspected, the axial gap of the crankshaft is finally checked. The axial gap is too small, which simply causes damage. Moving over a large image affects the smoothness of the engine and increases the impact on the body. The axial clearance is usually viewed using a magnetic seat dial gauge. The axial clearance of each engine is different, but it is usually controlled at 0.15- 0.30mm.

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