The engine is the key to the car. The failure of the engine cannot be underestimated. The editor will sort out how to deal with abnormal noise on the engine camshaft.
Causes of abnormal noise of the camshaft
1) The camshaft and its The matching clearance between the bushes is large.
2) The camshaft bushing rotates.
3) The camshaft is bent and deformed.
4) The axial clearance of the camshaft is too large.
5) The camshaft bushing alloy burns or falls off.
Abnormal noise performance characteristics of camshaft
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Abnormal wear of camshaft It will cause the gap between the camshaft and the bearing seat to increase, and axial displacement will occur when the camshaft moves, resulting in abnormal noise. Abnormal wear will also cause the gap between the drive
Engine Camshaft For Mercedes Benz and the hydraulic tappet to increase. When the Engine Camshaft For Mercedes Benz is combined with the hydraulic tappet, an impact will occur, which will cause abnormal noise.
1) When the engine is running at medium speed, the sound is obvious, and there is a dull “click, click” sound, which can be heard even when running at idle speed, but it seems to disappear when running at high speed.
2) There is no change in the sound during the single-cylinder misfire test.
3) There is vibration near the camshaft bearing bush when it sounds.
The method of judging the abnormal noise of the camshaft
The sound is clear at idling speed, and the sound is obvious at medium speed At high speed, the sound changes from clutter to weakened to disappear, which can be determined as camshaft noise.
1) Make the engine run with the strongest noise, use a screwdriver to touch the vicinity of each bearing at the cylinder block for auscultation, if there is a dull sound with vibration, it is a Engine Camshaft For Mercedes Benz
The bearing in this section of the shaft is loud.
2) There is no change in the sound of the misfire test, and the throttle is slowly changed. If the idling sound is clear, the sound is obvious at medium speed, and the sound at high speed changes from clutter to weak, it means that the axial clearance of the camshaft is too high. Large or loose bearings.
The above are some manifestations of the abnormal noise of some engine camshafts. We need to pay attention to this aspect and pay attention to it.
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