How to Adjust the Valve of 490 Engine

The following is about "how to adjust the valve of 490 engine?" Related introduction:

490 engine valve adjustment method:

1. The method of adjusting the valve clearance twice is to rotate the crankshaft twice to complete the adjustment of all valve clearances. For example, for a 4-cylinder machine with the working sequence of 1, 3, 4 and 2, open the cylinder head, rotate the crankshaft and observe the valve movement of 4 cylinders. When the intake valve and exhaust valve overlap, this is the exhaust top dead center of cylinder 4. At this time, 1 cylinder is at compression top dead center.

2. Then turn the crankshaft 360 degrees, find the compression top dead center of cylinder 4 according to this method, and adjust other valves.

This is the simplest and most practical method. Generally, a multi-cylinder machine can adjust all valves twice. Million car purchase subsidy