How to Adjust the Valve Clearance of Renault Engine

1. First, 4 102 loosen the screw that fixes the rocker arm of Renault engine. As shown in the figure

2. Loosen the nut at the top of the valve of Renault engine, just loosen it, without unscrewing it. As shown in the figure

3. Loosen the screw for adjusting the valve clearance of Renault engine with a flat screwdriver. As shown in the figure

4. Pull up the driving screw of valve nut of Renault engine, so that the valve clearance of Renault engine is between 10 mm and 15 mm ... as shown in the figure.

5. Tighten the valve screw of Renault engine to complete the operation. As shown in the figure

Extended data:

Harm of too large or too small valve clearance

The valve clearance is determined by the engine manufacturer according to the test. Generally, in the cold state, the intake valve clearance is 0.25mm~0.35mm, and the exhaust valve clearance is 0.30mm~0.35mm.

1, too small: the valve clearance is too small, and the engine may leak air when the valve is not tightly closed in hot state, resulting in power reduction and even burning the valve.

2. Too large: too large valve clearance will cause impact noise between transmission parts and between valve and valve seat, which will accelerate wear. At the same time, it will also reduce the duration of valve opening, and the inflation and exhaust of the cylinder will become worse.