Checking the valves of the K4M engine (Renault Fluence 1)

The diameter D of the valve stem is measured at a distance X1.

• Inlet valves X1: = 75.14 ±0.35 mm, D = 5, 470 - 5,485 mm.
• Exhaust valves X1: = 77.5 ±0.35 mm, D = 5, 456 - 5.471 mm.

Valve head diameter D:

• inlet valves - 32.7 ±0.12 mm;
• exhaust valves - 27.96±0.12 mm.

Valve length L:

• intake valves - 109.32 mm;
• exhaust valves - 107.64 mm.

Working chamfer angle A:

• inlet and outlet valves— 45° 45' — 45°.

Head thickness T:

• inlet valves - 1.15 mm;
• exhaust valves - 1.27 mm.

Valve stroke:

• intake valves - 9.221 mm;
• exhaust valves - 8.075 mm.