1.8 liter engine timing system

The main element of the gas distribution system is the camshaft located in the cylinder head and driven by a toothed belt from the crankshaft.

Valve timing (measured at valve clearance):

• OZD: 6°before TDC;
• ZZD: 32°after BDC;
• OZW: 57°before BDC;
• ZZW: 7°after TDC.

OZD and ZZD - opening and closing of the intake valve, respectively; OZW and ZZW - opening and closing of the exhaust valve, respectively.

Camshaft

The camshaft is supported by five bearings containing thin-walled bushings.

Valve lift:

• intake: 10 mm;
• graduation: 9 mm.

Axial play: 0.1–0.2 mm.

Bearing journal diameter: 27.960–27.980 mm.

Camshaft bearing clearance: 0.020–0.079 mm.

Toothed belt

The toothed belt drives the camshaft, countershaft and coolant pump.

Brand: Motorcraft.

Tension: Adjusted automatically by roller tensioner.

Replacement interval: every 60,000 km.