Ford Workshop Service and Repair Manuals

Remove the cylinder head cover. Refer to: Valve Cover (303-01A Engine - 1.4L Duratec-16V (Sigma)/1.6L Duratec-16V (Sigma), Removal and Installation).

CAUTION:Only rotate the crankshaft clockwise. Rotate the crankshaft until the corresponding piston is at TDC and then measure the valve clearance(s). Note down each cylinder number and the valve clearances measured. Compare the measured valve clearance(s) with the specifications. Refer to: Specifications (303-01A Engine - 1.4L Duratec-16V (Sigma)/1.6L Duratec-16V (Sigma), Specifications).

NOTE:The following steps only need to be carried out if you are adjusting the valve clearance. Remove the camshafts. Refer to: Camshafts (303-01A Engine - 1.4L Duratec-16V (Sigma)/1.6L Duratec-16V (Sigma), Removal and Installation).

Remove the valve tappet and read the thickness from the underside. The number on the valve tappet indicates the thickness of the bottom of the tappet. However, the number only indicates the digits after the decimal point (example: 725 = 2.725). Calculate the valve tappet thickness required (thickness of the currently installed tappet + the measured valve clearance - the required valve clearance). Install the correct valve tappet.

Remove the camshafts. Refer to: Camshafts (303-01A Engine - 1.4L Duratec-16V (Sigma)/1.6L Duratec-16V (Sigma), Removal and Installation).

Measure the valve clearances and repeat this procedure as necessary until all valve clearances are within the specified tolerance.