3237425 - 0510A20 timing gear with belt drive - check - carry out operation with cam cover(s) removed and tappets adjusted

Remove the spark plug for cylinder no. 1.1. Fit the tool (1a), complete with dial gauge (1b), in the housing of the spark plug for cylinder no. 1.

	Name	Country
1a	Extension	1.860.895.001

Adjust the bolt securing the timing drive sprocket and turn the crankshaft clockwise, timing gear side, until the piston of cylinder no.1 is at T.D.C. in the explosion stroke.

If TDC is exceeded, do not turn backwards, but proceed by rotating the crankshaft through a further two revolutions in the same direction until the piston for cylinder no. 1 is at TDC.

Undo the bolts and remove the 4th cap on the inlet side camshaft and the 2nd cap on the exhaust side camshaft.1. Fit the tool (1a) in place of the camshaft caps removed and fix it tightening the bolts (1b) to the recommended torque.

Check that the camshaft cam profile matches the tool correctly.

	Name	Country
1a	Gauge	1.870.859.000

	Fastening	Component	Ø	Value(daNm)
1b	Bolt	ENGINE TIMING ADJUSTMENT TEMPLATES	M7	(Cylinder head side) 1.0

Remove the tool for timing the camshafts.

	Name	Country
-	Gauge	1.870.859.000

Place the previously removed camshaft caps back in their housings and secure them tightening the bolts to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
-	Bolt	CAMSHAFT SUPPORTS	M7	(Cylinder head side) 1.4 ÷ 1.7

Remove the tool to check T.D.C. from the cylinder 1 spark plug socket.

	Name	Country
-	Extension	1.860.895.001

Place the spark plug for cylinder no. 1 back in its housing and tighten them to the recommended torque.

	Fastening	Component	Ø	Value(daNm)
-	-	SPARK PLUGS	M14	(Cylinder head side) 2.4 ÷ 3.0