125000855 - 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 seat for the spark plug for cylinder no. 1.

	Description	Code
1a	Extension	1.860.895.001

Working on the timing drive pulley fixing bolt, rotate the crankshaft in a clockwise direction until the piston for cylinder no.1 is at T.D.C. in the explosion stroke.

If TDC is exceeded, do not turn backwards but proceed with the rotation in the same direction rotating the crankshaft through another two revolutions and return the piston for cylinder no. 1 to TDC.

Undo the bolts and remove the inlet side camshaft fourth cap and the exhaust side camshaft second cap.1. Fit the tool (1a) in place of the camshaft caps that have been removed and secure them tightening the bolts (1b) to the recommended torque.

Check that the camshaft cam profile and the tool are correctly aligned.

	Description	Code
1a	Templates	1.870.859.000

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

Remove the camshaft timing tools.

	Description	Code
-	Templates	1.870.859.000

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

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

Remove the tool for checking T.D.C. from the housing for the spark plug for cylinder no.1.

	Description	Code
-	Extension	1.860.895.001

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

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