2585286 - 1016E14 single cylinder head valve guides - replace during operation 1016e10

Removing ( Refitting ) 1. Remove the valve guides (1a) using the tool (1b).

	Description	Code
1b	Drift	1.860.395.000

Refitting ( Removing ) Measure the valve guide bore and check that it is within the recommended values.

	Measurement		Value
-	Valve guide bore diameter in cylinder head (mm)		12.950 - 12.977

If necessary, ream the valve seat.Check the measurement of the new valve guide.Make a note of the measurement of the valve seat after reaming.Valve guides are available as spares with the following diameters and oversizes.

	Measurement		Value
-	Inlet and exhaust valve guide outer diameter (mm)		13.010 - 13.030

	Measurement		Value
-	First valve guide outer diameter oversize (mm)		- 0.05

	Measurement		Value
-	Second valve guide outer diameter oversize (mm)		- 0.10

	Measurement		Value
-	Third valve guide outer diameter oversize (mm)		- 0.25

The interference between the valve guides and the seats in the cylinder head is as follows.

	Measurement		Value
-	Valve guides - valve guide seats interference (mm)		0.033 ÷ 0.080

Before fitting the new valve guides the cylinder head must be heated to a temperature of around 100° -120 °.1. Fit the new valve guides (1a) using the tool (1b).

	Description	Code
1b	Fitting tool	1.860.750.000

If the valve guides have become slightly distorted during fitting, ream the inner surface using a suitable sized diameter reamer.Measure the valve guide inner diameter after refacing and the clearance with the valve; check that it is within the recommended values.

	Measurement		Value
-	Valve guide inner diameter (mm)		7.022 ÷ 7.040

	Measurement		Value
-	Inlet and exhaust valve clearance - valve guides (mm)		0.022 - 0.058