505806 - 1016E14 Valve guides for single cylinder head - Replace during Op. 1016E10

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

	Description	Code	Function
1b	Extractor	1.860.395.000	Valve guide extraction

Refitting ( Removing ) - Check that the outer diameter of the valve guides to be fitted corresponds to the recommended figures.

	Subject	Value
.	Cylinder head valve guides (all)	mm
-	Outer diameter	13.010 - 13.030

1. Fit the valve guides (1a) using the tool (1b).

	Description	Code	Function
1b	Fitting tool	1.860.812.000	Valve guide fitting

BEfore fitting the new valve guides, heat the cylinder head in the oven to a temperature of 80 - 100 °C.

- If there are slight distortions due to the fitting, ream the valve guide inner diameter to the recommended value.

	Subject	Value
.	Cylinder head valve guides (all)	mm
-	Inner diameter	7.022 - 7.040

If the valve guides are being replaced, the valve seats must be reground.