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	Function
1b	Extractor/fitting tool	1.871.008.500	Extracting/fitting valve guides

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

	Subject	Value
-	Valve guide diameter (mm)	9.959 ÷ 9.981

- 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.- The valve guides are supplied by the parts dept with the following diameter.

	Subject	Value
-	Valve guide outer diameter (mm)	10.010 ÷ 10.030

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

	Subject	Value
-	Interference between valve guides and valve guide seats (mm)	0.029 ÷ 0.071

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

	Description	Code	Function
1b	Extractor/fitting tool	1.871.008.500	Extracting/fitting valve guides

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

	Subject	Value
-	Valve guide inner diameter (mm)	5.022 ÷ 5.040

	Subject	Value
-	Inlet valve/valve guide clearance (mm)	0.022 ÷ 0.058

	Subject	Value
-	Exhaust valve/valve guide clearance (mm)	0.030 ÷ 0.066