Volkswagen Fox 2004 Workshop Manual page 114

Fox 2004 ➤
3 - Cyl. diesel engine - Edition 02.2009
♦ Assembly sleeve -T10056-
1.6.1 Removal
– Remove carefully old rings from injector.
– Ensure that no burrs are formed on the ring seat in the oper‐
ation above.
1.6.2 Installation
Note
Always use the assembly sleeves to fit the rings. If the as‐
♦
sembly sleeves are not used, the rings may be damaged.
Gradually introduce the rings with no coloured markings. Then
♦
check that the rings are correctly positioned in their respective
grooves. Ring size decreases towards nozzle.
Prevent the rings from rolling when sliding them on. The rings
♦
must not be twisted when seated on the injector.
– Pull the heat insulation cover with the fastening clip.
– Carefully clean the seating surfaces of the injector ring.
– Slide Assembly sleeve -T10056/1- to stop position on unit in‐
jector.
– Slide upper ring carefully towards assembly sleeve and into
injector seat.
– Remove assembly sleeve.
110
Rep. Gr.23 - Supply system - mechanical injection (diesel)