Ford Transit 2002 Owner's Manual page 515

Installation
NOTE: Cover the collet grooves with
1.
adhesive tape during installation of the valve
stem seals.
Using the special tool, install the valve stem
seals.
Coat the valve stem seals with clean
engine oil.
2. Using the special tools, install the valve springs.
3. Install the camshaft.
For additional information, refer to:
(303-01B Engine - 1.8L Duratorq-TDCi (Lynx)
Diesel/1.8L Duratorq-TDDi (Lynx) Diesel, In-
vehicle Repair).
http://vnx.su
Camshafts