CITROEN C4 2004 Handbook page 169

B1BP2MBC
B1EP170C
CHECKING AND SETTING THE VALVE TIMING
Engine: NFU
Peg the flywheel, using tool [1].
Position the tools [2a] and [2b].
Slacken the tensioner roller.
Turn the dynamic tensioner roller so as to be able
to position the tool [4], with the aid of an Allen key
placed at «a».
Turn the tensioner roller towards the right to bring it
to the index «c» in position «b».
Peg the tensioner roller in this position in order to
slacken the timing belt to the maximum.
IMPERATIVE: Never make the dynamic tensioner
roller turn by a complete rotation.
Remove the timing belt (8).
Check that the rollers and the pump pulley turn
freely (no tight spot).
166 166
B1EP18PC
B1EP18QC