Cvvt Unit - Volvo B5254T3 Manual

CVVT UNIT

The illustration shows the CVVT unit from the side and from behind.
The design of the CVVT unit allows the position of the camshaft to be adjusted relative to the position of
the crankshaft.
The camshaft is fixed in the rotor (3). The rotor (and with it the camshaft) can rotate in relation to the
timing belt pulley (1) within a limited range.
When the unit is in the camshaft 0 position, the timing belt pulley (1) and rotor (3) are secured by the
l ock pin (2) which locks the timing belt pulley (1) to the rotor (3).
The lock mechanism works by pushing the spring-loaded lock pin into a hole milled into the cover.