Volvo Penta TD520GE Workshop Manual page 28

Disassembly, complete engine
38
9. Remove the coolant pump and coolant housing,
according to one of the pictures, depending on
coolant pump model.
The lower model is removed with 7 screws. First
remove the bearing bracket for the intermediate
pulley.
10. Loosen the screws and remove the rocker cover
and the gasket.
NOTE! Make sure that dirt trapped between the inlet
manifold and the rocker cover does not fall down into
the engine. Clean thoroughly before removing the
rocker cover.
11. Remove the fuel return lines together with the
overflow valve and air vent screw.
Group 21