Volvo Penta TD520GE Workshop Manual page 62

Assembly, complete engine
72
96. Fit a new delivery pipe and rubber seal. Use tool
885490. Tighten the nuts by hand.
NOTE! When you install the delivery pipes, the
sealing cones must fit exactly in the pump and injec-
tor.
WARNING! Do not bend the pressure pipes.
The pressure pipes can be used only once.
NOTE! The delivery pipes are deformed when
tightened and all delivery pipes must be tightened
with the same tightening torque.
If they are tightened with different tightening torque,
the cylinders may take different load.
Reuse of delivery pipes may mean that the engine
power is not complete.
97. Tighten the screws for the injector yokes
to ................................. 19 ±2 Nm (14 ±1.5 lbf ft).
98. Pre-tension the delivery pipe nuts in two stages:
1. Tighten to ............................... 5 Nm (3.7 lbf ft)
2. Tighten to ............ 25 ±3.5 Nm (22 ±2.6 lbf ft)
99. Fit the fuel leakage line and push it through the
rubber seal.
NOTE! Always replace the leakage line.
100. Fit the overflow valve with new copper gaskets.
Tighten to ............................. 30 Nm (22.2lbf ft).
Rocker cover
101. Fit the rocker cover with a new gasket.
NOTE! Make sure that the gasket is placed correctly
in the grooves of the rocker cover.
102. Fit the rocker cover.
Tighten the screws to ........................ 11 ±1 Nm
(8 ±0.7 lbf ft).
Group 21