Commencement Of Delivery, Fb - Volvo Penta TD520GE Workshop Manual

General information
18

Commencement of delivery, Fb

The engine is equipped with a separate injection pump
for each cylinder. This means that the
commencement of delivery, Fb, when necessary, has
to be adjusted separate for each pump unit. The com-
mencement of delivery, Fb, is adjusted with a shim,
placed between lifter and injection pump.
To exchange only the injection pump, the formula
T =(L +A/100) is used, according to "Calculation 1" in
s 0
"Technical data"
If engine block, camshaft or roller tappet are
exchanged, the corrected fitting size, E
code must also be calculated, according to
"Calculation 2 and 3" in "Technical data".
New EP-code must also be is indicated on the
identification plate, in order for calculations during
future replacement of injection pump to be correct.
Delivery pipes
IMPORTANT! The delivery pipes must be
disposed of after disassembling.
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.
If the delivery pipes for some reason have been
damaged, for example during transport, they
may not be bent right, but must be replaced.
Group 20
, and new EP-
k