Setting Injection Timing - Volvo Penta D2-55 Workshop Manual

Installing the injection pump
Check that the pump is free from faults and if neces-
sary has been tested and approved before installation.
Do not remove the protective plugs before the pipes
are to be connected.
1. Insert the injection pump into the cylinder block.
NOTE! Make sure that any shims that were placed
under the injection pump flange are in replaced as
they were, before the pump is installed on the block.
This normally ensures that the pump settings are cor-
rect. If the camshaft complete or the cylinder block
have been replaced then the injection pump settings
need adjusting. Refer to the next paragraph, "Setting
injection timing".
2. Turn the stop arm clockwise and connect the reg-
ulator arm to the regulator rod on the pump. Fit
the clip. Screw the pump in place.
3. Connect the fuel hose and return fuel line to the
pump. Install the delivery pipes.
4. Prime the fuel system and test run the engine.

Setting injection timing

1. Remove the delivery pipes and return line.
If the block or the camshaft have been replaced,
a 0.5 mm shim shall be placed under the injection
pump flange when installing.
2. Remove the front (1st) pressure valve holder. Re-
move the pressure valve and refit the pressure
valve holder.
It is recommended to remove the pump and hold
it in an upright position when installing the pres-
sure valve holder.
NOTE! Be aware of the pump element so as not to
damage it.
3. Make a drop pipe from i.e. a scrapped delivery
pipe and mount it on the pressure valve holder.
Place a fuel container under the pressure valve
holder drop pipe.
Group 23 Fuel system
57