The Oil Breather pipe comes from below the
dip stick to the Air input pipe to the turbo. This is after the Air Filter.
This should be taken off periodically and
checked for a clear path, by blowing into it. If this is blocked then
it must be replaced.
Turbo Pressure to Diesel Pump[1] and Turbo Pressure to Diesel Pump[2]
The pipe arrowed in Red is taken from the turbo pressurised pipe to
the Diesel Pump. When the turbo is activated, this pressure opens a
valve in the diesel pump and gives an extra spurt of diesel, while
the turbo is pressurising the manifold input.
This should be taken off periodically and
checked for a clear path. If the engine seems down on power this is
the pipe to be checked for leaks or blockages.
Below is the pipe, arrowed, from below the
dip stick to the manifold cover. Again this should be checked for a
clear path internally. On my Motorhome, where the arrow is
indicating, I found the pipe was being worn through due to engine vibrations.
Also shown in the picture can be seen
the air input to the airfilter, turbo output to the intercooler,
turbo output from the intercooler to the manifold.
