Volkswagen Golf Diesel 2009 Mode D'emploi page 264

Balance Shaft Layout
The oil return channel from the cylinder head is
located on the exhaust side of the cylinder block.
Return oil fl ows through the balance shaft housing.
Idler Gear
Plastic Pipe
Helical Balance
Shaft Drive Gear
Engine Mechanicals
The balance shaft is mounted in a plastic pipe. This
prevents oil returning from the cylinder head from
churning and foaming from direct contact with the
balance shaft.
Oil Return Channel
from Cylinder Head
Oil Return Line
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