Engine - Volvo 164 Instruction Book

ENGINE

17 Crankcase ventilation
The engine is provided with positive crank-
case ventilation which prevents the gases
i n the crankcase from being released into
the atmosphere. Instead, they are sucked
i nto the intake manifold and take part in
the combustion process whereupon they
are blown out through the exhaust pipe
together with the other combustion gases.
Every 40 000 km (25 000 miles) remove and
clean the nozzle (1), the hoses (2 and 4)
and the flame protector (3). Rubber hoses
should also be replaced if they are in a
poor condition.
18 Oil filter
The engine is fitted with a full-flow type oil
filter, which means that all the oil passes
through the filter on its way from the oil
pump to the various lubricating points.
I mpurities in the oil are collected in the
filter and gradually block it. For this reason,
the filter must be changed every 10 000 km
(6000 miles). Scrap the old filter then.
I f the oil filter is replaced without the
engine oil being changed, the engine
should be topped up with 0.8 litre (1.4 Imp.
pints=l.7 US pints) of oil.
SERVICING
19 Fuel filter
The fuel filter should be cleaned after
every 10 000 km (6000 miles). Loosen the
plug and clean the filter in the plug. Check
that the gasket is not damaged and make
sure that it seals properly when the plug
with filler is re-fitted.
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