Fuel Filter; Compression Test - Volvo 121 Servicing

14 Fuel filter

The fuel filter should be cleaned
after every 10 000 km (6 000 miles).
Loosen the screw and remove the
cover and strainer and clean these.
When refitting the cover make sure
that the gasket seals properly.
15 Air cleaner (B 18 A)
The air cleaner should be replaced
with a new one after every 40 000
km (25 000 miles). With continuous
driving in dusty conditions replace-
ment must be carried out more fre-
quently. When changing the air
cleaner the sealing ring against the
carburettor should be checked.
NOTE. On no account must the
element be moistened or oiled.
16 Air cleaners (B 18 D)
The air cleaners of the SU carbur-
ettors should be replaced with new
ones after every 20 000 km (12 500
miles).
17 Valves
Let you Volvo workshop check the
engine valve clearances after every
10 000 km (6 000 miles). Too nar-
row clearances can cause burnt
valves.
18

Compression test

Every 10 000 km (6 000 miles) a
compression test should be carried
out to get some idea of the condi-
tion of the engine. The test should
be carried out at a Volvo work-
shop.
19 Fan belt
The fan belt tension should be
checked at a Volvo workshop after
every 10 000 kin (6000 miles). In-
correct tension can result in poor
dynamo output.