Volvo 240 User Manual download pdf (Page 72)

1987 Volvo 240

B230F

1. PCV nipple

2. Flame Guard

3. Oil trap

PCV system, B230F engine

The PCV nipple in the intake manifold should be cleaned after 60,000 miles (100,000 km). It is recommended that the flame guard be cleaned

every 20,000 miles (32,000 km)

pg. 67 Servicing

Engine Evaporative Emissions

Evaporative control systems

Vehicles intended for the North American market are equipped with a fuel vapor evaporative control system, which prevents gasoline fumes

from being released into the atmosphere.

The system is comprised of an expansion chamber in the fuel tank, a roll-over valve on the cross member in front of the fuel tank, and a

charcoal canister with built-in vacuum valve. The components are interconnected by hoses which channel fuel vapor from the gas tank to the

charcoal filter where they are stored until the engine is started and then drawn into the engine fuel induction system.

Engine Ignition

Change spark plugs

The spark plugs should be changed every 30,000 miles (48,000 km).

However, prolonged city driving or fast highway driving may necessitate changing spark plugs after 10,000 miles (16,000 km) of driving.

When installing new plugs, be sure to fit the right type and use the correct torque, see "Specifications". When changing the spark plugs, check

that the suppressor connectors are in good condition. Cracked or damaged connectors should be replaced.

When changing spark plugs, clean the cables and cable terminals, also the rubber seals. If the car is driven on roads where salt is used during

the winter, coat the cables with silicone.

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Volvo 240 User Manual Page 72