Volvo S70 Owner's Manual page 209

1999 S70 & V70
Fuel system
The engine is equipped with a multiport fuel injection system
Distributor ignition system
Firing order 1-2-4-5-3
Distributor ignition setting Not adjustable
Spark plugs Bosch FR 7 DC or Champion RC9YC
Spark plug gap 0.028" (0.7 mm)
Turbo-charged models: Champion RC8PYP (or equivalent)
Spark plug gap 0.03" (0.75 mm)
Tightening torque 18.4 ft. lbs. +/- 3.7 ft. lbs. (25 Nm +/- 5 Nm)
WARNING!
The distributor ignition system operates at very high voltages. Special safety precautions must be
followed to prevent injury. Always turn the ignition off when:
Replacing distributor ignition components e.g. plugs, coil, etc.
Do not touch any part of the distributor ignition system while the engine is running. This may
result in unintended movements and body injury.
Replacing spark plugs
The spark plugs should be changed every 30,000 miles (48,000 km). However, city driving or fast
highway driving may necessitate changing after 15,000 miles (24,000 km) of driving. When installing
new plugs, be sure to fit the right type and use correct torque, see "Specifications". When changing the
plugs, check that the suppressor connectors are in good condition. Cracked or damaged connectors
should be replaced. When changing the spark plugs, clean the terminals and the rubber seals.
Front suspension
Spring strut suspension with integrated shock absorbers and control arm linked to the support frame.
Power-assisted rack and pinion steering. Safety type steering column.
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