IMPREZA(NA) A1850BE-A (ENGLISH)
Maintenance and service
11-24
CAUTION
D When disconnecting the spark plug cables,
always grasp the spark plug cap, not the
cables.
D Make sure the cables are replaced in the
correct order.
J Recommended spark plugs
Non-turbo models: RC10YC4 (Champion)
BKR6E-11 (NGK)
BKR5E-11 (NGK)
Turbo models: PFR6G (NGK)
Drive belts
1) Power steering pump pulley
2) Air conditioner compressor pulley
3) Crank pulley
The alternator, power steering pump, and air condi-
tioner compressor depend on drive belts. Satisfacto-
ry performance requires that belt tension be correct.
To check belt tension, place a straightedge (ruler)
across two adjacent pulleys and apply a force of 22
lb (98 N, 10 kg) midway between the pulleys by us-
ing a spring scale. Belt deflection should be the
amount specified. If a belt is loose, cracked, or
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