Recommended Spark Plugs; Drive Belts - Subaru 2008 Impreza Owner's Manual

11-20
Maintenance and service
& Recommended spark plugs
Non-turbo models:
FR5AP-11 (NGK)
Turbo models:
SILFR6A (NGK)

Drive belts

1) Power steering pump pulley
2) Front side belt
3) Alternator
4) Air conditioner compressor pulley
5) Rear side belt
6) Crank pulley
A) 98 N (10 kgf, 22 lbf)
The alternator, power steering pump, and
air conditioner compressor depend on
drive belts. Satisfactory performance re-
quires that belt tension be correct.
To check the tension of the front side belt,
place a straightedge (ruler) across two
adjacent pulleys (alternator and crank
pulley) and apply a force of 22 lbs (98 N,
10 kg) midway between the pulleys by
using a spring scale. Belt deflection
should be the amount specified. If the
front side belt is loose, cracked, or worn,
contact your SUBARU dealer.
Deflection
New belt
Used belt
0.28 – 0.35 0.35 – 0.43
A
(7.0 – 9.0) (9.0 – 11.0)
The rear side belt is a stretch-type belt,
and the deflection and tension do not
need to be checked. If there are cracks or
wear confirmed on the belts and a
squeaking sound is heard from them,
contact your SUBARU dealer.
in (mm)