Camshaft Drive Belt - Subaru XT 1988 Service Manual

1-5
PERIODIC MAINTENANCE SERVICES
B
Camshaft Drive Belt
REPLACEMENT
a. Before replacing timing belts, remove radiator fan.
b. Timing belts should be replaced when engine is cold.
c. Be extremely careful not to allow nuts, washers, and other
foreign matters to enter belt cover.
REMOVAL
1) Loosen water pump pulley nut until it can be turned with
fingers.
2) Loosen two alternator mounting bolts.
3) Detach V·belts.
4) Disconnect harness for oil pressure switch or oil pressure
gauge.
5) Remove crankshaft pulley:
Loosen crank pulley bolt, and remove pulley. Use special tool
"FLYWHEEL STOPPER CP" or "DRIVE PLATE STOPPER"
to lock crank pulley.
Tool No. Tool Name
498277000 FLYWHEEL STOPPER
498497000 DRIVE PLATE STOPPER
6) Remove water pump pulley and pulley cover by loosening
four 6 mm nuts.
7) Remove level gauge guide together with level gauge by
loosening one 8 mm bolt.
8) Remove right-hand and left-hand belt covers by loosening
eight 6 mm bolts.
9)
Remove front belt cover by loosening eight 6 mm bolts.
10) Remove timing belts:
(1) Loosen bolts securing tensioner on the side of #1
and
#3
cylinders, and move tensioner upward completely.
Then temporarily tighten bolts.
Use special tool "TENSIONER WRENCH" (499007000)
to move up
#2
and
#4
side tensioner.
(2) Detach timing belt on the side of #1 and
#3
cylin-
ders.
6
MAINTENANCE INTERVAL
[Number of months or km (miles), whichever occurs firstl
Months 7.5 15 22.5 30 37.5 45 52.5 60
x 1,000 km 12 24 36 48 60 72 84 96
x 1,000 miles 7.5 15 22.5 30 37.5 45 52.5
60
m
(3) Remove crankshaft sprocket CPo
(4) Detach timing belt on the side of
#2
and
#4
cylin-
ders.
Put arrow mark to indicate the direction in which belts move
before detaching belts.
INSTALLATION
Loosen the upper bolts
@
and
©
by 1/2 turn in advance.
1) Install timing belts:
(1) Align center line of three lines scribed on flywheel
with timing mark on flywheel housing by moving fly-
wheel.
(2) Align timing mark scribed on left-hand camshaft
sprocket with notch on belt cover.
Fig.
6
~
Timing mark
" ' \ Notch
L1-258
(3) Attach No.2 timing belt to crankshaft sprocket, oil
pump sprocket, idler CP, and camshaft sprocket in
sequence. Be careful not to slacken belt.
,