SKF TBK298P Manual Del Usuario

LEXUS
Model: Year:
GX 470 4.7L V8 2003-04
2UZ-FE
Engine Identification:
10
AD24242
8
CA1
T
9
11
AD24239
AD67757
12
13
AD67850
14
12
AD67758
(19 ft. lbs.)
AD18402
(181 ft. lbs.)
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TBK298P
Model:
SC 430 4.3L V8
2003-04
10
AD24243
8
CA2
WP
G
7
AD24240
CS
AD24244
1
13
2
6
13
5
4
3
AD24238
ENG
Replacement Interval Guide
Year:
Lexus recommends replacement every
90,000 miles or 72 months, whichever occurs first.
The previous use and service history of the vehicle
must always be taken into account.
Check For Engine Damage
CAUTION: This engine has been identified as an
INTERFERENCE engine in which the possibility of
valve-to-piston damage in the event of a timing belt
failure is MOST LIKELY to occur.
A compression check of all cylinders should be
performed before removing the cylinder head.
Labor Times – hrs
Remove & install:
GX 470
SC 430
Special Tools
Crankshaft pulley holding tool –
º
Nos.09213-70011 & 09330-00021.
º Crankshaft pulley puller – No.09950-50013.
Crankshaft pulley installer – Nos.09223-46011.
º
Special Precautions
º
Disconnect battery ground cable.
º
Do NOT turn crankshaft or camshaft with timing
belt removed.
º
Remove spark plugs to ease turning engine.
º
Turn crankshaft in normal direction of rotation
(unless otherwise stated).
º
Do NOT turn crankshaft via camshaft or other
sprockets.
º
Observe all tightening torques.
Removal
1. Drain coolant.
2. Remove air cleaner inlet.
3. Raise and support front of vehicle.
4. Remove:
¡
Upper engine cover.
¡
Engine splash guard.
¡
Engine under cover.
¡
Radiator upper support seal.
5. Disconnect oil cooler pipes.
6. Remove:
¡
Fan shroud & fluid coupling.
¡
Accessory drive belt.
¡
PAS pump (move to one side -
DO NOT disconnect hoses).
¡
Alternator.
¡
A/C compressor (move to one side -
DO NOT disconnect refrigerant lines).
7. Remove:
¡
Accessory drive belt idler pulley.
¡
Accessory drive belt tensioner.
¡ Upper timing belt covers j
1 .
Fan pulley assembly j
¡ 2
.
8. Remove crankshaft bolt j
3 . Use holding
tools Nos.09213-70011 & 09330-00021.
9. Remove crankshaft pulley j
4 .
Use puller No.09950-50013.
10. Remove:
¡ Timing belt lower covers j
5 .
Crankshaft position sensor plate j
¡ 6
11. Turn the crankshaft clockwise until No.1 cylinder is
at TDC of compression stroke with timing marks
aligned j & j
7 8
.
12. Turn the crankshaft counterclockwise 50a until
sprocket timing mark is at 12 o'clock position j
Camshaft sprocket timing marks will move
approx. 25a.
13. Remove:
Auto tensioner bolts j
¡ 1 2
.
Auto tensioner j
¡
1 3 .
¡
Timing belt.
3.30
WARNING: Camshaft sprockets may spring out
4.10
of alignment when timing belt is removed.
14. Carefully re-align crankshaft to TDC with mark on
oil pump housing aligned j
7
. Re-align camshaft
sprockets to 12 o'clock position j
8 .
IMPORTANT: For maximum timing belt system
life, replace all tensioners and pulleys during
timing belt replacement.
Installation
1. Check:
¡
Check guide and tensioner pulleys run smoothly.
¡
Visually check water pump air hole and water
hole for coolant leakage.
¡
If leakage is found replace water pump.
¡
Turn the water pump pulley to check the
bearings are smooth and quiet, if not then
replace the water pump.
2. Check and reset auto tensioner as follows:
¡
Remove dust boot and check auto tensioner for
any oil leakage replace if necessary j
¡
Push the auto tensioner pushrod firmly against a
wall or floor, if the pushrod moves, replace the
auto tensioner.
¡
Using a hydraulic press with a force of
220-2205 lbs, slowly press the pushrod into the
tensioner unit.
¡
Align the holes of the pushrod and housing and
insert a suitable Allen wrench to retain pushrod
in position j
1 4 .
Install dust boot to tensioner unit j
¡
3. Ensure timing marks are aligned j & j
7
4. Aligning the marks on the belt with the marks on
the sprockets j & j
1 0 1 1 , install the timing belt to the
sprockets and pulleys in the following order:
¡
Crankshaft sprocket.
¡
Guide pulley.
¡
Camshaft sprocket (CA2).
¡
Water pump pulley.
¡
Camshaft sprocket (CA1).
¡
Tensioner pulley.
NOTE: Ensure the timing belt marks (CR),
(L-CAM) and (R-CAM) are aligned with marks on
the sprockets j & j
1 0 1 1 .
x
475TBIS298P
.
9 .
1 3 .
1 3
.
8 .