Lexus GS300/400 (2000 year). Service manual — part 167

S02555

P10688

Pry

P02152

–

LUBRICATION (2JZ–GE)

OIL PUMP

LU–7

1579

9.

REMOVE OIL STRAINER

Remove the bolt, 2 nuts, oil strainer and gasket.
10.

REMOVE OIL PAN BAFFLE PLATE

Remove the 6 bolts and baffle plate.

11.

REMOVE NO.1 OIL PAN

(a)

Remove the 22 bolts.

(b)

Remove the No.1 oil pan by prying the portions between
the cylinder block and No.1 oil pan with a screwdriver.

NOTICE:
Be careful not to damage the contact surfaces of the cylin-
der block and No.1 oil pan.
(c)

Remove the O–ring from the cylinder block.

12.

REMOVE OIL PUMP

(a)

Remove the 9 bolts.

(b)

Using a hammer and a brass bar, remove the oil pump by
carefully tapping the oil pump body.

(c)

Remove the 2 O–rings from the cylinder block.

LU05K–01

P02148

P02443

LU–8

–

LUBRICATION (2JZ–GE)

OIL PUMP

1580

DISASSEMBLY

1.

REMOVE RELIEF VALVE

(a)

Carefully mount the pump body in a soft jaw vise.

(b)

Remove the plug, gasket, compression spring and relief
valve.

NOTICE:
Be careful not to damage the pump body.

2.

REMOVE DRIVE AND DRIVEN ROTORS

Remove the 10 screws, pump body cover, the drive and driven
rotors.

LU05L–01

B01644

P02186

Mark

P02294

P02157

P02156

–

LUBRICATION (2JZ–GE)

OIL PUMP

LU–9

1581

INSPECTION

1.

INSPECT RELIEF VALVE

Coat the valve with engine oil and check that it falls smoothly
into the valve hole under its own weight.
If it doesn’t, replace the relief valve. If necessary, replace the oil
pump assembly.

2.

PLACE DRIVE AND DRIVEN ROTORS INTO OIL PUMP
BODY

The marks on the rotors must face up.

3.

INSPECT ROTOR TIP CLEARANCE

Using a feeler gauge, measure the clearance between the drive
and driven rotors.

Standard tip clearance:
0.060 – 0.240 mm (0.0024 – 0.0094 in.)
Maximum tip clearance:
0.30 mm (0.0118 in.)

If the tip clearance is greater than maximum, replace the rotors
as a set.

4.

INSPECT ROTOR BODY CLEARANCE

Using a feeler gauge, measure the clearance between the driv-
en rotor and pump body.

Standard body clearance:
0.100 – 0.175 mm (0.0039 – 0.0069 in.)
Maximum body clearance:
0.20 mm (0.0079 in.)

If the body clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.

5.

INSPECT ROTOR SIDE CLEARANCE

Using a feeler gauge and precision straight edge, measure the
clearance between the rotors and precision straight edge.

Standard side clearance:
0.030 – 0.090 mm (0.0012 – 0.0035 in.)
Maximum side clearance:
0.12 mm (0.0047 in.)

If the side clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
6.

REMOVE DRIVE AND DRIVEN ROTORS

MA001–07

–

MAINTENANCE

OUTSIDE VEHICLE

MA–1

44

OUTSIDE VEHICLE

GENERAL MAINTENANCE

These are maintenance and inspection items which are considered to be the owner’s responsibility.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
1.

GENERAL NOTES

Maintenance items may vary from country to country. Check the owner’s manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.

2.

TIRES

(a)

Check the pressure with a gauge. If necessary, adjust.

(b)

Check for cuts, damage or excessive wear.

3.

WHEEL NUTS

When checking the tires, check the nuts for looseness or for missing nuts. If necessary, tighten them.
4.

TIRE ROTATION

Check the owner’s manual supplement in which the maintenance schedule is shown.
5.

WINDSHIELD WIPER BLADES

Check for wear or cracks whenever they do not wipe clean. If necessary, replace.
6.

FLUID LEAKS

(a)

Check underneath for leaking fuel, oil, water or other fluid.

(b)

If you smell gasoline fumes or notice any leak, have the cause found and corrected.

7.

DOORS AND ENGINE HOOD

(a)

Check that all doors and the tailgate operate smoothly, and that all latches lock securely.

(b)

Check that the engine hood secondary latch secures the hood from opening when the primary latch
is released.