lock LEXUS SC400 1991 Service Repair Manual

(b) Insert the blade of SST between the No.1 and No.2 oilpan, cut off applied sealer and remove the No.1 oil pan.
SST 09032±00100
NOTICE:
w Be careful not to damage the No.2 oil pan contact surface
of the No.1 oil pan.
w Be careful not to damage the oil pan flange.
10. REMOVE OIL PAN BAFFLE PLATE
Remove the six bolts, two nuts and baffle plate.
11. REMOVE NO.1 OIL PAN (a) Remove the sixteen mounting bolts and two nuts.
(b) Remove the No.1 oil pan by prying the portions (A)between the cylinder block and No.1 oil pan with a
screwdriver.
NOTICE: Be careful not to damage the contact surfaces
of the cylinder block and No.1 oil pan.
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±
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12. REMOVE OIL STRAINERRemove the two bolts, two nuts, oil strainer and gasket.
13. REMOVE OIL FILTER BRACKET (a) Disconnect the oil pressure switch connector.
(b) Remove the two bo lts, stud bolt, the filter bracket and oil
filter assembly.
(c) Remove the gasket from the filter bracket.
14. REMOVE ENGINE SPEED SENSOR (a) Disconnect the speed sensor connector.
(b) Remove the bolt and speed sensor.
15. REMOVE OIL PUMP (a) Remove the eight mounting bolts.
(b) Remove the oil pump by prying the portions between the
cylinder block and oil pump with a screwdriver.
NOTICE: Be careful not to damage the contact surfaces
of the cylinder block and oil pump.
(c) Remove the O±ring from the cylinder block.
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INSTALLATION OF OIL PUMP
(See Components on page LU±8)
1. INSTALL OIL PUMP (a) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the oil
pump cylinder block.
w Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket
surfaces and sealing groove.
w Thoroughly clean all components to remove all the
loose material.
w Using a non±residue solvent, clean both sealing
surfaces.
NOTICE: Do not use a solvent which will affect the
painted surfaces.
(b) Apply seal packing to the oil pump as shown in the illustration.
Seal packing: Part No. 08826±00080 or equivalent
w Install a nozzle that has been cut to a 2±3 mm
(0.08±0.12 in.) opening.
HINT: Avoid applying an excessive amount to the surface. Be
particularly careful near oil passages.
w Parts must be assembled within 5 minutes of
application. Otherwise the material must be
removed and reapplied.
w Immediately remove nozzle from the tube and
reinstall cap.
(c) Place a new gasket in position on the cylinder block.
(d) Engage the spline teeth of the oil pump drive rotor with the large teeth of the crankshaft, and slide the oil pump.
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5. INSTALL NO.1 OIL PAN(a) Remove any old packing (FIPG) material and be carefulnot to drop any oil on the contact surfaces of the No.1
oil pan and cylinder block.
w Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket
surfaces and sealing groove.
w Thoroughly clean all components to remove all the
loose material.
w Using a non±residue solvent, clean both sealing
surfaces.
NOTICE: Do not use a solvent which will affect the
painted surfaces.
(b) Apply seal packing to the No.1 oil pan as shown in the illustration.
Seal packing: Part No. 08826±00080 or equivalent
w Install a nozzle that has been cut to a 2±3 mm
(0.08±0.12 in.) opening.
HINT: Avoid applying an excessive amount to the surface. w Parts must be assembled within 5 minutes of
application. Otherwise the material must be
removed and reapplied.
w Immediately remove nozzle from the tube and
reinstall cap.
(c) Temporarily install the No.1 oil pan with the sixteen bolts
and two nuts.
HINT: Each bolt length is indicated in the illustration.
Bolt length:
A 20 mm (0.78 in.) for 10 mm head
B 35 mm (1.38 in.) for 10 mm head
C 55 mm (2.17 in.) for 12 mm head
(d) Set the No.1 oil pan as shown in the illustration.
NOTICE: Make sure the clearance between the rear ends
of the oil pan and cylinder block is 0.2 mm (0.008 in.) or
less. If the clearance is more than 0.2 mm (0.008 in.), the
oil pan will be stretched.
(e) Tighten the sixteen bolts and two nuts.
Torque:
10 mm head 7.8 N Vm (80 kgf Vcm, 69 in. Vlbf)
12 mm head 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
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(b) Insert the blade of SST between the No.1 and No.2 oilpan, break the seal of the applied sealer and remove the
No.1 oil pan.
SST 09032±00100
NOTICE:
w Be careful not to damage the No.2 oil pan contact surface
of the No.1 oil pan.
w Be careful not to damage the oil pan flange.
9. REMOVE OIL STRAINER
Remove the bolt, two nuts, oil strainer and gasket.
10. REMOVE OIL PAN BAFFLE PLATE Remove the five bolts, two nuts and baffle plate.
11. REMOVE NO.1 OIL PAN (a) Remove the 22 mounting 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 cylinder block and No.1 oil pan.
(c) Remove the O±ring from the cylinder block.
±
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12. REMOVE OIL PUMP(a) Remove the nine mounting bolts.
(b) Using a hammer and a brass bar, remove the oil pumpby carefully tapping the oil pump body.
(c) Remove the two O±ring from the cylinder block.
COMPONENTS FOR DISASSEMBLY AND
ASSEMBLY OF OIL PUMP
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2. INSTALL RELIEF VALVE(a) Slighty mount the pump body in a vise.
NOTICE: Be careful not to damage the pump body.
(b) Insert the relief valve and compression spring into the oil
pump body hole.
(c) Install the plug with a new gasket.
Torque: 49 N Vm (500 kgf Vcm, 36 ft Vlbf)
INSTALLATION OF OIL PUMP
(See Components on page LU±9)
1. INSTALL OIL PUMP (a) Place two new O±rings in position on the cylinder block.
(b) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the oil
pump cylinder block.
w Using a razor blade gasket scraper, remove all the
old packing (FIPG) material from the gasket
surfaces and sealing groove.
w Thoroughly clean all components to remove all the
debris.
w Using a non±residue solvent, clean both sealing
surfaces.
NOTICE: Do not use a solvent which will affect the
painted surfaces.
(c) Apply seal packing to the oil pump as shown in the illustration.
Seal packing: Part No. 08826±00080 or equivalent
w Install a nozzle that has been cut to a 2±3 mm
(0.08±0.12 in.) opening.
HINT: Avoid applying an excessive amount to the surface. Be
particularly careful near oil passages. w Parts must be assembled within 5 minutes of
application. Otherwise the material must be
removed and reapplied.
w Immediately remove nozzle from the tube and
reinstall cap.
±
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(d) Install the oil pump with the seven bolts (A) and two bolts
(B).
Torque: 21 N Vm (210 kgf Vcm, 15 ft Vlbf)
HINT: Hand tighten the (A) bolts first.
2. INSTALL NO.1 OIL PAN (a) Place a new O±ring in the position on the cylinder block.
(b) Remove any old packing (FIPG) material and be careful not to drop any oil on the contact surfaces of the No.1
oil pan and cylinder block.
w Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket
surfaces and sealing groove.
w thoroughly clean all components to remove all the
debris.
w Using a non±residue solvent, clean both sealing
surfaces.
NOTICE: Do not use a solvent which will affect the
painted surfaces.
(c) Apply seal packing to the No.1 oil pan as shown in the illustration.
Seal packing: Parts No. 08826±00080 or equivalent
w Install a nozzle that has been cut to a 3±4 mm
(0.12±0.16 in.) opening.
HINT: Avoid applying an excessive amount to the surface. w Parts must be assembled within 5 minutes of
application. Otherwise the material must be
removed and reapplied.
w Immediately remove nozzle from the tube and
reinstall cap.
(d) Install the No.1 oil pan with the 22 bolts.
Torque: 12 mm head bolt 21 N Vm (210 kgf Vcm, 15 ft Vlbf)
14 mm head bolt 39 N Vm (400 kgf Vcm, 29 ft Vlbf)
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MAINTENANCE OPERATIONS
MA035±04
ENGINE
Cold Engine Operations
1. REPLACE TIMING BELT
(a) Remove the timing belt.(See page EG±46)
(b) Install the timing belt. (See page EG±59)
2. INSPECT DRIVE BELT HINT: A belt tensioner is used, so checking the belt tension
is not necessary.
(a) Visually check the drive belt for excessive wear, frayed cords,
etc.
If necessary, replace the drive belt.
HINT:
w Cracks on the rib side of a drive belt are considered
acceptable. If the drive belt has chunks missing from the
ribs, it should be replaced.
w The drive belt tension can be released by turning the
belt tensioner counterclockwise. The pulley bolt for the
belt tensioner has a left±hand thread.
(b) Check the belt tensioner operation. wCheck that the belt tensioner moves downward when
the drive belt is pressed down at the points indicated in
the illustration with approx. 98 N (10 kgf, 22.0 lbf) of
force.
w Check the ali gnment of the belt tensioner pulley to make
sure the drive belt will not slip off the pulley.
If necessary, replace the belt tensioner.
w Check that the arrow mark on the belt tensioner falls
within area A of the scale.
If it is outside area A, replace the drive belt.
HINT:
w When a new belt is installed, it should lie within area B.
If not, the drive belt is not correct.
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26. FINAL INSPECTION
(a) Check the operation of the body parts:wHood:
Auxiliary catch operates properly Hood locks securely
when closed
w Doors:
Door locks operate properly Doors close properly
w Luggage compartment door:
Door lock operates properly
w Seats:
Seat adjusts easily and locks securely in any position
Front seat back locks securely in any position Folding±
down rear seat backs lock securely
(b) Be sure to deliver a clean car. Especially check: wSteering wheel
w Shift lever knob
w All switch knobs
w Seats
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