1991 LEXUS SC400 engine oil

B. Install connecting rod cap boltsHINT:
wThe connecting rod cap bolts are tightened in 2
progressive steps (steps (b) and (d)).
w If any one of the connecting rod cap bolts is broken or
deformed, replace it.
(a) Apply a light coat of engine oil on the threads and under the heads of the connecting rod cap bolts.
(b) Install and alternately tighten the 2 connecting rod cap bolts
in several passes.
Torque: 25 N Vm (250 kgf Vcm, 18 ft Vlbf)
If any one of the connecting rod cap bolts does not meet the
torque specification, replace the connecting rod cap bolts.
(c) Mark the front of the connecting cap bolt with paint.
(d) Retighten the cap nuts 90
as shown.
(e) Check that the painted mark is now at a 90
angle to the front.
(f) Check that the crankshaft turns smoothly.
8. CHECK CONNECTING ROD OIL CLEARANCE
Using a dial indicator, measure the thrust clearance while
moving the connecting rod back and forth.
Standard thrust clearance:
0.160 ± 0.290 mm (0.0063 ± 0.0138 in.)
Maximum thrust clearance: 0.35 mm (0.0138 in.)
If the thrust clearance is greater than maximum, replace the
connecting rod assembly(s). If necessary, replace the crank-
shaft.
Connecting rod thickness:22.880 ± 22.920 mm (0.9008 ± 0.9024 in.)
±
1UZ±FE ENGINE ENGINE MECHANICALEG±183
WhereEverybodyKnowsYourName

9. INSTALL REAR OIL SEAL RETAINER
(a) Remove any old packing (FIPG) material and be careful notto drop any oil on the contact surfaces of the oil seal retainer
and cylinder block.
wUsing a razor blade and gasket scraper, remove all the
oil packing (FIPG) material from the gasket surfaces and
sealing grooves.
w Thoroughly clean all components to remove all the
loose material.
w Using a non±residue solvent, clean both sealing
surfaces.
(b) Apply seal packing to the oil seal retainer as shown in the illustration.
Seal packing:
Part No. 08826±00080 or equivalent
wIn sta ll a no zzle th a t ha s be e n cu t to a 2 ± 3 mm
(0.08±0.12) opening.
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) Install a new O±ring to the cylinder block.
(d) Install the oil seal retainer with the 7 bolts.
Torque: 7.8 N Vm (80 kgf Vcm, 69 in. Vlbf)
EG±184±
1UZ±FE ENGINE ENGINE MECHANICAL
WhereEverybodyKnowsYourName

POST ASSEMBLY
EG24Z±01
(See Components for Cylinder Block Prepation of
Disassembly and Post Assembly)
1. INSTALL WATER SEAL PLATE
(a) Remove any old packing (FIPG) material and be careful notto drop any oil on the contact surfaces of the seal plate and
cylinder block.
wUsing 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.
(b) Apply seal packing to the seal plate as shown in the illustration.
Seal packing:
Part No. 08826±00080 or equivalent
wInstall a nozzle that has been cut to 2 ± 3 mm (0.08±0.12
in.) opening.
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) Install the seal plate with the 2 nuts. Alternately tighten the
nuts in several passes.
Torque: 14 N Vm (145 kgf Vcm, 10 ft Vlbf)
2. INSTALL GENERATOR BRACKET
Install the generater bracket with the bolt.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
3. 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 and
cylinder block.
wUsing 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.
±
1UZ±FE ENGINE ENGINE MECHANICALEG±185
WhereEverybodyKnowsYourName

(b) Apply seal packing to the oil pump as shown in the illustration.
Seal packing:
Part No. 08826±00080 or equivalent
NOTICE: Avoid applying an excessive amount to the sur-
face. Be particularly careful near oil passage.
w In sta ll a no zzle th a t ha s be e n cu t to a 2 ± 3 mm
(0.08±0.12 in.) opening.
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) Install a new O±ring to the cylinder block.
(d) Engage the spline teeth of the oil pump drive gear with the large teeth of the crankshaft, and slide the oil pump on the
crankshaft.
(e) Install the oil pump with the 8 bolts. Uniformly tighten the bolts
in several passes.
Torque:
16 NVm (160 kgf Vcm, 12 ft Vlbf) for 12 mm head
30 N Vm (310 kgf Vcm, 22 ft Vlbf) for 14 mm head
HINT: Each bolt length is indicated in the illustration.
Bolt length:
50 mm (1.97 in.) for A of 12 mm head
106 mm (4.17 in.) for B of 12 mm head
30 mm (1.18 in.) for C of 12 mm head
40 mm (1.57 in.) for D of 14 mm head
EG±186
±
1UZ±FE ENGINE ENGINE MECHANICAL
WhereEverybodyKnowsYourName

4. INSTALL NO.1 AND NO.2 OIL PANS(See steps 1 to 7 on pages EG±509 to 511)
5. INSTALL WATER PUMP
(a) Remove any old packing (FIPG) material and be careful not to drop any oil on the contact surfaces of the water pump and
cylinder block.
wUsing 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.
(b) Apply seal packing to the water pump as shown in the illustration.
Seal packing:
Part No. 08826±00100 or equivalent
wIn sta ll a no zzle th a t ha s be e n cu t to a 2 ± 3 mm
(0.08±0.12 in.) opening.
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) Install the water pump with the nut, 5 bolts and 2 stud bolts. Uniformly tighten the nut, bolts and stud bolts in several
passes.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
HINT: Use bolts 30 mm (1.18 in.) in length.
6. INSTALL ENGINE WIRE
(a) Install the engine wire to the LH side of the cylinder block with
the 2 bolts.
±
1UZ±FE ENGINE ENGINE MECHANICALEG±187
WhereEverybodyKnowsYourName

(b) Install the engine wire cover with the 3 bolts.
(c) Connect the following connector:wCrankshaft position sensor connector
w Oil pressure switch connector
w Oil level sensor connector
7. INSTALL WATER BYPASS PIPE
(a) Install a new O±ring to the water bypass pipe.
(b) Apply soapy water to the O±ring.
(c) Push the water bypass pipe end into the pipe hole of the water pump.
(d) Install the water bypass pipe with the 2 bolts.
Torque: 18 N Vm (185 kgf Vcm, 13 ft Vlbf)
8. INSTALL KNOCK SENSORS
(a) Using SST, install the 2 knock sensors.
SST 09816±30010
Torque: 44 N Vm (450 kgf Vcm, 33 ft Vlbf)
(b) Connect the 2 knock sensor connectors.
9. INSTALL STARTER
(a) Install the engine wire clamp to the bracket on the starter.
(b) Connect the starter wire with the nut.
(c) Connect the starter connector.
(d) Install the starter with the 2 bolts.
Torque: 39 N Vm (400 kgf Vcm, 29 ft Vlbf)
EG±188±
1UZ±FE ENGINE ENGINE MECHANICAL
WhereEverybodyKnowsYourName

3. INSTALL OIL COOLER PIPE FOR TRANSMISSION
(a) Temporarily install the oil cooler pipe with the 2 pipe bracketsand 2 bolts.
(b) C onnect the 2 oil cooler pipes to the unions on the
transmission.
Torque: 34 N Vm (350 kgf Vcm, 26 ft Vlbf)
(c) Tighten the 2 pipe clamp bolts.
4. INSTALL OIL DIPSTICK GUIDE AND DIPSTICK FOR
TRANSMISSION
(a) Install a new O±ring to the dipstick guide
(b) Apply soapy water to the O±ring
(c) Connect the dipstick guide end to the dipstick tube of the oil
pan.
(d) Install the dipstick guide with the bolt.
(e) Install the dipstick.
±
1UZ±FE ENGINE ENGINE MECHANICALEG±191
WhereEverybodyKnowsYourName

15. INSTALL POWER STEERING (PS) PUMP
(a) Install the PS pump with the nut and 3 bolts. Alternatelytighten the bolts and nut.
Torque:
39 NVm (400 kgf Vcm, 29 ft Vlbf) for bolt
43 N Vm (440 kgf Vcm, 32 ft Vlbf) for nut
16. INSTALL POWER STEERING (PS) RESERVOIR TANK
AND BRACKET
Install the reservoir tank and bracket assembly with the 3
bolts.
17. INSTALL POWER STEERING (PS) TUBES Install the PS tube clamp with the bolt.
18. INSTALL GENERATOR
(a) Install the generator and transmission oil cooler pipe bracket with the bolt and nut.
Torque: 37 N Vm (380 kgf Vcm, 27 ft Vlbf)
(b) Connect the generator connector.
(c) Connect the generator wire with the nut and cap.
19. INSTALL WIRE CLAMP (FOR GENERATOR) AND VSV
(FOR EVAP)
(a) Install the wire clamp to the VSV bracket.
(b) Install the VSV with the 2 bolts.
EG±198
±
1UZ±FE ENGINE ENGINE MEHANICAL
WhereEverybodyKnowsYourName