Lexus SC300 / Lexus SC400. Manual — part 644
SERVICE SPECIFICATIONS
SERVICE DATA
Oil pressure
at idling
29 kPa (0.3 kgf/cm
2
, 4.3 psi) or more
at 3,000 rpm
294–588 kPa
(3.0–6.0 kgf/cm
2
, 43–85 psi)
Oil pump
Tip clearance
STD
0.110–0.240 mm
0.0043–0.0094 in.
Limit
0.35 mm
0.0138 in.
Side clearance
STD
0.030–0.090 mm
0.0012–0.0035 in.
Limit
0.15 mm
0.0059 in.
Body clearance
STD
0.100–0.175 mm
0.0039–0.0069 in.
Limit
0.30 mm
0.0118 in.
TORQUE SPECIFICATIONS
Part tightened
N
⋅
m
kgf
⋅
cm
ft
⋅
lbf
Oil oumo body cover X Oil pump body
10
105
8
Oil pump X Cylinder block
12 mm head
16
160
12
14 mm head
30
310
22
Engine speed sensor X Oil pump
6.4
65
56 in.
⋅
lbf
Oil filter bracket X Oil pump
18
185
13
Oil strainer X Oil pump
7.8
80
69 in.
⋅
lbf
Oil strainer X Cylinder block
7.8
80
69 in.
⋅
lbf
No.2 oil pan X Cylinder block
10 mm head
7.8
80
69 in.
⋅
lbf
12 mm head
18
185
13
Oil pan baffle plate X No.1 oil pan
7.8
80
69 in.
⋅
lbf
No.2 oil pan X No.1 oil pan
7.8
80
69 in.
⋅
lbf
No.2 oil pan X Cylinder block
7.8
80
69 in.
⋅
lbf
Oil level sensor X No.1 oil pan
5.4
55
48 in.
⋅
lbf
LU–20
–
LUBRICATION SYSTEM
Service Specifications
STARTING SYSTEM
STARTING SYSTEM
NOTE: The specification descriptions ”USA Spec.” and
”Exc. USA Spec.” used in this section indicate the following
specifications.
USA Spec.: USA (50 States) Specifications
Exc. USA Spec.: USA (except California) and Canadian
Specifications.
ST–1
DESCRIPTION
The starter is a reduction type starter with a small, high–speed motor used to drive the pinion gear. It is
installed in the center of the V–bank of the cylinder block.
ST–2
–
STARTING SYSTEM
Description
SYSTEM CIRCUIT
OPERATION
When the ignition switch is turned to START, current flows from terminal 50 to the coil of the solenoid and
the plunger is pulled by the magnetic force of the coil. When the plunger is pulled to the left as shown above,
the contact plate of the plunger allows current from the battery to flow directly from terminal 30 to the motor, and
the starter rotates.
When the engine is running and the ignition switch is returned to ON, the magnetic force of the coil disappears
and the contact plate of the plunger is returned to its original position by the return spring. Battery voltage no
longer flows from terminal 30, so the motor stops.
–
STARTING SYSTEM
System Circuit, Operation
ST–3
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