Lexus SC300 / Lexus SC400. Manual — part 388
CRANKSHAFT OIL SEALS
REPLACEMENT
EG0C0–0M
HINT: There are 2 methods (A and B) to replace the oil seal
which are as follows:
1.
REPLACE CRANKSHAFT FRONT OIL SEAL
A.
If oil pump is removed from cylinder block:
(a) Using a screwdriver, pry out the oil seal.
(b) Using
SST and a hammer, tap in a new oil seal until its surface
is flush with the oil pump body edge.
SST 09316–60010 (09316–00010)
(c) Apply MP grease to the oil seal lip.
B.
If oil pump is installed to the cylinder block:
(a) Using a knife, cut off the oil seal lip.
(b) Using a screwdriver, pry out the oil seal.
NOTICE: Be careful not to damage the crankshaft. Tape
the screwdriver tip.
(c) Apply MP grease to a new oil seal lip.
(d) Using SST and a hammer, tap in the oil seal until its surface
is flush with the oil pump body edge.
SST 09316–60010 (09316–00010)
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1UZ–FE ENGINE
ENGINE MECHANICAL
EG–175
2.
REPLACE CRANKSHAFT REAR OIL SEAL
A.
If rear oil seal retainer is removed from cylinder block:
(a) Using a screwdriver and hammer, tap out the oil seal.
(b) Using
SST and a hammer, tap in a new oil seal until its surface
is flush with the rear oil seal retainer edge.
SST 09223–56010
(c) Apply MP grease to the oil seal lip.
B.
If rear oil seal retainer is installed to cylinder block:
(a) Using a knife, cut off the oil seal lip.
(b) Using a screwdriver, pry out the oil seal.
NOTICE: Be careful not to damage the crankshaft. Tape
the screwdriver tip.
(c) Apply MP grease to a new oil seal lip.
(d) Using SST and a hammer, tap in the oil seal until its surface
is flush with the rear oil seal retainer edge.
SST 09223–56010
EG–176
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1UZ–FE ENGINE
ENGINE MECHANICAL
PISTON AND CONNECTING ROD
ASSEMBLY
EG0C1–07
1.
ASSEMBLE PISTON AND CONNECTING ROD
(a) Using
a
small screwdriver, install a new snap ring on one side
of the piston pin hole.
(b) Gradually heat the piston to about 60
C (140
F).
(c) Coat the piston pin with engine oil.
(d) Position
the piston front mark with respect to the outside mark
on the connecting rod as shown in the diagram.
NOTICE: The installation direction of the piston and con-
necting rod are different for the RH and LH banks. The RH
piston is marked with “R”, the LH piston with “L”.
(e) Align the piston pin holes of the piston and connecting rod,
and push in the piston pin with your thumb.
(f) Using
a
small screwdriver, install a new snap ring on the other
side of the piston pin hole.
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1UZ–FE ENGINE
ENGINE MECHANICAL
EG–177
2. INSTALL
PISTON
RINGS
(a) Install the oil ring expander and 2 side rails by hand.
(b) Using a piston ring expander, install the 2 compression rings
with the code mark facing upward.
Code mark:
No.1
1R or T
No.2
2R or 2T
(c) Position the piston rings so that the ring ends are as shown.
NOTICE: Do not align the ring ends.
3. INSTALL
BEARINGS
(a) Align the bearing claw with the groove of the connecting rod
or connecting cap.
(b) Install the bearings in the connecting rod and connecting rod
cap.
EG–178
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1UZ–FE ENGINE
ENGINE MECHANICAL
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