Page 3484 of 4770

N00999
Plastigage
Z19381
N00920
N00932
Mark
1, 2 or 3Mark
1, 2 or 3 EM±92
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
1264 Author: Date:
(g) Lay a strip of Plastigage across the crank pin.
(h) Install the connecting rod cap.(See page EM±107)
NOTICE:
Do not turn the crankshaft.
(i) Remove the connecting rod cap.
(See steps (b) and (c))
(j) Measure the Plastigage at its widest point.
Standard oil clearance:
STD0.024 ± 0.055 mm (0.0009 ± 0.0022 in.)
U/S 0.250.023 ± 0.069 mm (0.0009 ± 0.0027 in.)
Maximum oil clearance: 0.08 mm (0.0031 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.
HINT:
If using a standard bearing, replace it with one having the same
number marked on the connecting rod cap. There are 3 sizes
of standard bearings, marked º1º, º2º and º3º accordingly.
Reference
Standard sized bearing center wall thickness:
Mark º1º1.484 ± 1.488 mm (0.0584 ± 0.0586 in.)
Mark º2º1.488 ± 1.492 mm (0.0586 ± 0.0587 in.)
Mark º3º1.492 ± 1.496 mm (0.0587 ± 0.0589 in.)
(k) Completely remove the Plastigage.
Page 3485 of 4770

S05989
N00993
P00598
P00105
481062
1
5
9
7
3
S06014
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
EM±93
1265 Author: Date:
16. REMOVE PISTON AND CONNECTING ROD AS-
SEMBLIES
(a) Using a ridge reamer, remove all the carbon from the top
of the cylinder.
(b) Cover the connecting rod bolts with a short piece of hose
to protect the crankshaft from damage.
(c) Push the piston, connecting rod assembly and upper
bearing through the top of the cylinder block.
HINT:
Keep the bearings, connecting rod and cap together.
Arrange the piston and connecting rod assemblies in the
correct order.
17. CHECK CRANKSHAFT THRUST CLEARANCE
Using a dial indicator, measure the thrust clearance while prying
the crankshaft back and forth with a screwdriver.
Standard thrust clearance:
0.020 ± 0.220 mm (0.0008 ± 0.0087 in.)
Maximum thrust clearance: 0.30 mm (0.0118 in.)
If the thrust clearance is greater than maximum, replace the
thrust washer as a set.
Thrust washer thickness:
2.440 ± 2.490 mm (0.0961 ± 0.0980 in.)
18. REMOVE MAIN BEARING CAPS AND CHECK OIL
CLEARANCE
(a) Uniformly loosen and remove the 10 main bearing cap
bolts in several passes, in the sequence shown.
(b) Using 2 screwdrivers, pry out the main bearing cap, and
remove the 5 main bearing caps, 5 lower bearings and 2
lower thrust washers (No.3 main bearing cap only).
HINT:
Keep the lower bearing and main bearing cap together.
Arrange the main bearing caps and lower thrust washers
in the correct order.
(c) Lift out the crankshaft.
Page 3486 of 4770

N01000
Plastigage
P00104
10 159
73
4
86
2
N00988
EM±94
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
1266 Author: Date:
HINT:
Keep the upper bearing and upper thrust washers together with
the cylinder block.
(d) Clean each main journal and bearing.
(e) Check each main journal and bearing for pitting and
scratches.
If the journal or bearing is damaged, replace the bearings. If
necessary, grind or replace the crankshaft.
(f) Place the crankshaft on the cylinder block.
(g) Lay a strip of Plastigage across each journal.
(h) Install the main bearing caps. (See page EM±107)
NOTICE:
Do not turn the crankshaft.
(i) Remove the main bearing caps.
(See steps (a) and (b))
(j) Measure the Plastigage at its widest point.
Standard clearance:
No.3 STD
U/S 0.250.025 ± 0.044 mm (0.0010 ± 0.0017 in.)
0.027 ± 0.067 mm (0.0011 ± 0.0026 in.)
Others STD
U/S 0.250.015 ± 0.034 mm (0.0006 ± 0.0013 in.)
0.019 ± 0.059 mm (0.0007 ± 0.0023 in.)
Maximum clearance: 0.08 mm (0.0031 in.)
HINT:
If replacing the cylinder block subassembly, the bearing stan-
dard clearance will be:
No.30.027 ± 0.054 mm (0.0001 ± 0.0021 in.)
Others0.017 ± 0.044 mm (0.0007 ± 0.0017 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.
Page 3488 of 4770
A06590
A06589
A06587
A01774
A01775
EM±96
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
1268 Author: Date:
20. CHECK FIT BETWEEN PISTON AND PISTON PIN
Try to move the piston back and forth on the piston pin.
If any movement is felt, replace the piston and pin as a set.
21. REMOVE PISTON RINGS
(a) Using a piston ring expander, remove the No.1 and No.2
piston rings.
(b) Remove the 2 side rails and oil ring expander by hand.
HINT:
Arrange the piston rings in correct order only.
22. DISCONNECT CONNECTING ROD FROM PISTON
(a) Using a small screwdriver, pry out the 2 snap rings.
(b) Gradually heat the piston to 80 ± 90°C (176 ± 194°F).
(c) Using a plastic±faced hammer and brass bar, lightly tap
out the piston pin and remove the connecting rod.
HINT:
The piston and pin are a matched set.
Arrange the pistons, pins, rings, connecting rods and
bearings in the correct order.
Page 3491 of 4770

A06593
A07350
Mark 1, 2 or 3
Front
Mark
(Cavity)
A07352
20.5 mm
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
EM±99
1271 Author: Date:
(c) Using solvent and a brush, thoroughly clean the piston.
NOTICE:
Do not use a wire brush.
4. INSPECT PISTON AND CONNECTING ROD
(a) Inspect the piston oil clearance.
HINT:
There are 3 sizes of the standard piston diameter, marked º1º,
º2º and º3º accordingly. The mark is stamped on the piston top.
(1) Using a micrometer, measure the piston diameter at
right angles to the piston pin center line, 20.5 mm
(0.807 in.) from the piston head.
Piston diameter:
STD Mark º1º
Mark º2º
Mark º3º86.815 ± 86.825 mm (3.4179 ± 3.4183 in.)
86.825 ± 86.835 mm (3.4183 ± 3.4186 in.)
86.835 ± 86.845 mm (3.4186 ± 3.4190 in.)
O/S 0.5087.315 ± 87.345 mm (3.4375 ± 3.4387 in.)
(2) Measure the cylinder bore diameter in the thrust
directions. (See step 2)
(3) Subtract the piston diameter measurement from the
cylinder bore diameter measurement.
Standard oil clearance:
0.175 ± 0.195 mm (0.0068 ± 0.0076 in.)
Maximum oil clearance: 0.215 mm (0.0085 in.)
If the oil clearance is greater than maximum, replace all the 4
pistons and rebore all the 4 cylinders. (See page EM±104) If
necessary, replace the cylinder block.
Page 3492 of 4770

S05569A07350A07397
Mark 1, 2 or 3Mark 1, 2 or 3
No.1No.2 No.3No.4
A07348
A01916
110 mm
EM7639
EM±100
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
1272 Author: Date:
HINT:
Use new cylinder block:
Use a piston with the same number mark as the cylinder bore
diameter marked on the cylinder block.
(b) Inspect the piston ring groove clearance.
Using a feeler gauge, measure the clearance between
new piston ring and the wall of the ring groove.
Ring groove clearance (No.1, No.2):
0.030 ± 0.070 mm (0.0012 ± 0.0028 in.)
If the clearance is not as specified, replace the piston.
(c) Inspect the piston ring end gap.
(1) Insert the piston ring into the cylinder bore.
(2) Using a piston, push the piston ring a little beyond
the bottom of the ring travel, 110 mm (4.33 in.) from
the top of the cylinder block.
(3) Using a feeler gauge, measure the end gap.
Standard end gap:
No.10.270 ± 0.490 mm (0.0106 ± 0.0192 in.)
No.20.450 ± 0.670 mm (0.0177 ± 0.0263 in.)
Oil (Side rail)0.100 ± 0.470 mm (0.0039 ± 0.0185 in.)
Maximum end gap:
No.11.09 mm (0.0429 in.)
No.21.27 mm (0.0499 in.)
Oil (Side rail)1.07 mm (0.0421 in.)
Page 3493 of 4770

A06594
Z00064
Z00065
EM7538
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
EM±101
1273 Author: Date:
If the end gap is greater than maximum, replace the piston ring.
If the end gap is greater than maximum, even with a new piston
ring, rebore all the 4 cylinders (see page EM±104) or replace
the cylinder block.
(d) Inspect the piston pin fit.
At 60°C (140°F), you should be able to push the piston
pin into the piston pin hole with your thumb.
(e) Using a rod aligner and feeler gauge, check the connect-
ing rod alignment.
(1) Check for bend.
Maximum bend:
0.05 mm (0.0020 in.) per 100 mm (3.94 in.)
If bend is greater than maximum, replace the connecting rod as-
sembly.
(2) Check for twist
Maximum twist:
0.15 mm (0.0059 in.) per 100 mm (3.94 in.)
If twist is greater than maximum, replace the connecting rod as-
sembly.
(f) Inspect the piston pin oil clearance.
(1) Using a caliper gauge, measure the inside diameter
of the connecting rod bushing.
Bushing inside diameter:
22.005 ± 22.017 mm (0.8663 ± 0.8668 in.)
Page 3494 of 4770

EM0227
P13428
A02826
15 mm
(0.59 in.)
EM±102
± ENGINE MECHANICAL (5S±FE)CYLINDER BLOCK
1274 Author: Date:
(2) Using a micrometer, measure the piston pin diame-
ter.
Piston pin diameter:
21.997 ± 22.009 mm (0.8660 ± 0.8665 in.)
(3) Subtract the piston pin diameter measurement from
the bushing inside diameter measurement.
Standard oil clearance:
0.005 ± 0.011 mm (0.0002 ± 0.0004 in.)
Maximum oil clearance: 0.05 mm (0.0020 in.)
If the oil clearance is greater than maximum, replace the bush-
ing. (See page EM±104) If necessary, replace the piston and
piston pin as a set.
(g) Inspect the connecting rod bolts.
(1) Install the cap nut to the connecting rod bolt. Check
that the cap nut can be turned easily by hand to the
end of the thread.
(2) If the cap nut cannot be turned easily, measure the
outside diameter of the connecting rod bolt with a
vernier caliper.
Standard diameter:
7.860 ± 8.000 mm (0.3094 ± 0.3150 in.)
Minimum diameter: 7.60 mm (0.2992 in.)
HINT:
If the location of this area cannot be judged by visual inspection,
measure the outer diameter at the location shown in the illustra-
tion.
If the outside diameter is less than minimum, replace the con-
necting rod bolt and nut as a set.