Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 131
1D-50 Engine Mechanical: For M16A Engine with VVT
2) Next, check crankshaft pin diameter. On crank web
No.3, four alphabets are stamped as shown in the
figure.
Three kinds of alphabet (“A”, “B” and “C”) represent
the following crankshaft pin diameter respectively.
For example, stamped “A” indicates that
corresponding crankshaft pin diameter is 41.994 –
42.000 mm (1.6533 – 1.6534 in.).
Crankshaft pin outer diameter
3) There are five kinds of standard bearings differing in
thickness. To distinguish them, they are painted in
the following colors at the position as indicated in the
figure.
Each color indicated the following thickness at the
center of bearing.
Standard size of connecting rod bearing
thickness
4) From number stamped on connecting rod and its cap
and alphabets stamped on crank web No.3,
determine new standard bearing to be installed to
connecting rod big end inside, by referring to the
table.
For example, if number stamped on connecting rod
and its cap is “1” and alphabet stamped on crank
web No.3 is “B”, install a new standard bearing
painted in “Black” to its connecting rod big end
inside.
Specification of new standard connecting rod
bearing size
[A]: Connecting rod big end inside diameter number
[B]: Weight indication mark
Stamped
alphabet
Crankshaft pin diameter
A
41.9940 – 42.0000 mm (1.6533 – 1.6534 in.)
B
41.9880 – 41.9939 mm (1.6531 – 1.6532 in.)
C
41.9820 – 41.9879 mm (1.6529 – 1.6530 in.)
[A]: Crankshaft pin diameter for No.1 cylinder
[B]: Crankshaft pin diameter for No.2 cylinder
[C]: Crankshaft pin diameter for No.3 cylinder
[D]: Crankshaft pin diameter for No.4 cylinder
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Color
painted
Bearing thickness
Blue
1.4991 – 1.5020 mm (0.05902 – 0.05913 in.)
Yellow 1.4961 – 1.4990 mm (0.05890 – 0.05901 in.)
Nothing 1.4931 – 1.4960 mm (0.05878 – 0.05889 in.)
Black
1.4901 – 1.4930 mm (0.05867 – 0.05877 in.)
Green
1.4870 – 1.4900 mm (0.05855 – 0.05866 in.)
1. Paint
Number stamped on
connecting rod and its cap
(connecting rod big end
inside diameter)
1
2
3
Alphabet stamped
on crank web No.3
(Crankshaft pin
diameter)
A
Green
Black
Nothing
B
Black
Nothing Yellow
C Nothing Yellow
Blue
New standard bearing to be
installed.
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Engine Mechanical: For M16A Engine with VVT 1D-51
Main Bearings, Crankshaft and Cylinder Block Components
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I5JB0A141026-02
1. CKP sensor (if equipped)
: See “A”
10. Rear oil seal housing
: See “C”
19. Spring pin
2. Knock sensor
11. Rear oil seal
20. Sensor plate bolt
3. Cylinder block
12. Input shaft bearing
21. Oil pressure switch
1D-52 Engine Mechanical: For M16A Engine with VVT
Main Bearings, Crankshaft and Cylinder Block
Removal and Installation
S6JB0A1416035
Removal
1) Remove engine assembly from vehicle referring to
“Engine Assembly Removal and Installation: For
M16A Engine with VVT”.
2) Remove clutch cover, clutch disc and flywheel by
using special tool.
Special tool
(A): 09924–17810
3) Remove piston and connecting rod referring to
4) Remove rear oil seal housing (1).
5) Loosen main bearing cap No.1 and No.2 bolts in
such order as indicated in the figure and remove
them.
6) Remove crankshaft from cylinder block.
Installation
NOTE
• All parts to be installed must be perfectly
clean.
• Be sure to oil crankshaft journals, journal
bearings, thrust bearings, crankpins,
connecting rod bearings, pistons, piston
rings and cylinder bores.
• Journal bearings, bearing caps,
connecting rods, rod bearings, rod bearing
caps, pistons and piston rings are in
combination sets. Do not disturb such
combination and make sure that each part
goes back to where it came from, when
installing.
4. Venturi plug
13. Flywheel
: 22 N
⋅m (2.2 kgf-m, 16.0 lb-ft)
5. Main bearing
: See “B”
14. Main bearing cap
: 5 N
⋅m (0.5 kgf-m, 4.0 lb-ft)
6. Sensor plate
15. Flywheel mounting bolt
: 70 N
⋅m (7.0 kgf-m, 51.0 lb-ft)
7. Crankshaft timing sprocket key
16. Rear oil seal housing mounting bolt
: Tighten 25 N
⋅m (2.5 kgf-m, 18.0 lb-ft) by the specified
procedure.
8. Crankshaft
17. Main bearing cap No.2 bolt
: Tighten 30 N
⋅m (3.0 kgf-m, 22.0 lb-ft), 50 N⋅m (5.0 kgf-
m, 36.5 lb-ft) and 60
° by the specified procedure.
9. Thrust bearing
18. Main bearing cap No.1 bolt
: See “D”
: 11 N
⋅m (1.1 kgf-m, 8.0 lb-ft)
“A”: When installing CKP sensor, use new sensor mounting bolt.
: 13 N
⋅m (1.3 kgf-m, 9.5 lb-ft)
“B”: Upper half of bearing has an oil groove.
: 10 N
⋅m (1.0 kgf-m, 7.5 lb-ft)
“C”: Apply sealant 99000-31250 to mating surface.
: Do not reuse.
“D”: Check main bearing cap No.1 bolt, plastic deformation tightening bolt, for deformation
referring to “Main Bearing Cap No.1 Bolt” under “Main Bearings Inspection: For M16A
Engine with VVT”, if it is reused.
: Apply engine oil to inside / sliding surface.
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Engine Mechanical: For M16A Engine with VVT 1D-53
1) Install sensor plate (1) to crankshaft (2) and tighten
bolts to specified torque.
NOTE
When installing sensor plate, align spring pin
(3) on crankshaft and hole of sensor plate.
Tightening torque
Sensor plate bolt (a): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
2) Install main bearings to cylinder block.
Upper half of bearing (1), has an oil groove (2).
Install it to cylinder block (3), and the other half
without oil groove to bearing cap.
Make sure that two halves are painted in the same
color.
3) Install thrust bearings (1) to cylinder block between
No.2 and No.3 cylinders. Face oil groove (2) sides to
crank webs.
4) Confirm that dowel pins (3) are installed to intake
side of each journal.
5) Install crankshaft to cylinder block.
6) Install bearing cap to cylinder block, making sure to
point arrow mark (on each cap) to crankshaft pulley
side. Fit them sequentially in ascending order, 1, 2,
3, 4 and 5, starting from pulley side.
After applying engine oil to main bearing cap No.1
bolts ((1) – (10)) and main bearing cap No.2 bolts
((11) – (20)), tighten them gradually as follows.
NOTE
If main bearing cap No.1 bolt is reused, make
sure to check main bearing cap No.1 bolt for
deformation referring to “Main Bearing Cap
No.1 Bolt” under “Main Bearings Inspection:
For M16A Engine with VVT”.
a) Tighten bolts ((1) – (10)) to 30 N
⋅m (3.0 kgf-m,
22.0 lb-ft) according to numerical order as shown
by using a 12 corner socket wrenches.
b) In the same manner as in Step a), tighten them
to 50 N
⋅m (5.0 kgf-m, 36.5 lb-ft).
c) In the same manner as in Step a), retighten them
to 60
°.
d) Tighten bolts ((11) – (20)) to 25 N
⋅m (2.5 kgf-m,
18.0 lb-ft) according to numerical order as
shown.
Tightening torque
Main bearing cap No.1 bolt ((1) – (10)): 30
N
⋅m (3.0 kgf-m, 22.0 lb-ft), 50 N⋅m (5.0 kgf-m,
36.5 lb-ft) and then retighten by turning
through 60
°
Main bearing cap No.2 bolt ((11) – (20)): 25
N·m (2.5 kgf-m, 18.0 lb-ft)
CAUTION
!
After tightening cap bolts, check to be sure
that crankshaft rotates smoothly when
turning it by 12 N
⋅m (1.2 kgf-m, 9.0 lb-ft)
torque or below.
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