TIBURON(GK) >2006 > G 2.7 DOHC > Engine Mechanical System > General Information>General Information  
SPECIFICATIONS
Description
Specifications
Limit
General
Type
Number of cylinder
Bore
Stroke
Total displacement
Compression ratio
Firing order
Valve timing
Intake valve
Opens (BTDC)
Closes (ABDC)
Exhaust valve
Opens (BBDC)
Closes (ATDC)

V-type, DOHC
6
86.7mm (3.4133in.)
75mm (2.9528in.)
2,656cc
10 : 1
1-2-3-4-5-6



46°

44°
8

Camshaft
Drive mechanism
Cam height
Intake
Exhaust
Journal diameter
Bearing oil clearance
End play

Cogged type belt

43.95 ~ 44.15mm (1.7303 ~ 1.7382in.)
43.95 ~ 44.15mm (1.7303 ~ 1.7382in.)
25.964 ~ 25.980mm (1.0222 ~ 1.0228in.)
0.02 ~ 0.061mm (0.0007 ~ 0.0024in.)
0.1 ~ 0.15mm (0.0039 ~ 0.0059in.)
43.45mm (1.7106in.)
43.45mm (1.7106in.)
25.914mm (1.0202in.)
0.1mm (0.0039in.)

Cylinder head
Flatness of cylinder head surface
Flatness of manifold mounting surface
Intake
Exhaust
Valve guides hole diameter
0.05 (0.002) O.S.
0.25 (0.010) O.S.
0.50 (0.020) O.S.
Intake valve seat ring hole diameter
0.3 (0.012) O.S.
Exhaust valve seat ring hole diameter
0.3 (0.012) O.S.

Max. 0.03mm (0.0012in.)

Max. 0.15mm (0.0059in.)
Max. 0.15mm (0.0059in.)

11.05 ~ 11.068mm (0.435 ~ 0.436in.)
11.25 ~ 11.268mm (0.443 ~ 0.444in.)
11.50 ~ 11.518mm (0.453 ~ 0.453in.)

33.300 ~ 33.325mm (1.311 ~ 1.312in.)

28.600 ~ 28.621mm (1.126 ~ 1.127in.)

0.05mm (0.0020in.)

0.15mm (0.0059in.)
0.15mm (0.0059in.)
Valve
Overall length
Intake
Exhaust
Stem diameter
Intake
Exhaust
Face angle
Margin
Intake
Exhaust
Clearance (Stem-to-guide)
Intake
Exhaust


96.1mm (3.783in.)
97.15mm (3.825in.)

5.965 ~ 5.98mm (0.235 ~ 0.2354in.)
5.95 ~ 5.965mm (0.234 ~ 0.235in.)
45° ~ 45.5°

1.0mm (0.0394in.)
1.3mm (0.0512in.)

0.02 ~ 0.05mm (0.008 ~ 0.0020in.)
0.030 ~ 0.065mm (0.0012 ~ 0.0026in.)
0.5mm (0.0197in.)
0.8mm (0.0315in.)

0.10mm (0.0039in.)
0.13mm (0.0051in.)
Valve spring
Free length
Load

Out of squareness

42.5mm (1.6732in.)
21kg/35mm (48.4lb/1.3780in.)

Max. 1.5°

41.5mm (1.6339in.)
21.9kg/34mm
(48.4lb/1.3386in.)
Max. 3°
Piston
Diameter (Standard)
Clearance (Piston-to-cylinder)
Ring groove width
No.1
No.2
Oil
Piston for service

86.68 ~ 86.71mm (3.413 ~ 3.414in.)
0.01 ~ 0.03mm (0.0004 ~ 0.0012in.)

1.230 ~ 1.250mm (0.0484 ~ 0.0492in.)
1.220 ~ 1.240mm (0.0480 ~ 0.0488in.)
2.515 ~ 2.535mm (0.0990 ~ 0.0998in.)
0.25mm (0.010in.), 0.50mm (0.020in.)

Piston ring
Number of rings per piston
Compression ring
Oil ring
Compression ring type
No.1
No.2
Oil ring type
Ring end gap
No.1
No.2
Oil ring side rail
Ring side clearance
No.1
No.2
Rings for service

3
2
1

Inner bevel type
Taper type
3-piece type

0.20 ~ 0.35mm (0.0079 ~ 0.0138in.)
0.37 ~ 0.52mm (0.0146 ~ 0.0205in.)
0.2 ~ 0.7mm (0.0079 ~ 0.0276in.)

0.04 ~ 0.08mm (0.0016 ~ 0.0031in.)
0.03 ~ 0.07mm (0.0012 ~ 0.0028in.)
0.25mm (0.010in.), 0.50mm (0.020in.)
0.8mm (0.031in.)
0.8mm (0.031in.)
1.0mm (0.039in.)

0.1mm (0.004in.)
0.1mm (0.004in.)

Connecting rod
Piston pin installation force

Side clearance (big end)
Bend

Bearing oil clearance

2,450 ~ 12,225N
(250 ~ 1,250kg, 551 ~ 2,755lb)
0.10 ~ 0.25mm (0.0039 ~ 0.0098in.)
0.05mm or less/100mm
(0.0020in. or less/3.937in.)
0.018 ~ 0.036mm (0.0007 ~ 0.0014in.)



0.4mm (0.016in.)


0.1mm (0.004in.)
Crankshaft
Journal O.D.
Pin O.D.
Out-of-round, taper of journal and pin
Taper of journal and pin
End play
Main bearing of clearance

61.982 ~ 62.000mm (2.4402 ~ 2.4409in.)
47.982 ~ 48.000mm (1.8891 ~ 1.8898in.)
Max. 0.003mm (0.0012in.)
Max. 0.005mm (0.00020in.)
0.070 ~ 0.250mm (0.0028 ~ 0.0098in.)
0.004 ~ 0.022mm (0.0002 ~ 0.0009in.)
0.4mm (0.016in.)
0.1mm (0.004in.)
Cylinder block
Cylinder bore
Flatness of gasket surface
Out-of-round of cylinder bore

86.7mm (3.4134in.)
Max. 0.03mm (0.0012in.)
Max. 0.02mm (0.0008in.)
0.05mm (0.002in.)

Oil pump
Body clearance
Side clearance

0.100 ~ 0.181mm (0.0039 ~ 0.0071in.)
0.040 ~ 0.095mm (0.0016 ~ 0.0037in.)

Relief spring
Free height
Load

43.8mm (1.724in.)
4.6kg/39.3mm (10lb/1.548in.)

Oil filter
Type
Engine oil pressure


Cooling method

Cooling system quantity

Cartridge, full flow
50kPa (7.3psi) or more
[Conditions : Oil temperature is 75 to 90°C (167 to 194°F)]
Engine coolant cooling, forced circulation with electric fan
7.0lit (7.4U.S.qts., 6.1lmp.qts)

Theromstat
Type
Normal opening temperature
Opening temperature range
Wide open temperature

Wax pellet type with jiggle valve
82 ± 2.0°C (179.6 ± 3.6°F)
80 ~ 84°C (176 ~ 183.2°F)
95°C (203°F)

Radiator cap
Main valve opening pressure

Main valve closing pressure
Vacuum valve opening pressure

107.9 ± 14.7kPa (1.1 ± 0.15kg/cm², 15.65 ± 2.13psi)
83.4kPa (0.85kg/cm², 12.1psi)
-6.86kPa (-0.07kg/cm², -1.00psi)

Air cleaner
Type
Element

Dry
Paper type

Exhaust pipe
Muffler
Suspend system

Expansion reaonance type
Rubber hangers


SERVICE STANDRDS
Standard value
Coolant concentration
Tropical areas
40%
Other areas
50%

COOLANT
Engine coolant
Ethlylen glycol base for aluminum radiator

SEALANT
Engine coolant temperature sensor
LOCTITE 262 or equivalent, Three bond No.1324 or equivalent.
Oil pressure switch
3M ATD No.8660 or Three bond No.1141E
PCV valve
LOCTITE 242 or equivalent

TIGHTENING TORQUE
Item
Nm
kgf.cm
lbf.ft
Camshaft sprocket bolt
90 ~ 110
900 ~ 1,100
65 ~ 85
Cylinder head cover bolt
8 ~ 10
80 ~ 100
5.8 ~ 7.2
Main bearing cap bolt
M10
M8

27~33 + (90°~94°)
13~19 + (90°~94°)

270~300 + (90°~94°)
130~190 + (90°~94°)

19.5~24 + (90°~94°)
10~14 + (90°~94°)
Connecting rod bolt
16~20 + (90°~94°)
160~200 + (90°~94°)
12~15 + (90°~94°)
Cylinder head bolt(Cold engine)
25 + (58°~62°) + (43°~47°)
250 + (58°~62°) + (43°~47°)
18 + (58°~62°) + (43°~47°)
Oil pan drain plug
35 ~ 45
350 ~ 450
25 ~ 33
Lower oil pan bolt
10 ~ 12
100 ~ 120
7 ~ 9
Upper oil pan bolt
[10 × 38mm (0.937 × 1.4961in.)]
[8 × 22mm (0.3150 × 0.8661in.)]
[161.5mm (6.3582in.)]
[152.5mm (6.0039in.)]

30 ~ 42
19 ~ 28
5 ~ 7
5 ~ 7

300 ~ 420
190 ~ 280
50 ~ 70
50 ~ 70

22 ~ 30
14 ~ 20
4 ~ 5
4 ~ 5
Oil screen bolt
15 ~ 22
150 ~ 220
11 ~ 16
Oil pump case bolt
12 ~ 15
120 ~ 150
9 ~ 11
Oil relief valve plug
40 ~ 50
400 ~ 500
29 ~ 36
Oil pressure switch
15 ~ 22
150 ~ 220
11 ~ 16
Oil pressure cover screw
8 ~ 12
80 ~ 120
6 ~ 9
Oil filter
12 ~ 16
120 ~ 160
9 ~ 12
Drive plate and adapte
73 ~ 77
730 ~ 770
53 ~ 56
Air cleaner body installation bolt
8 ~ 12
80 ~ 120
6 ~ 9
Surge tank stay
15 ~ 20
150 ~ 200
11 ~ 14
Air intake surge tank to intake manifold(bolt)
15 ~ 20
150 ~ 200
11 ~ 14
Air intake surge tank to intake manifold(nut)
15 ~ 20
150 ~ 200
11 ~ 14
Intake manifold to cylinder head
19 ~ 21
190 ~ 210
14 ~ 15
Heat protector exhaust manifold
17 ~ 22
170 ~ 220
12 ~ 16
Exhaust manifold to cylinder head
(Self-locking nut)
30 ~ 35
300 ~ 350
22 ~ 26
Oil level gauge guide to engine
12 ~ 15
120 ~ 150
9 ~ 11
Water outlet fitting bolt
17 ~ 20
170 ~ 200
12 ~ 14
Power steering oil pump bracket to cylinder head
17 ~ 26
170 ~ 260
12 ~ 19
Crank position sensor wheel screw
5 ~ 6
50 ~ 60
3.6 ~ 4.3
Engine mounting insulator bolt
50 ~ 65
500 ~ 650
36 ~ 47
Engine mounting bracket nut
60 ~ 80
600 ~ 800
43 ~ 58
Engine mounting bracket bolt
60 ~ 80
600 ~ 800
43 ~ 58
Engine support bracket bolt
60 ~ 70
600 ~ 700
43 ~ 51
Front roll stopper bracket sub frame bolt
50 ~ 65
500 ~ 650
36 ~ 47
Front roll stopper insulator bolt and nut
50 ~ 65
500 ~ 650
36 ~ 47
Rear roll stopper bracket to sub frame
50 ~ 65
500 ~ 650
36 ~ 47
Rear roll stopper insulator bolt and nut
50 ~ 65
500 ~ 650
36 ~ 47
Transaxle mounting bracket bolt
50 ~ 65
500 ~ 650
36 ~ 47
Transaxle mounting insulator bolt
90 ~ 110
900 ~ 1,100
65 ~ 80
Fuel hose clamp to rear cylinder head assembly
12 ~ 15
120 ~ 150
9 ~ 11
Transaxle mounting plate
10 ~ 12
100 ~ 120
7 ~ 9
Rear plate
10 ~ 12
100 ~ 120
7 ~ 9
Oil seal case
10 ~ 12
100 ~ 120
7 ~ 9
Crankshaft pulley bolt
180 ~ 190
1,800 ~ 1,900
130 ~ 138
Timing belt cover bolt
10 ~ 12
100 ~ 12
7 ~ 9
Engine hanger bracket to engine
20 ~ 27
200 ~ 270
14 ~ 20
Alternator mounting bracket to engine
20 ~ 30
200 ~ 300
14 ~ 22
Alternator mounting nut (Engine front case side)
20 ~ 30
200 ~ 300
14 ~ 22
Alternator mounting bolt (Alternator mounting bracket side)
20 ~ 30
200 ~ 300
14 ~ 22
Starter to transmission(nut)
20 ~ 30
200 ~ 300
14 ~ 22
Starter to transmission(bolt)
27 ~ 34
270 ~ 340
20 ~ 25
Drive belt pulley bolt
35 ~ 55
350 ~ 550
25 ~ 40
Drive belt tensioner bolt
20 ~ 27
200 ~ 270
14 ~ 20
Engine coolant pump to cylinder block bolt (Head mark "7" mark)
15 ~ 22
150 ~ 220
11 ~ 16
Engine coolant temperature sensor
20 ~ 40
200 ~ 400
14 ~ 29
Engine coolant inlet fitting attaching bolt
17 ~ 20
170 ~ 200
12 ~ 14
Throttle body to surge tank bolt
15 ~ 20
150 ~ 200
11 ~ 14
Oxygen sensor to exhaust manifold
40 ~ 50
400 ~ 500
29 ~ 36
Front exhaust pipe to exhaust manifold nut
30 ~ 40
300 ~ 400
22 ~ 29
Front exhaust pipe to catalytic converter bolt
40 ~ 60
400 ~ 600
29 ~ 43
Catalytic converter to center exhaust pipe nut
40 ~ 60
400 ~ 600
29 ~ 43
Center exhaust pipe to main muffler nut
40 ~ 60
400 ~ 600
29 ~ 43
Main muffler hanger support bracket bolt
10 ~ 15
100 ~ 150
7 ~ 11
Delivery pipe installation bolt
10 ~ 15
100 ~ 150
7 ~ 11
Timing belt tensioner pulley bolt
43 ~ 55
430 ~ 550
31 ~ 40
Timing belt idler puley bolt
50 ~ 60
500 ~ 600
36 ~ 43
Timing blelt tensioner arm fixed bolt
35 ~ 55
350 ~ 550
25 ~ 40
Auto tensioner fixed bolt
20 ~ 27
200 ~ 270
14 ~ 20
Accelerator cable bracket
4 ~ 6
40 ~ 60
3 ~ 4
Spark plug
20 ~ 30
200 ~ 300
14 ~ 22

COMPRESSION
If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure.
1.
Warm up and stop engine
Allow the engine to warm up to normal operating temperature.
2.
Remove ignition coils. (See EE group - ignition)
3.
Remove spark plugs.
Using a 16mm plug wrench, remove the 6 spark plugs.
4.
Check cylinder compression pressure
A.
Insert a compression gauge into the spark plug hole.

B.
While cranking the engine, measure the compression pressure.
Always use a fully charged battery to obtain engine speed of 250 rpm or more.
C.
Repeat steps (a) through (b) for each cylinder.
This measurement must be done in as short a time as possible.

Compression pressure :
1,420kPa (14.5kgf/cm², 206psi)
Minimum pressure :
1,270kPa (13kgf/cm², 184psi)
Difference between each cylinder :
100kPa (1.0kgf/cm², 15psi) or less

D.
If the cylinder compression in 1 or more cylinders is low, pour a small amount of engine oil into the cylinder through the spark plug hole and repeat steps (a) through (b) for cylinders with low compression.
If adding oil helps the compression, it is likely that the piston rings and/or cylinder bore are worn or damaged.
If pressure stays low, a valve may be sticking or seating is improper, or there may be leakage past the gasket.
5.
Reinstall spark plugs. (See EE group - ignition)
6.
Install ignition coils. (See EE group - ignition)