| 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 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)