2.4L 4-Cylinder Engine: General: Specifications

GENERAL SPECIFICATIONS

Description	Specification	Limit
General
Type	In-line, Double Overhead Camshaft
Number of cylinders	4
Bore [2.4 L]	86.5 mm (3.41 in.)
Stroke [2.4 L]	100 mm (3.94 in.)
Total displacement [2.4 L]	2351 cc (143.5 cu. in.)
Compression ratio [2.4 L]	10 : 1
Firing order [2.4 L]	1 - 3 - 4 - 2
Valve timing
Intake valve
Opens (BTDC) [2.4 L]	18°
Closes (ABDC) [2.4 L]	54°
Exhaust valve Opens (BBDC) [2.4 L]	56°
Closes (ATDC) [2.4 L]	8°
Cylinder head
Flatness of gasket surface	Max. 0.03 mm (0.0012 in.)	0.2 mm (0.008 in.)
Flatness of manifold mounting surface	0.15 mm (0.0059 in.)	0.3 mm (0.012 in.)
Dimensions for reworking oversize valve seat hole
Intake
0.3 mm (0.012 in.) O.S.	35.3-35.325 mm (1.39-1.3907 in.)
0.6 mm (0.024 in.) O.S.	35.6-35.625 mm (1.40-1.4026 in.)
Exhaust
0.3 mm (0.012 in.) O.S.	33.3-33.325 mm (1.31-1.3120 in)
0.6 mm (0.024 in.) O.S.	33.6-33.625 mm (1.32-1.3238 in.)
Dimensions for reworking oversize valve guide hole (both intake and exhaust)
0.05 mm (0.002 in.) O.S.	12.05-12.068 mm (0.4751 in.)
0.25 mm (0.010 in.) O.S.	12.25-12.268 mm (0.4830 in.)
0.50 mm (0.020 in.) O.S.	12.50-12.518 mm (0.4928 in.)
Camshaft
Cam height
Intake	35.493 mm (1.3974 in.)	34.993 mm(1.3776 in.)
Exhaust
MAT [2.4 L]	35.204 mm (1.3860 in.)	34.704 mm(1.3663 in.)
A/T	35.204 mm (1.3860 in.)	34.704 mm(1.3663 in.)
Journal O.D.	26 mm (1.02 in.)
Bearing oil clearance	0.040 - 0.076 mm (0.0020 - 0.0030 in.)
End play	0.1 - 0.15 mm (0.004 - 0.006 in.)
Valve
Valve length Intake	109.5 mm (4.311 in.)
Exhaust	109.7 mm (4.319 in.)
Stem O.D.
Intake	6.565-6.580 mm (0.2585-0.2591 in.)
Exhaust	6.530-6.550 mm (0.2571-0.2579 in.)
Face angle	45° - 45°5'
Thickness of valve head (margin)
Intake	1.0 mm (0.039 in.)	0.7 mm (0.028 in.)
Exhaust	1.5 mm (0.059 in.)	1.0 mm (0.039 in.)
Valve stem to valve guide clearance
Intake	0.020-0.047 mm (0.0008-0.0019 in.)	0.1 mm (0.0039 in.)
Exhaust	0.050-0.085 mm (0.0020-0.0033 in.)	0.15 mm (0.0059 in.)
Valve guide
Length
Intake	45.5 mm (1.791 in.)
Exhaust	50.5 mm ( 1.988 in.)
Service over size	0.05, 0.25, 0.50 mm (0.002, 0.010, 0.020 in.)
Valve seat
Width of seat contact	0.9 - 1.3 mm (0.035 - 0.051 in.)
Seat angle	44° - 44°. 5'
Service size	0.3 mm (0.012 in.), 0.6 mm (0.024 in.) oversize
Valve sprin
Free length	45.82 mm (1.804 in.)	44.82 mm (1.7646 in.)
Load	25.3kg / 40 mm (55.8 lb / 1.57 in.) at installed height	4°
Out - of - square	Less than 1.5°
Cylinder block
Cylinder bore [2.4 L]	86.5+0.03 mm (3.406+0.0012 in.)
Out-of-round and taper of cylinder bore	Less than 0.01 mm (0.0004 in.)
Flatness of gasket surface	Less than 0.05 mm (0.0020 in.)	0.1 mm (0.0039 in.)
Piston
O.D. [2.4 L]	86.47 - 86.5 mm (3.404 - 3.406 in.)
Piston - to - cylinder clearance	0.02 - 0.04 mm (0.0008 - 0.0016 in.)
Ring groove width
No. 1	1.22 - 1.24 mm (0.048 - 0.049 in.)
No. 2	1.51 - 1.53 mm (0.059 - 0.060 in.)
Oil	2.81 - 2.83 mm (0.111 - 0.1114 in.)
Service size	0.5 mm (0.020 in.) oversize
Piston ring
Side clearance
No. 1	0.03 - 0.07 mm (0.0012 - 0.0028 in.)
No. 2	0.02 - 006 mm (0.0008 - 0.0024 in.)	0.1 mm (0.0039 in.)
Oil ring	0.06 - 0.15 mm (0.0024 - 0.0059 in.)
End gap
No. 1	0.25 - 0.35 mm (0.0098 - 0.0138 in.)	0.8 mm (0.031 in.)
No. 2	0.40 - 0.55 mm (0.0157 - 0.0216 in.)	0.8 mm (0.031 in.)
Oil ring side rail	0.10 - 0.40 mm (0.0039 - 0.0157 in.)	1.0 mm (0.039 in.)
Connecting rod
Bend	0.05 mm (0.0020 in.)
Twist	0. 1 mm (0.004 in.)
Connecting rod big end to crankshaft side clearance	0.10 - 0.25 mm (0.0040 - 0.0098 in.)	0.4 mm (0.0157 in.)
Piston pin installation force	1250 ± 500 kg (2756 ± 1100 lb.f)
Connecting rod pin O.D	48 - 48.015 mm (1.890 - 1.8903 in.)
Connecting rod bearing oil clearance	0.015 - 0.048 mm (0.0008 - 0.0020 in.)	0.1 mm (0.0039 in.)
Crankshaft main bearing oil clearance
No. 1,2,4,5 journal	0.018 - 0.036 mm (0.0007 - 0.0014 in.)	0.1 mm (0.0039 in.)
No. 3 journal	0.024 - 0.042 mm (0.0009 - 0.0016 in.)
Crankshaft
Journal O.D.	56.982 - 57.000 mm (2.2434 - 2.2441 in.)
Out - of - round of journal and pin	Less than 0.015 mm (0.0006 in.)
Taper of journal and pin	Less than 0.005 (0.0002 in.)
End play	0.05 - 0.25 mm (0.0020 - 0.0098 in.)	0.25 mm (0.0098 in.)
Flywheel
Runout		0.13 mm (0.0051 in.)
Oil pressure at idle [Oil temperature is 75-90°C (167-194°F)]	80 kPa (11.6 psi)
Oil pump
Tip clearance
Drive gear	0.16 - 0.21 mm (0.0063 - 0.0083 in.)	0.25 mm(0.0098 in.)
Driven gear	0.18 - 0.21 mm (0.0071 - 0.0083 in.)	0.25 mm(0.0098 in.)
Side clearance
Drive gear	0.08 - 0.14 mm (0.0031 - 0.0055 in.)	0.25 mm (0.0098 in.)
Driven gear	0.06 - 0.12 mm (0.0024 - 0.0047 in.)	0.25 mm (0.0098 in.)
Relief spring
Free length	46.6 mm ( 1.835 in.)
Load [61 N (13.5 lb)]	40.1 mm (1.579 in.)
Right silent shaft
Front journal diameter	18.467 - 18.480 mm (0.7270 - 0.7276 in.)
Rear journal diameter	40.951 - 40.967 mm (1.6516 -1.6129 in.)
Oil clearance
Front	0.020 - 0.061 mm (0.0008 - 0.0024 in.)
Rear	0.050 - 0.091 mm (0.0020 - 0.0036 in.)
Left silent shaft
Front journal diameter	18.467 - 18.480 mm (0.7270 - 0.7276 in.)
Rear journal diameter	40.951 - 40.967 mm (1.6122 - 1.6130 in.)
Oil clearance
Front	0.020 - 0.054 mm (0.0008 - 0.0021 in.)
Rear	0.042 - 0.083 mm (0.0017 - 0.0033 in.)
Cooling method	Forced circulation with electric fan
Cooling system quantity	7.0 lit (7.4 U.S.qts., 6.1 lmp.qts.) [For DOHC]
Thermostat
Type	Wax pellet type with jiggle valve
Normal opening temperature	82°C (180°F)
Opening temperature range	80°C - 84°C (176°F - 183°F)
Wide open temperature	95°C (203°F)
Radiator cap
Main valve opening pressure	107.9 ± 14.7 kPa (1.1 ± 0.15 kg/cm² , 15.64 ± 2.13 psi)
Main valve closing pressure	83.4 kPa (0.85 kg/cm² , 12.1 psi)
Vacuum valve opening pressure	-6.86 kPa (-0.07 kg/cm² , -1.00 psi)
Air cleaner
Type	Dry type
Element	Unwoven cloth type
Exhaust pipe
Muffler	Expansion resonance type
Suspension system	Rubber hangers
Coolant temperature sensor
Type	Thermister type
Resistance
20°C (68°F)	2.45 ± 0.14 kΩ
80°C (176°F)	0.3222 kΩ