Specifications - 2.4L Engine
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
GENERAL SPECIFICATIONS - 2.4L ENGINE
| DESCRIPTION | SPECIFICATION | |
|---|---|---|
| Type | In-Line OHV, DOHC | |
| Number of Cylinders | 4 | |
| Firing Order | 1-3-4-2 | |
| Compression Ratio | 9.5:1 | |
| Max. Variation Between Cylinders | 25% | |
| Metric | Standard | |
| Displacement | 2.4 Liters | 148 cu. in. |
| Bore | 87.5 mm | 3.445 in. |
| Stroke | 101.0 mm | 3.976 in. |
| Compression Pressure | 1172-1551 kPa | 170-225 psi |
CYLINDER BLOCK
| DESCRIPTION | SPECIFICATIONS | |
| Metric | Standard | |
| Cylinder Bore Diameter | 87.4924 - 87.5076 mm | 3.4446 - 3.4452 in. |
| Out-of-Round (Max.) | 0.051 mm | 0.002 in. |
| Taper (Max.) | 0.051 mm | 0.002 in. |
PISTONS
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Piston Diameter | 87.456 - 87.474 mm | 3.4431 -3.4439 in. |
| Clearance @ 24.6 mm (0.551 in.) from bottom of skirt | 0.018 - 0.0516 mm | 0.0007 - 0.0020 in. |
| Weight | 345 - 355 grams | 12.17 - 12.52 oz. |
| Land Clearance (Diametrical) | 0.563 - 0.621 mm | 0.022 - 0.024 in. |
| Piston Length | 66.25 mm | 2.608 in. |
| Piston Ring Groove Depth No. 1 | 3.946 - 4.045mm | 0.155 - 0.159 in. |
| Piston Ring Groove Depth No. 2 | 4.555 - 4.680 mm | 0.179 - 0.184 in. |
| Piston Ring Groove Depth No. 3 | 4.108 - 4.220 mm | 0.162 - 0.166 in. |
PISTON PINS
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Clearance in Piston | 0.005 - 0.018 mm | 0.0002 - 0.0008 in. |
| Clearance in Connecting Rod | Interference | |
| Diameter | 21.998 - 22.003 mm | 0.8660 - 0.8662 in. |
| End Play | None | |
| Length | 72.75 - 73.25 mm | 2.864 - 2.883 in. |
PISTON RINGS
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Ring Gap | - | - |
| Top Compression Ring | 0.25 - 0.51 mm | 0.0098 - 0.020 in. |
| Wear Limit | 0.8 mm | 0.031 in. |
| 2nd Compression Ring | 0.23 - 0.48 mm | 0.009 - 0.018 in. |
| Wear Limit | 0.8 mm | 0.031 in. |
| Oil Control Steel Rails | 0.25 - 0.64 mm | 0.0098 - 0.025 in. |
| Wear Limit | 1.00 mm | 0.039 in. |
| Compression Rings | 0.030 - 0.080 mm | 0.0011 - 0.0031 in. |
| Wear Limit | 0.10 mm | 0.004 in. |
| Ring Side Clearance - Oil Ring Pack | 0.012 - 0.178 mm | 0.0004 - 0.0070 in. |
| Ring Width - Compression Rings | 1.47 - 1.50 mm | 0.057 - 0.059 in. |
| Ring Width - Oil Ring Pack | 2.72 - 2.88 mm | 0.107 - 0.1133 in. |
CONNECTING ROD
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Bearing Clearance | 0.025 - 0.071 mm | 0.0009 - 0.0027 in. |
| Wear Limit | 0.075 mm | 0.003 in. |
| Bore Diameter - Piston Pin | 20.96 - 20.98 mm | 0.8252 - 0.8260 in. |
| Bore Diameter - Crankshaft End | 53.007 - 52.993 mm | 2.0868 - 2.0863 in. |
| Side Clearance | 0.13 - 0.38 mm | 0.005 - 0.015 in. |
| Wear Limit | 0.40 mm | 0.016 in. |
| Weight - Total (Less Bearing) | 565.8 grams | 19.96 oz. |
CRANKSHAFT
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Connecting Rod Journal Diameter | 49.984 - 50.000 mm | 1.968 - 1.9685 in. |
| Main Bearing Journal Diameter | 59.992 - 60.008 mm | 2.362 - 2.3625 in. |
| Journal Out-of-Round (Max.) | 0.0035 mm | 0.0003 in. |
| Journal Taper (Max.) | 0.007 mm | 0.0001 in. |
| End Play | 0.09 - 0.24 mm | 0.0035 - 0.0094 in. |
| Wear Limit | 0.38 mm | 0.015 in. |
| Main Bearing Diametrical Clearance | 0.018 - 0.062 mm | 0.0007 - 0.0024 in. |
HYDRAULIC LASH ADJUSTER
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Body Diameter | 15.901 - 15.913 mm | 0.626 - 0.6264 in. |
| Plunger Travel Minimum (Dry) | 3.0 mm | 0.118 in. |
CYLINDER HEAD CAMSHAFT BEARING BORE DIAMETER
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Journals No.1 - 6 | 26.020 - 26.041 mm | 1.024 - 1.025 in. |
CAMSHAFT
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Journal Diameter No. 1 - 6 | 25.976 - 25.995 mm | 1.022 - 1.023 in. |
| Bearing Clearance - Diametrical | 0.025 - 0.065 mm | 0.0009 - 0.0025 in. |
| End Play | 0.05 - 0.17 mm | 0.0019 - 0.0066 in. |
| Lift (Zero Lash) | - | |
| Intake | 8.25 mm | 0.324 in. |
| Exhaust | 6.60 mm | 0.259 in. |
| Intake Valve Timing* | - | - |
| Closes (ABDC) | 44.3° | |
| Opens (ATDC) | 6.2° | |
| Duration | 218.1° | |
| Exhaust Valve Timing* | - | |
| Closes (ATDC) | 0.8° | |
| Opens (BBDC) | 39.9° | |
| Duration | 220.7° | |
| Valve Overlap | 5.4° | |
| * All reading in crankshaft degrees at 0.5 mm (0.019 in.) valve lift. |
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CYLINDER HEAD
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Material | Cast Aluminum | |
| Gasket Thickness (Compressed) | 0.71 mm | 0.028 in. |
VALVE SEAT
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Angle | 44.5 - 45° | |
| Seat Diameter - Intake | 34.37 - 34.63 mm | 1.353 - 1.363 in. |
| Seat Diameter - Exhaust | 27.06 - 27.32 mm | 1.065 - 1.075 in. |
| Runout (Max.) | 0.05 mm | 0.002 in. |
| Valve Seat Width - Intake and Exhaust | 0.9 - 1.3 mm | 0.035 - 0.051 in. |
| Service Limit - Intake | 2.0 mm | 0.079 in. |
| Service Limit - Exhaust | 2.5 mm | 0.098 in. |
VALVE GUIDE
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Diameter I.D. | 5.975 - 6.000 mm | 0.235 - 0.236 in. |
| Guide Bore Diameter | 11.0 - 11.02 mm | 0.4330 - 0.4338 in. |
| Guide Height (spring seat to guide tip) | 13.25 - 13.75 mm | 0.521 - 0.541 in. |
VALVES
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Face Angle - Intake and Exhaust | 44.5 - 45° | |
| Head Diameter - Intake | 34.67 - 34.93 mm | 1.364 - 1.375 in. |
| Head Diameter - Exhaust | 28.32 - 28.52 mm | 1.114 - 1.122 in. |
| Valve Length (Overall) | ||
| Intake | 112.76 - 113.32 mm | 4.439 - 4.461 in. |
| Exhaust | 110.89 - 111.69 mm | 4.365 - 4.397 in. |
| Valve Stem Diameter | ||
| Intake | 5.934 - 5.952 mm | 0.2337 - 0.2344 in. |
| Exhaust | 5.906 - 5.924 mm | 0.2326 - 0.2333 in. |
VALVE MARGIN
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Intake | 1.2 - 1.7 mm | 0.047 - 0.066 in. |
| Service Limit | 0.95 mm | .0037 in. |
| Exhaust | 0.985 - 1.315 mm | 0.038 - 0.051 in. |
| Service Limit | 1.05 mm | .039 in. |
VALVE STEM TIP HEIGHT
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Intake | 48.04 mm | 1.891 in. |
| Exhaust | 47.99 mm | 1.889 in. |
VALVE STEM TO GUIDE CLEARANCE
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Intake | 0.048 - 0.066 mm | 0.0018 - 0.0025 in. |
| Max. Allowable | 0.076 mm | 0.003 in. |
| Service Limit | 0.25 mm | 0.010 in. |
| Exhaust | 0.0736 - 0.094 mm | 0.0029 - 0.0037 in. |
| Max. Allowable | 0.101 mm | 0.004 in. |
| Service Limit | 0.25 mm | 0.010 in. |
VALVE SPRINGS
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Free Length (Approx.) | 49.2 mm | 1.937 in. |
| Nominal Force (Valve Closed) | 334 +/-17 N @ 38.0 mm | 75.08 +/-3.8 lbs. @ 1.496 in. |
| Nominal Force (Valve Open) | 598 +/-30N @ 29.75 mm | 134 +/-6.7 lbs. @ 1.171 in. |
| Installed Height | 38.00 mm | 1.496 in. |
| Number of Coils | 6.9 | |
| Wire Diameter | 3.61 mm | 0.142 in |
OIL PUMP
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| Clearance Over Rotors (Max.) | 0.10 mm | 0.004 in. |
| Cover Out-of-Flat (Max.) | 0.025 mm | 0.001 in. |
| Inner Rotor Thickness (Min.) | 10.699 mm | 0.421 in. |
| Outer Rotor Thickness (Min.) | 10.699 mm | 0.421 in. |
| Outer Rotor Clearance (Max.) | 0.039 mm | 0.015 in. |
| Outer Rotor Diameter (Min.) | 85.924 mm | 3.383 in. |
| Tip Clearance Between Rotors (Max.) | 0.20 mm | 0.008 in. |
OIL PRESSURE
| DESCRIPTION | SPECIFICATION | |
| Metric | Standard | |
| At Curb Idle Speed* | 25 kPa | 4 psi |
| At 3000 rpm | 170 - 550 kPa | 25 - 80 psi |
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CAUTION:
*If pressure is ZERO at curb idle, DO NOT run engine at 3000 rpm.
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