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5.7L Engine - Service Information: Specifications RAM Pickup 2500

Mechanical 16 illustrations ~779 words

ENGINE SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Displacement5.7 Liters348 CID
Bore99.5 mm3.92 in.
Stroke90.9 mm3.58 in.
Compression Ratio10.5:1
Max. Variation Between Cylinders25%
Firing Order1-8-4-3-6-5-7-2
LubricationPressure Feed - Full Flow Filtration
Cooling SystemLiquid Cooled
Cylinder BlockCast Iron
Cylinder HeadAluminum
CrankshaftNodular Iron
CamshaftCast Iron
PistonsAluminum Alloy
Connecting RodsPowdered Metal

Eagle Engine - 90° V-8 OHV

CYLINDER BLOCK SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Cylinder Bore Diameter99.50 mm3.92 in.
Out of Round (MAX)0.0076 mm0.0003 in.
Taper (MAX)0.0127 mm0.0005 in.
Lifter Bore Diameter21.45 - 21.425 mm0.8444 - 0.8435 in.

CYLINDER BLOCK

PISTON & PISTON PINS SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Clearance
Measured at 38.0 mm (1.5 in.) Below Deck0.031 - 0.058 mm0.012 - 0.023 in.
Ring Groove Diameter
Top Groove90.4 - 90.6 mm3.56 - 3.57 in.
Second Groove88.4 - 88.7 mm3.48 - 3.49 in.
Weight413 grams14.56 oz.
Piston Length53.3 mm2.10 in.
Ring Groove Width
No. 11.23 - 1.26 mm0.048 - 0.0496 in
No. 21.23 - 1.25 mm0.048 - 0.0492 in.
No. 32.03 - 2.05 mm0.079 - 0.080 in.

PISTONS

DESCRIPTIONSPECIFICATION
MetricStandard
Clearance In Piston0.005 - 0.014 mm0.0001 - 0.0005 in.
Diameter24.004 - 24.007 mm0.945 - 0.9451 in.
Length62.99 - 63.21 mm2.47 - 2.48 in.

PISTON PINS

PISTON RING SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Ring Gap
Top Compression Ring0.40 - 0.55 mm0.015 - 0.021 in.
Second Compression Ring0.24 - 0.51 mm0.009 - 0.020 in.
Oil Control Rails0.15 - 0.66 mm0.0059 - 0.0259 in.
Side Clearance
Top Compression Ring0.04 - 0.09 mm0.001 - 0.0035 in.
Second Compression Ring0.04 -.08 mm0.001 - 0.0031 in.
Oil Control Rails0.06 - 0.21 mm0.002 - 0.008 in.
Ring Width
Top Compression Ring1.17 - 1.19 mm0.0460 - 0.0468 in.
Second Compression Ring1.17 - 1.19 mm0.0460 - 0.0468 in.
Oil Control Rails0.387 - 0.413 mm0.015 - 0.016 in.

PISTON RINGS

CONNECTING ROD SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Piston Pin Bore Diameter24.014 - 24.024 mm0.9454 - 0.9458 in.
Side Clearance0.10 - 0.35 mm0.003 - 0.0137 in.

CONNECTING RODS

CRANKSHAFT SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Main Bearing Journal Diameter64.988 - 65.012 mm2.5585 - 2.5595 in.
Bearing Clearance0.023 - 0.051 mm0.0009 - 0.002 in.
Out of Round (MAX)0.005 mm0.0002 in.
Taper (MAX)0.003 mm0.0001 in.
End Play0.052 - 0.282 mm0.002 - 0.011 in.
End Play (MAX)0.282 mm0.011 in.
Connecting Rod Journal Diameter53.992 - 54.008 mm2.126 in.
Bearing Clearance0.020 - 0.060 mm0.0007 - 0.0023 in.
Out of Round (MAX)0.005 mm0.0002 in.
Taper (MAX)0.003 mm0.0001 in.

CRANKSHAFT

CAMSHAFT SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Bearing Journal Diameter
No. 158.2 mm2.29 in.
No. 257.8 mm2.28 in.
No. 357.4 mm2.26 in.
No. 457.0 mm2.24 in.
No. 543.633 mm1.72 in.
Bearing To Journal Clearance Standard
No. 10.040 - 0.080 mm.0015 -.003 in.
No. 20.050 -0.090 mm0.0019 -.0035 in.
No. 30.040 - 0.080 mm.0015 -.003 in.
No. 40.050 - 0.090 mm0.0019 -.0035 in.
No. 50.040 - 0.080 mm.0015 -.003 in.
Camshaft End Play.080 - 0.290mm0.0031 - 0.0114 in.

CAMSHAFT

VALVE TIMING SPECIFICATIONS

DESCRIPTIONSPECIFICATION
Intake
Opens (BTDC)28.2°
Closes (ATDC)239.8°
Duration268°
Exhaust
Opens (BTDC)274.2°
Closes (ATDC)15.8°
Duration290°
Valve Overlap44°

VALVE TIMING

CYLINDER HEAD SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Valve Seat Angle44.5° - 45.0°
Valve Seat Runout (MAX)0.05 mm0.0019 in.
Valve Seat Width (finish)
Intake1.18 - 1.62 mm.0638 in.
Exhaust1.48 - 1.92 mm0.0583 - 0.0756 in.
Guide Bore Diameter (Std.)7.975 - 8.00 mm0.3134 - 0.315 in.

CYLINDER HEAD

HYDRAULIC TAPPET SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Body Diameter21.387 - 21.405 mm0.8420 - 0.8427 in.
Clearance (to bore)0.020 - 0.063 mm0.0008 - 0.0025 in.
Dry Lash3.0 mm (at the valve)0.1181 in. (at the valve)

HYDRAULIC TAPPETS

VALVE SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Face Angle45.0° - 45.5°
Head Diameter
Intake50.67 - 50.93 mm1.99 - 2.01 in.
Exhaust39.27 - 39.53 mm1.55 - 1.56 in.
Length (overall)
Intake123.38 - 123.76 mm4.857 - 4.872 in.
Exhaust120.475 - 120.855 mm4.743 - 4.758 in.
Stem Diameter
Intake7.935 - 7.953 mm0.312 - 0.313 in.
Exhaust7.932 - 7.950 mm0.312 - 0.313 in.
Stem - to - Guide Clearance
Intake0.022 - 0.065 mm0.0008 - 0.0025 in.
Exhaust0.025 - 0.065 mm0.0009 - 0.0025 in.
Valve Lift (@ zero lash)
Intake12.0 mm0.472 in.
Exhaust11.70 mm0.460 in.

VALVES

VALVE SPRING SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Spring Force (valve closed)435.0 N +/- 22.0 N @ 45 mm97.8 lbs +/- 5.0 lbs. @ 1.771 in.
Spring Force (valve open)1077.0 N +/- 48.0 N @ 32.6 mm.242.0 lbs. +/- 11 lbs. @ 1.283 in.
Free Length (approx).55.6 mm2.189 in.
Number of Coils7.95
Wire Diameter4.95 -- 4.1 mm0.194 - 0.161 in.
Installed Height (spring seat to bottom of retainer)46.0 mm1.81 in.

VALVE SPRING

OIL PUMP SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
Clearance Over Rotors (MAX)0.095 mm0.0038 in.
Outer Rotor to Pump Body Clearance (MAX).235 mm0.009 in.
Tip Clearance Between Rotors (MAX)0.150 mm0.006 in.

OIL PUMP

OIL PRESSURE SPECIFICATIONS

DESCRIPTIONSPECIFICATION
MetricStandard
At Curb Idle Speed (MIN)*25 kPa4 psi
@ 3000 RPM170 - 758 kPa25 - 110 psi
* CAUTION: If pressure is zero at curb idle, DO NOT run engine.

OIL PRESSURE

TORQUE SPECIFICATIONS

DESCRIPTIONN.mFt. Lbs.In. Lbs.
Block Pipe Plugs (1/4 - 18 NPT) Oil Galley Plug2015
(1/4 - 18 NPT) Coolant Drain Plug3425
(3/8 NPT)2720240
Camshaft Phaser Bolt8563
Timing Drive Tensioner Bolts1197
Timing Drive Guide Bolts1197
Camshaft Thrust Plate Bolts12106
Camshaft Sprocket Bolt12290
Coil to Cylinder Head Cover Bolts762
Timing Chain Case Cover Bolts2821
Lifting Stud5541
Connecting Rod Cap Bolts21 Plus 90° Turn15 Plus 90° Turn
Main Bearing Cap BoltsSee CRANKSHAFT , Installation , 5.7L Procedure.
Cylinder Head BoltsSee Cylinder Head , Installation , 5.7L Procedure.
Cylinder Head Cover Bolts871
Exhaust Manifold to Cylinder Head2518220
Flexplate to Crankshaft Bolts9570
Flywheel to Crankshaft Bolts7555
Front Insulator Through Bolt and Nut9570
Front Insulator to Support Bracket
Stud and Nut (4WD)4130
Through Bolt and Nut (4WD)10275
Front Insulator to Block Bolts (2WD)9570
Generator Mounting Bolt5541
Intake Manifold BoltsRefer to MANIFOLD, Intake , Installation , 5.7L Procedure.
Lifter Guide Holder129
Oil Pan Bolts129
Oil Dipstick Tube129
Oil Pan Drain Plug3425
Oil Pump Bolts2821
Oil Pump Pickup Tube Bolt and Nut2821
Rear Seal Retainer Bolts1511
Rear Insulator to Bracket6850
Through Bolt (2WD)
Rear Insulator to Crossmember4130
Support Bracket Nut (2WD)
Rear Insulator to Crossmember6850
Nuts (4WD)
Rear Insulator to Transmission6850
Bolts (4WD)
Rear Insulator Bracket Bolts6850
(4WD Automatic)
Rear Support Bracket to Crossmember Flange Nuts4130
Crossmember Flange Nuts
Rear Support Plate to Transfer Case Bolts4130
Case Bolts
Rocker Arm Bolts2216
Thermostat Housing Bolts2821
Throttle Body Bolts129
Transfer Case to Insulator Bolts204150
Mounting Plate Nuts
Transmission Support Bracket Bolts (2WD)6850
Vibration Damper Bolt176130
Water Pump to Timing Chain Case Cover Bolts2821

5.7L ENGINE

Scheme 305

Scheme 305: REMOVAL
Scheme 305: REMOVAL

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  1. Remove the Hood. Refer to «HOOD , Removal»(ref-457777-S11308145592012030200000) .
  2. Disconnect the intake air temperature (IAT) sensor electrical connector (3).
  3. Remove the clean air hose (2).
  4. Remove the engine cover (1). Refer to «COVER, Engine , Removal , 5.7L»(ref-457797-S01258964312012030200000) .
  5. Remove the air cleaner housing (4).
  6. Perform the Fuel System Pressure Release procedure. Refer to «STANDARD PROCEDURE»(ref-457834-S04226998202012030200000) .
  7. Disconnect the negative battery cable (1). WARNING: Do not remove or loosen the radiator draincock with system hot and under pressure. Serious burns from coolant can occur.
  8. Drain the cooling system. Refer to «Standard Procedure»(ref-457792-S30781673372012030200000) . CAUTION: Do not let the tensioner arm snap back to the freearm position, severe damage may occur to the tensioner.
  9. Insert a suitable square drive ratchet into the square hole on the belt tensioner arm (7).
  10. Release the belt tension by rotating the tensioner (7) clockwise until the accessory drive belt (4) can be removed from the generator pulley only. CAUTION: Do not place the viscous fan drive in horizontal position. If stored horizontally, silicone fluid in the viscous fan drive could drain into its bearing assembly and contaminate lubricant.
  11. Remove the viscous fan drive assembly. Refer to «FAN, Cooling, Electric , Removal»(ref-457792-S13033663812012030200000) and «FAN, Cooling, Viscous , Removal»(ref-457792-S41329399382012030200000) .
  12. Recover the refrigerant system. Refer to «Plumbing , Standard Procedure»(ref-457787-S01365783702012030200000) .
  13. Remove the upper radiator seal four push pins (1).
  14. Remove the two plastic rivets (2) and remove the upper radiator seal.
  15. Remove the fan shroud mounting bolts and pull the shroud up and out of the radiator tank clips.
  16. Remove the radiator and A/C condenser as an assembly from the vehicle. Refer to «RADIATOR, Engine Cooling , Removal»(ref-457792-S21225288992012030200000) .
  17. Remove the A/C compressor (4). Refer to «COMPRESSOR, A/C , Removal»(ref-457787-S14624345472012030200000) .
  18. Disconnect the generator electrical connectors and remove the generator assembly (2). Refer to «GENERATOR , Removal»(ref-457799-S36013499732012030200000) .
  19. Disconnect the heater hoses (2) and lower radiator hose (1). NOTE: It is not necessary to disconnect the power steering hoses from the power steering pump, for power steering pump removal.
  20. Remove the three bolts securing the power steering pump through the holes in the pulley (1) and secure the power steering pump out of the way.
  21. Disconnect the fuel supply line. Refer to «FITTING, QUICK CONNECT»(ref-457834-S36340154892012030200000) .
  22. Raise and support the vehicle on a hoist and drain the engine oil.
  23. Remove the front engine mount through bolts (3).
  24. Disconnect the transmission oil cooler lines from their retainers at the oil pan bolts. CAUTION: When servicing or replacing exhaust system components, disconnect the oxygen sensor connector(s). Allowing the exhaust to hang by the oxygen sensor wires will damage the harness and/or sensor.
  25. Disconnect the oxygen sensor electrical connectors (2).
  26. Saturate all exhaust bolts and nuts with Mopar® Rust Penetrant. Allow 5 minutes for penetration.
  27. Remove the exhaust pipe to manifold bolts (3) (left side shown in illustration, right side similar) and disconnect the front exhaust pipe/catalytic converter assembly (4) at the exhaust manifolds.
  28. Disconnect the starter wires and remove the starter (1). Refer to «STARTER , Removal»(ref-457802-S39254669482012030200000) .
  29. Remove the transmission inspection and structural dust covers (2). Refer to «COVER, Structural Dust , Removal , 5.7L»(ref-457797-S31211778382012030200000) .
  30. Remove the drive plate to converter bolts (Automatic transmission equipped vehicles).
  31. Remove both the left and right side oil pan to transmission bolts (1).
  32. Remove the transmission bell housing to engine block bolts (2).
  33. Lower the vehicle.
  34. Remove the intake manifold. Refer to «MANIFOLD, Intake , Removal , 5.7L»(ref-457797-S09573092392012030200000) . NOTE: To remove the oil control valve, the engine must be at room temperature.
  35. Remove the oil control valve (OCV) electrical connector (2).
  36. Remove the oil control valve (OCV) retaining bolt (1) and remove the OCV. NOTE: Do not use air tools to install (special tool #8984B, Fixture, Engine Lifting) Engine Lift Fixture (1) and Adapter (special tool #8984B, Fixture, Engine Lifting) Eagle (2).
  37. Install the engine lift fixture (special tool #8984B, Fixture, Engine Lifting) (1) and adapter (special tool #8984B, Fixture, Engine Lifting) Eagle (2).
  38. Separate the engine from the transmission and remove engine from the vehicle.

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