System Specifications

GENERAL SPECIFICATIONS

General Specifications:

CYLINDER BLOCK

Cylinder Block:

PISTONS

Pistons:

PISTON PINS

Piston Pins:

PISTON RINGS

Piston Rings:

CONNECTING RODS

Connecting Rods:

CRANKSHAFT

Crankshaft:

MAIN BEARING CAP TORQUE AND SEQUENCE





CAUTION: Main bearings are select fit. Refer to Crankshaft Main Bearings for proper bearing selections.

CAUTION: When installing crankshaft, use care not to damage bearing surfaces on the crankshaft.

NOTE: Apply sealant to the tone wheel retaining screws prior to installation.

1. Lubricate upper main bearing halves with clean engine oil.
2. Position crankshaft in cylinder block.
3. Install the thrust washers (1).




CAUTION: The bedplate to cylinder block mating surface must be coated with Mopar(R) Engine RTV sealant prior to installation. Failure to do so will cause severe oil leaks.

NOTE: Make sure that the bedplate and cylinder block sealing surfaces are clean and free of oil or other contaminants. Contaminants on the sealing surfaces may cause main bearing distortion and/or oil leaks.

4. Apply a 2.5mm (0.100 inch) bead of Mopar(R) Engine RTV sealant to the cylinder block-to-bedplate mating surface (1) and (2).
5. Coat the crankshaft main bearing journals with clean engine oil and position the bedplate onto the cylinder block.

NOTE: Lubricate the bedplate retaining bolts with clean engine oil prior to installation.





6. Install the bedplate retaining bolts, making sure to place the stud bolts in the correct location, Torque the bolts in the sequence shown.
- Hand tighten bolts 1D,1G and 1F until the bedplate contacts the block.
- Tighten bolts 1A - 1J to 54 Nm (40 ft. lbs.)
- Tighten bolts 1 - 8 to 7 Nm (62 in. lbs.)
- Turn bolts 1 - 8 an additional 90°.
- Tighten bolts A - E 27 Nm ( 20 ft. lbs.).


CRANKSHAFT MAIN BEARING SELECTION

1. Service main bearings are available in four grades. The chart below identifies the four service grades available.




HARMONIC BALANCER TORQUE





CAUTION: To prevent severe damage to the Crankshaft, Damper or Damper Installer 8512-A, thoroughly clean the damper bore and the crankshaft nose before installing Damper.

1. Align vibration damper slot with key in crankshaft. Slide damper onto crankshaft slightly.

CAUTION: Damper Installer 8512-A, is assembled in a specific sequence. Failure to assemble this tool in this sequence can result in tool failure and severe damage to either the tool or the crankshaft.

2. Assemble Damper Installer 8512-A as follows, The nut (2) is threaded onto the threaded rod (3) first. Then the roller bearing (1) is placed onto the threaded rod (The hardened bearing surface of the bearing MUST face the nut (4) ). Then the hardened washer (5) slides onto the threaded rod. Once assembled coat the threaded rod's threads with Mopar(R) Nickel Anti-Seize or equivalent.




3. Using the Damper Installer 8512A, press the damper onto the crankshaft.
4. Install and tighten vibration damper bolt to 175 Nm (130 ft. lbs.).