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Home >> Chrysler >> 2010 >> Sebring Convertible L4-2.4L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Cylinder Block Assembly >> Crankshaft >> Service and Repair >> Removal and Replacement >> Crankshaft - Installation

Crankshaft - Installation






INSTALLATION





The crankshaft is supported in five main bearings. All upper bearing shells (2) in the crankcase have oil grooves and holes. All lower bearing shells (1) are smooth. Crankshaft end play is controlled by a two piece thrust bearing (3) on the number three main bearing journal.

1. Clean main bearing cap bolt holes with Mopar(R) brake parts cleaner or equivalent and blow out with compressed air.
2. Install the main bearing upper (2) shells with the lubrication groove and oil hole in the engine block.
3. Make certain oil holes in block line up with oil hole in bearings and bearing tabs seat in the block tab slots.






NOTE: If the crankshaft is sent out for machine work, it must be balanced as an assembly with the target ring installed.

4. Clean crankshaft and target ring with MOPAR(R) Brake Parts cleaner and dry with compressed air to ensure that the crankshaft mating surface and target ring mounting holes are free from oil and lock patch debris.

NOTE: Always use NEW mounting screws whether installing original or new target ring.

5. Install NEW mounting screws finger tight starting with the #1 location. Make sure engagement occurs with the shoulder of the screws and mounting hole before starting all other screws.
6. Tighten all mounting screws to 13 Nm (110 in-lbs) in the sequence shown.






NOTE: Lightly apply trans gel to thrust bearings to hold bearings in block.

NOTE: The thrust bearings must be installed the notches facing the crankshaft.

7. Install thrust bearings (2) in block (1).

CAUTION: Do not get oil on the ladder frame mating surface. It will affect the ability of the RTV to seal the ladder frame to cylinder block.

NOTE: Ensure main bearing cap bolt holes in the block are clean, dry (free of residual oil or coolant), and threads are not damaged.

8. Oil the bearings and journals. Install crankshaft in engine block.





9. Install lower main bearings (1) into main bearing cap. Make certain the bearing tabs are seated into the bearing cap slots.

NOTE: Main bearing caps are stamped 1 - 5 front to rear. Arrows on the caps must point towards the front of the engine.

10. Install main bearing caps to engine block.
11. Before installing the bolts the threads should be clean and dry.
12. Loosely install main bearing cap bolts.
13. To ensure correct thrust bearing alignment, perform the following steps:
- Step 1: Rotate crankshaft until number 4 piston is at TDC.
- Step 2: Move crankshaft rearward to limits of travel.
- Step 3: Then, move crankshaft forward to limits of travel.
- Step 4: Wedge an appropriate tool between the rear of the cylinder block and the rear crankshaft counterweight. This will hold the crankshaft in its furthest forward position.

CAUTION: There are different sets main bolts supplied with this engine. Each bolt set has a different torque value and engine damage could result if bolts are not torqued correctly. The bolts are not interchangeable.






14. If your bolt heads look like this (1,2), go to step 15. If your bolt heads do not look like this (1,2), go to step 16.






CAUTION: Before tightening bolts, you must identify the bolt head to obtain the correct torque value. Failure to identify the bolts correctly, could result in improperly tightened bolts which could result in engine damage.

15. Tighten bolts using a three step method, in the sequence shown.
- Tighten bolts to 15 Nm (11 ft. lbs.)
- Tighten bolts to 27 Nm (20 ft. lbs.)
- Rotate an additional 45°.

16. Tighten bolts using a three step method, in the sequence shown.
- Tighten bolts to 15 Nm (11 ft. lbs.)
- Tighten bolts to 45 Nm (33 ft. lbs.)
- Rotate an additional 45°.

17. Remove wedge tool used to hold crankshaft.
18. Check the crankshaft turning torque, it should not exceed 5.6 Nm (50 in. lbs.).
19. Check crankshaft end play Procedures.
20. Install connecting rod bearings and caps. Do Not Reuse Connecting Rod Bolts. Tighten connecting rod bolts to 20 Nm + 90° (15 ft. lbs.) + 90°Piston and Connecting Rod - Installation.
21. Install the ladder frame assemblyLadder Frame - Installation.
22. Install the balance shaft module Removal and Replacement





23. Install crankshaft position sensor (2) and tighten bolt (1).
24. Install cylinder head if it was removed Cylinder Head - Installation.





25. Install front crankshaft sprocket (1).
26. Install the timing chain Timing Chain & Sprockets - Installation.
27. Install the timing chain front coverEngine Timing Cover(s) - Installation.
28. Install the oil pan Engine Oil Pan - Installation.
29. Install rear crankshaft oil sealRear Crankshaft Oil Seal - Installation.
30. Install front crankshaft oil sealRear Crankshaft Oil Seal - Installation.





31. Install engine mount support bracket (1).
32. Install crankshaft vibration damper (2)Vibration Damper - Installation.
33. Install water pump pulley (3).





34. Remove engine from repair stand and install engine lift chain (1).
35. Install crankshaft rear oil seal Rear Crankshaft Oil Seal - Installation.
36. Install drive plate/flex plate using new bolts. Tighten bolts to 95 Nm (70 ft. lbs.).
37. Attach transaxle to engine. Tighten bellhousing bolts to 101 Nm (75 ft. lbs.).
38. Install the engine assembly Engine - Installation.





39. Install new oil filter (1) and fill with oil.
40. Fill with coolantService and Repair.
41. Start engine and check for leaks.
42. Install engine cover.

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