AR03.20-P-4351BV Remove/Install Crankshaft

Remove/Install Crankshaft











Remove
1 Remove engine
2 Detach automatic transmission from engine
3 Detach top part of oil pan
4 Remove oil pump

NOTE: Push back chain tensioner for this step and take off chain.

5 Detach belt pulley/vibration damper
6 Detach flywheel/driven plate
7 Take off end cover
8 Take off timing case cover
9 Remove connecting rod bearing cap (16)

NOTE:
- While rotating the crankshaft ensure that the connecting rods (11) do not get jammed.
- Mark connecting rod (11) and connecting rod bearing cap (16) on one side to each other for this step.

10 Unbolt crankshaft bearing caps

NOTE: Pay attention to slackening diagram.

11 Carefully pry out the crankshaft bearing caps (410) and the fitted bearing (5).

NOTE: Before removing mark the crankshaft bearing caps (4,10) and fitted bearing (5).

- Carefully pry out the crankshaft bearing cap (10) and fitted bearing (5).

12 Take crankshaft (1) out of crankcase
13 Take crankshaft bearing shells (2) and thrust washers (6) out of the crankcase

Install
14 Insert crankshaft (1)

NOTE: Oil crankshaft journals and crankshaft bearing shells!

- If crankshaft is replaced
- If crankshaft is repaired

15 Tighten crankshaft bearing caps

CAUTION: The crankshaft bearing cap bolts M8X75 and M10X90 must always be replaced otherwise there is a risk of fracture.

NOTE: Tighten all bolts (M10, M8) synchronously as specified in the tightening diagram for this step!

16 Check axial play of crankshaft
- If crankshaft is replaced

17 Inspect connecting rod bolts (12)
18 Install conrod bearings and fit on conrod bearing caps (16)

CAUTION:
- The connecting rod bearing shell (13) with the oil drilling (arrow) must be installed in the connecting rod (11) otherwise the connecting rod bearings will not be lubricated.
- The anti-twist locks (14) of the connecting rod bearing shells (13) must be located in the grooves (15) of the connecting rod (11) and the connecting rod bearing cap (16).
- Installation: Conrod (11) and conrod bearing cap (16) are cracked They must not be installed on the wrong side otherwise the accurate fit is no longer assured!

19 Tighten connecting rod bolts (12)
20 Rotate crankshaft

NOTE: To inspect ease of operation.

21 Fit on end cover

NOTE: Replace radial sealing ring! The sealing lip of the radial seal and its mating surface must not be oiled or greased. Pay attention to dowel sleeves when pressing on end cover!

22 Fit on flywheel/driven plate
23 Fit on timing case cover

NOTE: Replace O-rings and radial seal. The sealing lip of the radial seal and Its mating surface must not be oiled or greased. Pay attention to dowel sleeves when pressing on end cover!

24 Fit on belt pulley/vibration damper
25 Attach oil pump

NOTE: Installation:
- Ensure oil return flow check valve is correctly located.
- Clean strainer of oil pump.
- Fill oil pump with engine oil before installing so that oil is transported when it is first started.

26 Fit on top part of oil pan
27 Inspecting timing of engine
28 Fit on automatic transmission
29 Install Engine.