Isuzu Rodeo UE. Manual - part 140

6A–49

ENGINE MECHANICAL (X22SE 2.2L)

Crankshaft (12) Inspection

Inspect the surface of the crankshaft journal and crank
pins for excessive wear and damage. Inspect the oil seal
fitting surfaces for excessive wear and damage. Inspect
the oil ports for obstructions.

Inspection and Repair

1. Carefully set the crankshaft. Slowly rotate the

crankshaft and measure the runout. If the crankshaft
runout exceeds the specified limit, the crankshaft
must be replaced.

Runout : 0.03 mm (0.0012 in)

014RW078

2. Measure the diameter and the uneven wear of main

journal and crank pin. If the crankshaft wear exceeds
the specified limit, crankshaft must be replaced.

Main journal diameter : 57.934 mm–57.980 mm

(2.259 in–2.261 in)

Crank pin diameter : 48.939 mm–48.982 mm

(1.909 in.–1.91 in.)

015RS009

6A–50

ENGINE MECHANICAL (X22SE 2.2L)

Crankshaft Bearing Selection

When installing new crankshaft bearings or replacing
bearings, refer to the selection table below. Select and
install the new crankshaft bearings.

Crankshaft grinding dimensions

mm  (in)

Production and Service

Crankshaft bearing journal dia.

Standard size

white

57.974 to 57.981 (2.260–2.261)

green

57.981 to 57.988 (2.261–2.2615)

brown

57.988 to 57.995 (2.2615–2.2618)

Undersize 0.25 (0.0097)

green/blue

57.732 to 57.738 (2.2515–2.2517)

brown/blue

57.738 to 57.745 (2.2517–2.252)

Undersize 0.5 (0.0195)

green/white

57.482 to 57.488 (2.2418–2.242)

brown/white

57.488 to 57.495 (2.242–2.2423)

Guide bearing width

Standard size

25.950 to 26.002 (1.012–1.014)

Undersize 0.25 (0.0097)

26.150 to 26.202 (1.019–1.021)

Undersize 0.5 (0.0195)

26.350 to 26.402 (1.027–1.029)

NOTE: Take care to ensure the bearings are positioned
correctly.
Crankshaft pulse pickup sensor disc inspection and
repair.
Inspect the crankshaft pulse pickup sensor disc for
excessive wear and damage.
Replace the crankshaft pulse pickup sensor disc if the
inspection exceeds wear and damage.

015RW039

Reassembly

1. Crankshaft (12).

f

Install the crankshaft pulse pickup sensor disc.

Torque: 13 N·m (10 lb ft)

f

Install the main bearings to the cylinder block and
the main bearing caps.

f

Be sure that they are positioned correctly.

f

Apply new engine oil to the upper and lower main
bearing faces.

NOTE: Do not apply engine oil to the main bearing back
faces.

f

Carefully mount the crankshaft.

f

Apply engine oil to the thrust washer.

f

Assemble the thrust washer to the No.3 bearing
journal. The oil grooves must face the crankshaft.

f

Tighten the crankshaft baring cap bolts in 3 steps:

1st step: 50 N·m (36 lb ft)

2nd step: 45

°

3rd step: 15

°

6A–51

ENGINE MECHANICAL (X22SE 2.2L)

2. Rear oil seal (10).

f

Coat lip of seal rings thinly with protective grease.

f

Install seal ring into cylinder block, use J–42616 (1)
and J–42613 (2).

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3. Flywheel (9).

1. Thoroughly clean and remove the oil from the

threads of crankshaft.

2. Remove the oil from the crankshaft and flywheel

mounting faces.

3. Mount the flywheel on the crankshaft and then

install the washer.

4. Use stopper (J–42618) to hold the crankshaft.

015RW010

5. Prevent from rotating.

Tighten the flywheel bolts in 3 steps:

1st step: 65 N·m (48 lb ft)

2nd step: 30

°

3rd step: 15

°

NOTE: Do not reuse the bolt.

4. Piston and connecting rod assembly (8)

f

Apply engine oil to the cylinder bores, the
connecting rod bearings and the crankshaft pins.
Check to see that the piston ring end gaps are
correctly positioned.

f

Piston rings position (A) every 180

°

.

Oil scraper rings (B) — offset 25 to 50 mm/1 to 2 in.
to left and right from gap of intermediate ring.

015RW026

f

Insert the piston/connecting rod assemblies into
each cylinder with the piston ring compressor. The
front marks must be facing the front of the engine.

f

Match the numbered caps with the numbers on the
connecting rods. Align the punched marks on the
connecting rods and caps.

f

Arrow (1) on piston head points to engine timing
side, bead on connecting rod points to flywheel
side.

015RW038

6A–52

ENGINE MECHANICAL (X22SE 2.2L)

f

Tighten the bolts in 3 steps:

1st step: 35 N·m (25 lb ft)

2nd step: 45

°

3rd step: 15

°

5. Install the balance unit assembly and tighten the bolts

in 2 steps:

1st step: 20 N·m (14 lb ft)
2nd step: 45

°

Refer to the “Balance Unit Assembly” section of this
manual.

6. Install oil pump assembly (5), refer to “Oil Pump” in

this manual.

7. Install oil strainer.

Torque: 8 N·m (5.8 lb ft)

8. Install oil pan support and tighten the bolts to the

specified torque.

Torque: 20 N·m (14 lb ft)

9. Install oil pan.

1. Completely remove all residual sealant, lubricant

and moisture from the sealing surfaces. The
surfaces must be perfectly dry.

2. Apply a correct width bead of sealant (TB–1207C

or its equivalent) to the contact surfaces of the oil
pan. There must be no gaps in the bead.

3. The oil pan support must be installed within 5

minutes after sealant application.

4. Tighten the bolts in to steps.

1st step: 8 N·m (5.8 lb ft)

2nd step: 30

°

10. Install cylinder head assembly, refer to “Cylinder

Head” in this manual.