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Isuzu KB P190. Manual - part 373

6A-132 ENGINE MECHANICAL (4JK1/4JJ1)

Bearing Selection Table

(in)

Crankshaft

Bearing Housing

Crankshaft Journal

Grade

Mark

Diamaeter

Grade

Mark

Diamaeter

Crankshaft

Bearing

Size Code

1 or

69.927-69.932

(2.7530-2.7532)

2 or

- -

69.922-69.927

(2.7528-2.7530)

73.992-

74.000

(2.9131-

2.9134)

3 or

- - -

69.917-69.922

(2.7526-2.7528)

1 or

69.927-69.932

(2.7530-2.7532)

2 or

- -

69.922-69.927

(2.7528-2.7530)

73.983-

73.991

(2.9127-

2.9130)

3 or

- - -

69.917-69.922

(2.7526-2.7528)

1 or

69.927-69.932

(2.7530-2.7532)

2 or

- -

69.922-69.927

(2.7528-2.7530)

73.975-

73.982

(2.9124-

2.9127)

3 or

- - -

69.917-69.922

(2.7526-2.7528)

Installation

1. Install the crankshaft upper bearing.

• The crankshaft upper bearings have an oil hole

and an oil groove. The lower bearings do not.

• Carefully wipe any foreign material from the

upper bearing.

• Locate the position mark applied at

disassembly if the removed upper bearings are

to be reused.

Note:
Do not apply engine oil to the bearing back faces and
the cylinder block bearing fitting surfaces.

015LX125

2. Install the crankshaft assembly.

Apply an ample coat of engine oil to the crankshaft

journals and the crankshaft bearing surfaces

before installing the crankshaft.

015R100004

3. Install the thrust bearing.

• Apply an ample coat of engine oil to the thrust

bearings before installation. Install the thrust

bearings to the crankshaft center journal.

• The thrust bearing oil grooves must be facing

the sliding faces.

ENGINE MECHANICAL (4JK1/4JJ1) 6A-133

015LX115

4. Install the lower crankshaft bearing.

• Before the crankshaft bearing installation,

select the appropriate bearings in accordance

with the description in CRANK BEARING

SELECTION of INSPECTION AND REPAIR.

• Apply the recommended liquid gasket or its

equivalent to the No. 5 crankshaft bearing cap

cylinder body fitting surfaces at the points

shown in the illustration.

Note:
Be sure that the bearing cap fitting surface is completely
free of oil before applying the liquid gasket. ThreeBond
1207B Do not allow the liquid gasket to obstruct the
cylinder thread holes and bearings.

ThreeBond 1207B is a fast-drying liquid gasket. Tighten
the bearing caps immediately after applying the gasket.

015LX127

5. Install the bearing cap.

• Install the bearing caps with the bearing cap

head arrow mark facing the front of the engine.

The bearing cap numbers must be facing up.

015LX128

• Tighten the crankshaft bearing cap bolts to the

specified torque a little at time in the sequence

shown in the illustration.

Crankshaft Bearing Cap Torque

⋅m (kg⋅m / lb ft)

166 (16.9 / 122)

Check to see the crankshaft turns smoothly by

rotating it manually.

Note:
Confirm that the crankshaft turns smoothly.

015LX129

6. Install pistons and connecting rods.

Refer to "Piston and Connecting Rod".

6A-134 ENGINE MECHANICAL (4JK1/4JJ1)

7. Install the crank case.

Refer to "Crank Case and Oil Pan".

8. Install the crankshaft gear.

RTW56ASH017001

9. Install the gear case assembly.

Refer to "Gear Case Assembly".

10.Install the oil pump.

Refer to "Oil Pump".

11.Install the timing gear train.

Refer to "Timing Gear Train".

12.Install the water pump.

Refer to "Water Pump" in Cooling System Section.

13.Install the front cover.

Refer to "Timing Gear Train".

14.Install the crankshaft rear oil seal.

Refer to "Crankshaft Rear Oil Seal".

15.Install the fuel supply pump and fuel rail.

Refer to "Fuel Supply Pump" and "Fuel Rail".

16.Install the cylinder head.

Refer to "Cylinder Head".

17.Install the camshaft assembly.

Refer to "Camshaft Assembly".

18.Install the cylinder head cover.

Refer to "Cylinder Head Cover".

19.Mount the engine assembly on the chassis.

Refer to "Engine Assembly".

ENGINE MECHANICAL (4JK1/4JJ1) 6A-135

Torque Specifications

RTW76AMF000301

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