MECHANICAL(H4DOTC DIESEL) > General Description

COMPONENT

1. V-BELT & GENERATOR

(1)

Collector cover bracket

(5)

V-belt tensioner

Tightening torque:N·m (kgf-m, ft-lb)

(2)

Idler pulley

(6)

Generator

T1:

6.4 (0.7, 4.7)

(3)

Idler pulley cover

(7)

Generator bracket

T2:

25 (2.5, 18.4)

(4)

V-belt

   

T3:

30 (3.1, 22.1)

       

T4:

33 (3.4, 24.3)

       

T5:

57 (5.8, 42.0)

2. A/C COMPRESSOR

(1)

A/C compressor

   

Tightening torque:N·m (kgf-m, ft-lb)

       

T:

25 (2.5, 18.4)

3. VACUUM PUMP

(1)

Vacuum pump

(4)

Vacuum hose

Tightening torque:N·m (kgf-m, ft-lb)

(2)

O-ring

(5)

Air by-pass pipe

T1:

6.4 (0.7, 4.7)

(3)

O-ring

   

T2:

19 (1.9, 14.0)

*1: To the brake booster

4. SCAVENGE PUMP

(1)

Scavenge pump

(5)

Clamp

Tightening torque:N·m (kgf-m, ft-lb)

(2)

O-ring

(6)

Turbo hose

T:

6.4 (0.7, 4.7)

(3)

O-ring

(7)

Turbo pipe

   

(4)

Turbo hose

       

5. ROCKER COVER

(1)

Rocker cover

(3)

Fuel injector gasket

Tightening torque:N·m (kgf-m, ft-lb)

(2)

Rocker cover gasket

   

T:

6.4 (0.7, 4.7)

6. CHAIN COVER

(1)

Oil level gauge

(4)

Oil filler cap

Tightening torque:N·m (kgf-m, ft-lb)

(2)

Oil level gauge guide

(5)

Oil seal

T1:

6.4 (0.7, 4.7)

(3)

O-ring

(6)

Chain cover

T2:

7. OIL PUMP AND OIL PAN

(1)

Oil pump

(5)

Magnet

Tightening torque:N·m (kgf-m, ft-lb)

(2)

O-ring

(6)

Oil pan lower

T1:

6.4 (0.7, 4.7)

(3)

Strainer

(7)

O-ring

T2:

18 (1.8, 13.3)

(4)

Oil pan upper

(8)

Baffle plate

   

8. TIMING CHAIN

(1)

Chain guide (sprocket)

(11)

Reduction sprocket and gear shaft

(21)

Chain tensioner (RH)

(2)

Intake camshaft (LH)

(12)

Fuel pump gear

   

(3)

Exhaust camshaft (LH)

(13)

Reduction sprocket and gear

Tightening torque:N·m (kgf-m, ft-lb)

(4)

Camshaft sprocket (LH)

(14)

Chain guide (RH)

T1:

6.4 (0.7, 4.7)

(5)

Chain guide (LH)

(15)

Timing chain (RH)

T2:

16 (1.6, 11.8)

(6)

Chain guide (between cams)

(16)

Chain tensioner lever (RH)

T3:

25 (2.5, 18.4)

(7)

Timing chain (LH)

(17)

Cam shaft plate

T4:

(8)

Chain tensioner lever (LH)

(18)

Camshaft sprocket (RH)

T5:

63.7 (6.5, 47.0)

(9)

Chain tensioner (LH)

(19)

Exhaust camshaft (RH)

   

(10)

Reduction sprocket and gear plate

(20)

Intake camshaft (RH)

   

9. CYLINDER HEAD AND CAMSHAFT

(1)

Cylinder head (RH)

(11)

Intake camshaft cap (Center LH)

(21)

Cylinder block (LH)

(2)

Cylinder head (LH)

(12)

Exhaust camshaft cap (Rear LH)

(22)

Seal washer

(3)

Cylinder head gasket (RH)

(13)

Exhaust camshaft cap (Center LH)

 

(4)

Cylinder head gasket (LH)

(14)

Front camshaft cap (LH)

Tightening torque:N·m (kgf-m, ft-lb)

(5)

Glow plug

(15)

Intake camshaft cap (Rear RH)

T1:

6.4 (0.7, 4.7)

(6)

Intake camshaft (RH)

(16)

Intake camshaft cap (Center RH)

T2:

11.5 (1.2, 8.5)

(7)

Exhaust camshaft (RH)

(17)

Exhaust camshaft cap (Rear RH)

T3:

9.75 (1.0, 7.2)

(8)

Intake camshaft (LH)

(18)

Exhaust camshaft cap (Center RH)

T4:

18 (1.8, 13.3)

(9)

Exhaust camshaft (LH)

(19)

Front camshaft cap (RH)

T5:

(10)

Intake camshaft cap (Rear LH)

(20)

Cylinder block (RH)

   

10. CYLINDER HEAD

(1)

Intake valve

(9)

Rocker arm pivot (exhaust)

(17)

Valve rocker (intake)

(2)

Exhaust valve

(10)

Valve rocker (exhaust)

(18)

Rocker arm pivot (intake)

(3)

Valve spring sheet (exhaust)

(11)

Valve spring sheet (intake)

(19)

Plug

(4)

Valve guide (exhaust)

(12)

Valve guide (intake)

 

(5)

Stem seal (exhaust)

(13)

Stem seal (intake)

Tightening torque:N·m (kgf-m, ft-lb)

(6)

Valve spring (exhaust)

(14)

Valve spring (intake)

T1:

10 (1.0, 7.4)

(7)

Valve spring retainer (exhaust)

(15)

Valve collet (intake)

T2:

60 (6.1, 44.3)

(8)

Valve collet (exhaust)

(16)

Valve spring retainer (intake)

   

11. GENERATOR BRACKET

(1)

Generator bracket

(3)

O-ring

Tightening torque:N·m (kgf-m, ft-lb)

(2)

O-ring

   

T1:

6.4 (0.7, 4.7)

       

T2:

33 (3.4, 24.3)

12. CYLINDER BLOCK

(1)

Cylinder block (LH)

(7)

Oil cooler ASSY

Tightening torque:N·m (kgf-m, ft-lb)

(2)

Baffle

(8)

Oil seal

T1:

6.4 (0.7, 4.7)

(3)

Cylinder block (RH)

(9)

Crankshaft sensor holder

T2:

37 (3.8, 27.3)

(4)

O-ring

(10)

Oil separator cover

T3:

19 (1.9, 14.0)

(5)

Plug

(11)

Seal washer

T4:

23 (2.3, 17.0)

(6)

Gasket

   

T5:

25 (2.5, 18.4)

       

T6:

70 (7.1, 51.6)

       

T7:

13. CRANKSHAFT AND PISTON

(1)

Crankshaft

(9)

Connecting rod cap

(17)

Piston pin

(2)

Connecting rod

(10)

Crankshaft bearing #1, #3

   

(3)

Piston

(11)

Crankshaft bearing #2, #4

Tightening torque:N·m (kgf-m, ft-lb)

(4)

Snap ring

(12)

Crankshaft bearing #5

T1:

(5)

Top ring

(13)

Crank pulley

T2:

(6)

Second ring

(14)

Crankshaft sensor plate

T3:

(7)

Oil ring

(15)

Woodruff key

   

(8)

Connecting rod bearing

(16)

Flywheel

   

14. ENGINE HARNESS

Structural diagram 1

(1)

Boost control valve

(2)

Securely install the engine harness clips to the vacuum pipe stay.

(3)

Manifold absolute pressure and intake air temperature sensor

(4)

Oil pressure switch

(5)

Securely install the engine harness clip to the intake manifold protector.

(6)

Glow docking connector

(7)

Fuel injector (#4)

(8)

Fuel injector (#2)

(9)

Engine coolant temperature sensor

(10)

Exhaust temperature sensor 1

(11)

Exhaust temperature sensor 2

(12)

Glow plug (#4)

(13)

Glow plug (#2)

(14)

Securely install the engine harness clip to the rocker cover.

(15)

Camshaft position sensor

(16)

Glow plug (#1)

(17)

Glow plug (#3)

(18)

Securely install the engine harness clip to the rocker cover.

(19)

EGR control valve

(20)

Insert the harness connected to the EGR control valve to the underside of the air breather hose.

(21)

Route the harness connected to the camshaft position sensor under the vacuum hose.

(22)

Securely install the engine harness clip to the intake manifold protector.

(23)

Fuel injector (#1)

(24)

Fuel injector (#3)

(25)

Body harness

(26)

Crankshaft position sensor

(27)

Securely install the engine harness clips to the engine coolant pipe. (2 locations)

(28)

Throttle position sensor

(29)

Securely install the engine harness clips to the air breather pipe.

*1: When reusing the engine harness, remove and install the harness and the oil level gauge guide as a set.

Structural diagram 2

(1)

Docking connector (Attach the harness connector securely onto the stay lock.)

(2)

By-pass air pipe

(3)

Engine ground

(4)

Suction control valve

(5)

Fuel temperature sensor

(6)

Fuel pipe

(7)

Camshaft position sensor

(8)

Intake manifold protector

(9)

Manifold absolute pressure and intake air temperature sensor

(10)

Boost control valve

(11)

Fuel injector (#1)

(12)

Fuel injector (#3)

(13)

Glow plug (#1)

(14)

Glow plug (#3)

(15)

Route the engine harness above the fuel pipe.

(16)

Install the engine harness clip to the fuel return pipe stay.

(17)

Engine harness stay

(18)

Docking connector

(19)

Securely install the harness connector to the lock part of the engine harness stay.

(20)

EGR control valve

(21)

Common rail pressure sensor

(22)

Throttle position sensor

(23)

Crankshaft position sensor

(24)

EGR control valve

(25)

Water pipe

(26)

Oil pressure switch

(27)

Route the engine ground under the engine harness.

(28)

Glow plug (#4)

(29)

Glow plug (#2)

(30)

Fuel injector (#4)

(31)

Fuel injector (#2)

(32)

Exhaust temperature sensor 1

(33)

Exhaust temperature sensor 2

(34)

Yellow marking

(35)

Securely install the harness connector to the stay lock part of the oil level gauge guide.

(36)

Install the engine harness stay while pushing the stay against the generator bracket.

*1: When reusing the engine harness, remove and install the harness and the oil level gauge guide as a set.

     

Tightening torque:N·m (kgf-m, ft-lb)

 

T1:

6.4 (0.7, 4.7)

 

T2:

19 (1.9, 14.0)

 

15. ENGINE MOUNTING

(1)

Front cushion rubber

   

Tightening torque:N·m (kgf-m, ft-lb)

       

T1:

35 (3.6, 25.8)

       

T2:

85 (8.7, 62.7)