engine OPEL FRONTERA 1998 Workshop Manual

ENGINE MECHANICAL 6A – 53
Legend
(1) Bolt
(2) Retainer
(3) Idle Gear A
(4) Idle Gear A Shaft
(5) Align Mark
(6) Crankshaft Gear
(7) O-Ring
13. Idle gear C
1) Use the special tool on idle gear C, turning the
sub gear to align the teeth, then set lock pin.
2) Remove idle gear C fixing bolt then remove the
idle gear C with flange.
Camshaft Gear Tool : 5-8840-2591-0
Legend
(1) Lock pin
(2) Camshaft Gear ToolLegend
(1) Bolt
(2) Retainer
(3) Idle Gear C
(4) Idle Gear C Shaft
(5) Align Mark
(6) Align Mark
(7) Idle Gear A
(8) Balance Shaft Gear LH
(9) Timing Mark
14. Idle gear B
1) Loosen idle gear B fixing bolt to remove idle
gear B with flange.
Legend
(1) Bolt
(2) Retainer
(3) Idle Gear B
(4) Idle Gear B Shaft
(5) Align Mark
3
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4
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014R200007
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014RW181
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014RW175
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014R200008

6A – 54 ENGINE MECHANICAL
15. High pressure oil pump
1) Remove oil pump gear fixing bolt then remove
oil pump.
Legend
(1) O-Ring
(2) High Pressure Oil Pump Gear
(3) Bolt
(4) Timing Mark
16. Remove balance shaft gear LH. and RH.
17. Remove crankshaft gear.
INSTALLATION
1. Crankshaft gear
1) Force key into the crankshaft and insert
crankshaft gear with the crankshaft gear key
groove set on the key.Legend
(1) Crankshaft Gear Installer
(2) Crankshaft Gear
2. Balance shaft gear
1) Install the balance shaft gear RH to balance
shaft, tighten center bolt to the specified torque.
Torque : 32 Nꞏm (3.2 kgꞏm/23 lb ft)
2) Install thrust plate for balance shaft LH before
installing the balance shaft gear LH.
Torque : 25 Nꞏm (2.5 kgꞏm/18 lb ft)
3) Install balance shaft gear LH to balance shaft,
tighten center bolt to the specified torque.
Torque : 32 Nꞏm (3.2 kgꞏm/23 lb ft)
Legend
(1) Center Bolt
(2) Plate
(3) Balance Shaft Gear RH
(4) Timing Mark
4
GEAR:O/PUMP
IDLE GEAR A
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2
3
040RW005
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012RW066
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014RW173

ENGINE MECHANICAL 6A – 55
3. Idle gear A
1) Insert idle gear A shaft to align alignment mark
between idle gear A shaft and timing gear case.
2) Apply engine oil to the shaft surface.
3) Install the idle gear A to align the timing mark
with the crankshaft gear.
4) Install the flange, tighten bolts to the specified
torque.
Torque: 25 Nꞏm (2.5 kgꞏm/18 lb ft)
Legend
(1) Bolt
(2) Retainer
(3) Idle Gear A
(4) Idle Gear A Shaft
(5) Align Mark
(6) Crankshaft Gear
(7) O-Ring
NOTE: Conform not difference timing marks between
each others.
4. Idle gear C
1) Insert idle gear C shaft to align alignment mark
between idle gear C shaft and timing gear case.
2) Apply engine oil to the shaft surface.
3) Align timing mark on idle gear C with balance
shaft gear LH and idle gear A timing marks, then
insert idle gear C.
4) Set position of idle gear C flange with a dowel
pin, tighten bolt to the specified torque.
Torque: 25 Nꞏm (2.5 kgꞏm/18 lb ft)Legend
(1) Bolt
(2) Retainer
(3) Idle Gear C
(4) Idle Gear C Shaft
(5) Align Mark
(6) Align Mark
(7) Idle Gear A
(8) Balance Shaft Gear LH
(9) Timing Mark
5. Idle gear B
1) Insert idle gear B shaft to align alignment mark
between idle gear B shaft and timing gear case.
2) Apply engine oil to the shaft surface.
3) Align timing mark on idle gear B with balance
shaft gear RH and crankshaft gear timing marks,
then insert idle gear B.
4) Install flange and tighten the bolt to the specified
torque.
Torque: 51 Nꞏm (5.2 kgꞏm/38 lb ft)
3
6
5
4
3
2
1 7 1
7
014R200007
12345 56
6 8
8 37
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9
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014RW175

6A – 56 ENGINE MECHANICAL
Legend
(1) Bolt
(2) Retainer
(3) Idle Gear B
(4) Idle Gear B Shaft
(5) Align Mark
6. High pressure oil pump
1) Install O-ring on the high pressure oil pump.
2) Install the high pressure oil pump to the timing
gear case, tighten the nut to the specified
torque.
Torque: 20 Nꞏm (2.0 kgꞏm/14.5 lb ft)
NOTE: Be sure to set O-ring completely.
Legend
(1) O-ring (large)
(2) High pressure oil pump
(3) Nut
(4) O-ring (small)7. High pressure oil pump
1) Install O-ring on the oil pump shaft with grease
and install the gear with the idle gear A timing
mark set at the oil pump gear timing mark.
2) Tighten center bolt to the specified torque.
Torque: 75 Nꞏm (7.6 kgꞏm / 55 lb ft)
NOTE: Be sure to align timing marks with each other.
Legend
(1) O-ring
(2) High Pressure Oil Pump Gear
(3) Center Bolt
(4) Timing Mark
8. Remove lock from idle gear.
1) Remove lock bolt from idle gear A and remove
lock pin from idle gear C.
9. Timing gear case assembly
1) Clean fixing surface of timing gear case.
2) Install the gasket on the idle gear rear side end.
3) Apply liquid gasket to the timing gear case fitting
surface.
NOTE: Be sure to apply liquid gasket evenly.
4) Install timing gear case and tighten bolts to the
specified torque.
Torque: 20 Nꞏm (2.0 kgꞏm / 14.5 lb ft)
NOTE: Must install within 5 minutes after applying liquid
gasket.
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014R200008
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040RW007
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GEAR:O/PUMP
IDLE GEAR A
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2
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040RW005

ENGINE MECHANICAL 6A – 57
10. Vacuum pump
1) Install vacuum pump and tighten bolts to
specified torque.
Torque: 25 Nꞏm (2.5 kgꞏm / 18 lb ft)
2) Install noise insulator cover.
11. Power steering pump (P/S)
1) Install P/S pump.
Torque: 25 Nꞏm (2.5 kgꞏm / 18 lb ft)12. Install front plate.
Torque: 20 Nꞏm (2.0 kgꞏm / 14.5 lb ft)
13. High pressure oil pump pulley.
1) Install oil pump pulley and tighten to specified
torque.
Torque:10 Nꞏm (1.0 kgꞏm / 7.2 lb ft)
2
2~2.5mm
2~2.5mm
Apply liquid gasket around inside
of the bolt hole
Bolt hole
Inside
Outside
F06HX00001
052RW001
430RW017
012RW035

6A – 58 ENGINE MECHANICAL
14. Camshaft pulley
1) Align TDC mark with crankshaft pulley and gear
case cover.
2) Set camshaft stopper on the end of intake and
exhaust camshaft.
Camshaft Stopper: 5-8840-2592-0
3) Install key to camshaft and install camshaft
pulley.
4) Apply engine oil to camshaft pulley fixing bolt
and tighten bolt with angular tightening method.
First step: 40 Nꞏm (4.0 kgꞏm / 29 lb ft)
Second step: 60° to 90°
15. Timing belt
1) Install tensioner and tighten the bolt temporarily.
2) Align timing mark with camshaft pulley timing
mark and timing gear case timing mark.
3) Set No.1 cylinder TDC position.4) Install the timing belt in the following order
camshaft pulley, oil pump pulley, tensioner.
NOTE:
1) It is recommended for easy installation that the belt
be secured with a double clip after it is installed to
each pulley.
2) The “ISUZU” mark should be read from the front of
the engine when installing the timing belt.
5) Install the belt tensioner.
6) Conform not phase difference each pulley.
7) Tension the timing belt with two turns of the
crankshaft.
8) Tighten the tensioner bolt in order A to B to the
specified torque.
Torque: Bolt A 5 Nꞏm (0.5 kgꞏm/3.6 lb ft)
Bolt B 2 Nꞏm (0.2 kgꞏm/1.4 lb ft)
Legend
(1) Align Mark
(2) Camshaft Pulley
(3) Timing Belt
(4) Oil Pump Pulley
(5) Bolt B
(6) Tensioner Assy
(7) Tensioner Bolt A
(8) Tensioner Spring
16. CMP sensor bracket
1) Install CMP sensor bracket and tighten bolt to
the specified torque.
Torque: 20 Nꞏm (2.0 kgꞏm / 14.5 lb ft)
17. Timing belt cover
1) Install timing belt cover and tighten bolt to the
specified torque.
Torque: 9 Nꞏm (0.9 kgꞏm / 6.5 lb ft)
2) Tighten CMP sensor to the specified torque.
Torque: 9 Nꞏm (0.9 kgꞏm / 6.5 lb ft)
012RW036
012RW099
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F06RW055

ENGINE MECHANICAL 6A – 59
18. Crankshaft damper pulley
1) Insert damper pulley with the crankshaft key
groove set on the key.
2) Tighten damper pulley bolt to the specified
torque.
Torque: 220 Nꞏm (22 kgꞏm / 159 lb ft)19. Cooling fan Assembly
1) Install the cooling fan assembly to the fan pulley,
tighten the nuts to the specified torque.
Torque: 8 Nꞏm (0.8 kgꞏm / 5.8 lb ft)
20. AC generator drive belt.
1) Temporarily tighten generator fixing bolts and
belt tensioner adjustment plate.
2) Tension the generator drive belt then tighten the
generator fixing bolt.
Torque: 40 Nꞏm (4.0 kgꞏm / 29 lb ft)
3) Tighten the belt tensioner adjustment plate bolt.
Torque: 20 Nꞏm (2.0 kgꞏm / 14.5 lb ft)
012RW039
014RW163
012RW032

6A – 60 ENGINE MECHANICAL
VALVE STEM SEAL, VALVE SPRING AND ADJUSTER
REMOVAL
1. Disconnect battery ground cable.
2. Drain engine coolant.
3. Remove the air duct from between air cleaner and
turbocharger.
4. Remove intercooler assembly.
Refer to “Intercooler” in this manual.
5. Remove oil level gauge guide assembly.
6. Disconnect PCV hose.
7. Disconnect EGR vacuum hose.
8. Disconnect harness connectors around the cylinder
head such as the injector, CMP sensor, MAP
sensor, EGR sensor, EVRV, IAT sensor, A/C
compressor, TP stepping motor, TP sensor and fuel
temperature sensor etc.
9. Remove A/C compressor assembly.
10. Remove A/C compressor bracket.
11. Remove generator assembly and take out drivebelt.
12. Remove heat protector, remove exhaust valve
assembly.
13. Remove water cooling hose and lubrication pipe for
turbocharger.
14. Remove turbocharger assembly.
15. Remove hose between thermostat and radiator.
16. Remove noise insulator cover of cylinder head.
NOTE: Do not damage injector harness.
17. Remove high pressure oil pipe.
18. Remove timing belt cover.
19. Remove CMP sensor bracket.
20. Remove timing belt tensioner then remove timing
belt.
21. Remove camshaft pulley.
22. Remove front plate.
23. Remove engine coolant pipe between cylinder
head and water pump.
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011RW031
Legend
(1) Adjuster
(2) Tappet
(3) Split Collar
(4) Spring Seat Upper
(5) Valve Spring(6) Spring Seat Lower
(7) Valve Stem Seal
(8) Valve Guide
(9) Valve Seat
(10) Valve

ENGINE MECHANICAL 6A – 61
24. Remove fuel pipe between fuel pump and intake
manifold.
25. Remove fuel return pipe from rear of cylinder head.
26. Remove intake manifold assembly.
27. Disconnect glow plug harness and remove glow
plug.
28. Remove cylinder head cover.
29. Remove injector harness connector.
30. Disconnect harness connector from oil pressure
sensor and oil temperature sensor on the oil rail.
31. Remove injector harness assembly.
32. Remove injector clamp.
33. Remove injector is fixed bolts.
34. Remove injector assembly.
35. Remove oil rail.
36. Remove camshaft carrier assembly with camshaft.
37. Remove cylinder head assembly.
38. Disassemble valve spring according to the following
method.
1) Use valve spring compressor then remove split
collars.
2) Valve spring compressor: 5-8840-2441-0
NOTE: Put removed valve spring in order of cylinder
number.
39. Valve stem seal.
1) Use a screwdriver or pliers to remove valve
stem seal.
NOTE: Do not reuse removed valve stem seal.
INSPECTION AND REPAIR
Make the necessary adjustments, repairs and part
replacements if excessive wear or damage is
discovered during inspection.
Va l v e s p r i n g
CAUTION: Visually inspect the valve springs and
replace them if damage or abnormal wear is
evident.
1. Free height
1) Measure the free height of the springs. The
springs must be replaced if the height is below
the specified limit.
Standard: 45.85 mm (1.8051in)
Limit: 43.9 mm (1.7283 in)
2. Squareness
1) Measure the valve spring squareness with a
steel square.
2) Replace the valve springs if the measured value
exceeds the specified limit.
Limit: 1.6 mm (0.063 in)
014rw042
014rs004
014rs005

6A – 62 ENGINE MECHANICAL
3. Spring tension
1) Use a spring tester to compress the springs to
the installed height. Measure the compressed
spring tension.
2) Replace the springs if the measured tension is
below the specified limit.
Standard: 236.0 N (24 kg/53 lb)
Limit: 205.0 N (21 kg/46 lb)Va l v e G u i d e
CAUTION: Taking care not to damage the valve seat
contact surface, when removing carbon adhering to
the valve head.
Carefully inspect the valve stem for scratching or
abnormal wear. If these conditions are present, the
valve and the valve guide must be replaced as a set.
1. Valve Guide Clearance
1) Measure the valve stem diameter with a
micrometer.
If the valve stem diameter is less than the
specified limit, the valve and the valve guide
must be replaced as a set.
Diameter of Valve stem:Inlet
Standard: 6.959 – 6.977 mm (0.2740 – 0.2747 in)
Limit: 6.92 mm (0.2724 in)
Diameter of Valve stem:Exhaust
Standard: 6.952 – 6.97 mm (0.2737 – 0.2744 in)
Limit: 6.90 mm (0.2717 in)
2) Measure the inside diameter of the valve guide
with a micrometer.
3) Subtract the measured outer diameter of the
valve stem from the measured inner diameter of
the valve guide.
If the valve exceeds the specified limit, the valve
and the valve guide must be replaced as a set.
Inlet clearance
Standard: 0.023 – 0.053 mm (0.0009 – 0.0021 in)
Limit: 0.19 mm (0.0075 in)
Exhaust clearance
Standard: 0.03 – 0.063 mm (0.0012 – 0.0025 in)
Limit: 0.20 mm (0.0079 in)
014RS006
014RS007