wheel bolts OPEL FRONTERA 1998 User Guide

4C–13 DRIVE SHAFT SYSTEM
9. Install lock washer and lock screw in the following
manner.
Turn the side with larger diameter of the tapered
bore to the vehicle outer side, then attach the
washer.
If the bolt holes in the lock plate are not aligned with
the corresponding holes in the nut, reverse the lock
plate.
If the bolt holes are still out of alignment, turn in the
nut just enough to obtain alignment.
Screw is to be fastened tightly so its head may
come lower than the surface of the washer.
411RS012
10. Apply adhesive (LOCTITE 515 or equivalent) to both
joining flange faces then install hub flange.
11. Install snap ring and shim.
Adjust the clearance between the free wheeling hub
body and the snap ring.
Clearance: 0 mm–0.3 mm (0 in–0.012 in)
Shims Available: 0.2 mm, 0.3 mm, 0.5 mm,
1.0 mm (0.008 in, 0.012 in, 0.020 in, 0.039 in)
411RW002
12. Install hub cap.
13. Tighten the bolts to the specified torque.
Torque: 59 Nꞏm (6.0 kgꞏm/43 lb ft)

4C–18
DRIVE SHAFT SYSTEM
17. Install oil seal by using installer 5–8840–2120–0 and
grip 5–8840–0007–0.
Apply grease (NLGI No.2 or equivalent) to the lip
portion.
411RW008
18. Install ABS sensor ring (if so equipped).
Tighten the bolts to the specified torque.
Torque:18Nꞏm (1.8kgꞏm/13lbft)
19. Install hub and disc assembly.
1. Apply grease in the hub.
2. Apply wheel bearing type grease NLGI No.2 or
equivalent to the outer and inner bearing.
Grease Amount
Hub: 35 g (1.23 oz)
Outer bearing: 10 g (0.35 oz)
Inner bearing: 15 g (0.53 oz)
20. Install hub nut.
1. Turn the place where there is a chamfer in the
tapped hole to the outer side, and attach the nut
by using wrench 5–8840–2117–0.
411RW005
Preload Adjustment
Tighten the hub nut to 29 Nꞏm (3.0 kgꞏm/22 lbꞏft),
then fully loosen the nut.
Tighten the hub nut to the value given below, using
a spring scale on the wheel pin.
Bearing Preload
New bearing and New oil seal:
20-25N (2-2.5 kg/4.4-5.5 lb)
Used bearing and New oil seal:
12-18N (1.2-1.8 kg/2.6-4.0 lb)
If the measured bearing preload is outside the
specifications, adjust it by loosening or tightening
the bearing nut.
411RS011

4C–19 DRIVE SHAFT SYSTEM
21. Install lock washer and lock screw in the following
manner.
Turn the side with larger diameter of the tapered
bore to the vehicle outer side, and attach the
washer.
If the bolt holes in the lock plate are not aligned with
the corresponding holes in the nut, reverse the lock
plate.
If the bolt holes are still out of alignment, trun in the
nut just enough to obtain alignment.
Screw is to be fastened tightly so its head may
come lower than the surface of the washer.
411RS012
22. Install body assembly.
Apply adhesive (LOCTITE 515 or equivalent) to
both joining faces.
Tighten the bolts to the specified torque.
Torque:59Nꞏm (6.0kgꞏm/43lbft)
23. Install snap ring and shim.
Adjust the clearance between the free wheeling hub
body and the snap ring.
Clearance:
0-0.3mm (0-0.012in)
Shims Available:
0.2mm, 0.3mm, 0.5mm, 1.0mm, (0.008in, 0.012in,
0.020in, 0.039in)
411RW002
24. Install cover assembly.
Align stopper nails (1) to grooves of body (2).
411RW019
25. Tighten the cover bolts to the specified torque.
Torque:12Nꞏm (1.2kgꞏm/104lbin)

4D2–15 TRANSFER CASE (TOD)
4. Apply a thin coat of grease to the seal ring of each
front and rear speed sensor, and mount the sensors
carefully.
5. Tighten the bolts to the specified torque.
Torque : 5 Nꞏm (0.5 kgꞏm/43 lb in)
NOTE: Pay attention not to mount the front (or rear)
sensor to the rear (or front) sensor position.
6. Install the ball bearing (1) for the front output shaft as
flat as shown in the figure.
261RW008
7. Mount the coil assembly and tighten the nuts to the
specified torque.
Torque : 10 Nꞏm (1.0 kgꞏm/87 lb in)
8. Connect the terminal in the central connector.
NOTE: Be careful not to damage other terminals.
9. Install speed gear and tone wheel.
10. Mount the ball bearing (2) as flat as shown in the
figure.
261RW009–1
11. Using snap ring pliers, install the snap ring to the
transfer cover assembly.NOTE: Securely install the snap ring to the groove of the
transfer cover assembly.

5B–4ANTI–LOCK BRAKE SYSTEM
Front Wheel Speed Sensor
Front Wheel Speed Sensor and Associated Parts
350RW012
Legend
(1) Speed Sensor Connector
(2) Sensor Cable Fixing Bolt (Upper side)(3) Sensor Cable Fixing Bolt (Lower side)
(4) Sensor Cable Fixing Bolt (Sensor side)
(5) Speed Sensor
Removal
1. Remove speed sensor connector.
2. Remove sensor cable fixing bolt (Upper side).
3. Remove sensor cable fixing bolt (Lower side).
4. Remove the speed sensor cable fixing bolts (1) and
caliper fixing bolt (2) from caliper side speed sensor
cable bracket (3).
350RW010
5. Remove speed sensor.

6A–3
ENGINE MECHANICAL
General Description
Engine Cleanliness And Care
An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousandths of a
millimeter (ten thousandths of an inch). Accordingly,
when any internal engine parts are serviced, care and
cleanliness are important. Throughout this section, it
should be understood that proper cleaning and protection
of machined surfaces and friction areas is part of the
repair procedure. This is considered standard shop
practice even if not specifically stated.
A liberal coating of engine oil should be applied to all
friction areas during assembly to protect and lubricate
the surfaces on initial operation.
Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.
At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.
Battery cables should be disconnected before any
major work is performed on the engine. Failure to
disconnect cables may result in damage to wire
harness or other electrical parts.
The six cylinders of this engine are identified by
numbers; Right side cylinders 1, 3 and 5, Left side
cylinders 2, 4 and 6, as counted from crankshaft
pulley side to flywheel side.
General Information on Engine Service
The following information on engine service should be
noted carefully, as it is important in preventing damage
and contributing to reliable engine performance:
When raising or supporting the engine for any reason,
do not use a jack under the oil pan. Due to the small
clearance between the oil pan and the oil pump
strainer, jacking against the oil pan may cause
damage to the oil pick–up unit.
The 12–volt electrical system is capable of damaging
circuits. When performing any work where electrical
terminals could possibly be grounded, the ground
cable of the battery should be disconnected at the
battery.
Any time the intake air duct or air cleaner is removed,
the intake opening should be covered. This will
protect against accidental entrance of foreign
material into the cylinder which could cause extensive
damage when the engine is started.
Cylinder Block
The cylinder block is made of aluminum die–cast casting
for 75
V–type six cylinders. It has a rear plate integrated
structure and employs a deep skint. The cylinder liner is
cast and the liner inner diameter and crankshaft journal
diameter are classified into grades. The crankshaft is
supported by four bearings of which width of No.3 bearing
on the body side is different in order to support the thrust
bearing. The bearing cap is made of nodular cast iron and
each bearing cap uses four bolts and two side bolts.
Cylinder Head
The cylinder head, made of aluminum alloy casting
employs a pent–roof type combustion chamber with a
spark plug in the center. The intake and exhaust valves
are placed in V–type design. The ports are cross–flow
type.
Va l v e Tr a i n
Intake and exhaust camshaft on the both side of banks
are driven through an camshaft drive gear by timing belt.
The valves are operated by the camshaft and the valve
clearance is adjusted to select suitable thickness shim.
Intake Manifold
The intake manifold system is composed of the aluminum
cast common chamber and intake manifold attached with
six fuel injectors.
Exhaust Manifold
The exhaust manifold is made of nodular cast iron.
Pistons and Connecting Rods
Aluminum pistons are used after selecting the grade that
meets the cylinder bore diameter. Each piston has two
compression rings and one oil ring. The piston pin is made
of chromium steel is offset 1mm toward the thrust side,
and the thrust pressure of piston to the cylinder wall varies
gradually as the piston travels. The connecting rods are
made of forged steel. The connecting rod bearings are
graded for correct seze selection.
Crankshaft and Bearings
The crankshaft is made of Ductile cast–iron. Pins and
journals are graded for correct size selection for their
bearing.
Engine Lubrication
The oil discharged by a trochoid–type oil pump driven by
the crankshaft is fed through full–flow oil filter and to the oil
gallery provided under the crankshaft bearing cap. The oil
is then led to the crankshaft journals and cylinder head.
The crank pins are lubricated with oil from crankshaft
journals through oil holes. Also, an oil jet is fed to each
cylinder from crankshaft juornals on the connecting rod
for piston cleaning. The oil pan flange is dealed with liquid
packing only; do not deform or damage the flange surface
during removal or installation.

6A–43
ENGINE MECHANICAL
6. Remove oil pump assembly.
Refer to removal procedure for Oil Pump in this
manual.
7. Remove cylinder body side bolts.
8. Remove oil gallery.
9. Remove flywheel.
10. Remove rear oil seal retainer.
Refer to removal procedure for Rear Oil Seal in this
manual.
11. Remove connecting rod caps.
12. Remove crankshaft main bearing caps.
13. Remove crankshaft and main bearings.
Installation
1. Install crankshaft and main bearings.
Install main bearing in the cylinder block and main
bearing cap respectively.
Apply new engine oil to upper and lower main
bearings.
NOTE:
Do not apply engine oil to the bearing back faces.
Make sure that main bearings are in correct position.
Install crankshaft with care.
Apply engine oil to the thrust washer.
Install thrust washer on No.3 journal.
Oil grooves in thrust washer must face the
crankshaft.
015RS012
015RS013
2. Install crankshaft main bearing caps.
Apply engine oil to the thread and seating surface of
each bearing cap fixing bolt.
NOTE:
Do not apply engine oil to the bearing back faces.
Install bearing caps in the order of numbers, starting
with cylinder block front side.
Tighten main bearing fixing bolts to the specified
torque.
Torque : 39 Nꞏm (4.0 Kgꞏm/29 lb ft)
After tightening the bolts, make sure that the
crankshaft rotates smoothly.
3. Install connecting rod caps.
The cap number must be same as connecting rod
number.
Apply engine oil to the thread and seating surface of
each nut.
Tighten nuts to the specified torque.
Torque : 54 Nꞏm (5.5 Kgꞏm/40 lb ft)
After tightening the nuts, make sure that the
crankshaft rotates smoothly.
4. Install rear oil seal retainer.
Remove oil on cylinder block and retainer fitting
surface.
Apply sealant (TB1207B or equivalent) to retainer
fitting surface as shown in illustration.

6A–44
ENGINE MECHANICAL
The oil seal retainer must be installed within 5
minutes after sealant application before the sealant
hardens.
015RW002
Legend
(1) Around Bolt Holes
(2) Around Dowel Pin
Apply engine oil to oil seal lip and align a dowel pin
hole in the cylinder block with that in the retainer.
Tighten retainer fixing bolts to the specified torque.
Torque : 18 Nꞏm (1.8 Kgꞏm/13 lb ft)
015RW001
5. Install flywheel.
Clean tapped holes in the crankshaft.
Remove oil on crankshaft and flywheel fitting
surface.
NOTE:
Do not reuse the bolts.
Do not apply oil or thread lock to the bolts.
Tighten fixing bolts to the specified torque.
Torque : 54 Nꞏm (5.5 Kgꞏm/40 lb ft)
015RS018
6. Install oil gallery.
Clean contact surface of oil gallery and main
bearing cap.
Apply engine oil to oil gallery fixing bolts and tighten
the bolts in two steps, in the order shown in
illustration.
To r q u e :
1st step : 29 Nꞏm (3.0 Kgꞏm/21 lb ft)
2nd step : 55
–65
7. Install cylinder body side bolts and tighten bolts in
order to the specified torque.
Torque : 39 Nꞏm (4.0 Kgꞏm/29 lb ft)
NOTE: Do not apply the oil to the bolts.
012RS007
8. Install oil pump assembly.
Remove oil on cylinder block and oil pump mounting
surface.

6A–47
ENGINE MECHANICAL
Rear Oil Seal
Removal
1. Remove transmission assembly.
Refer to removal procedure for Transmission
section in this manual.
2. Remove flywheel.
3. Remove rear oil seal using a seal remover.
NOTE: Take care not to damage the crankshaft or oil seal
retainer when removing oil seal.
Installation
1. Apply engine oil to oil seal lip and install oil seal using
5–8840–2286–0.
015RS017
2. Install flywheel.
Clean tapped holes in the crankshaft.
Remove oil on the crankshaft and flywheel
mounting surface.
Tighten fixing bolts to the specified torque.
NOTE: Do not reuse the bolts and do not apply oil or
thread lock to the bolts.
Torque : 54 Nꞏm (5.5 Kgꞏm/40 lb ft)
015RS018
3. Install transmission.
See Transmission section in this manual.
CAUTION: W h e n a s s e m b l i n g t h e e n g i n e a n d
transmission, confirm that dowels have been
mounted in the specified positions at the engine
side. Take care that dowel positions are different
between the manual transmission and the automatic
transmission.
Otherwise, the transmission may be damaged.
012RS009

6A–48
ENGINE MECHANICAL
Engine Assembly
Removal
035RW027
1. Disconnect battery ground and positive cable.
2. Remove battery.
3. Make alignment mark on the engine hood and hinges
before removal in order to return the hood to original
position exactly.
4. Remove engine hood.
5. Drain radiator coolant.
6. Disconnect accelerator cable and automatic cruise
control cable from throttle valve on common
chamber.
7. Disconnect air duct with air cleaner cover.
8. Remove air cleaner assembly.
9. Disconnect canister vacuum hose.
10. Disconnect vacuum booster hose.
11. Disconnect three engine harness connectors.
12. Disconnect harness connector to transmission (left
front side of engine compartment), disconnect shift
on the fly harness connector from front side of front
axle and remove transmission harness bracket from
engine left side.
13. Disconnect ground cable between engine and frame.
14. Disconnect bonding cable connector on the back of
right dash panel.
15. Disconnect bonding cable terminal on the left bank.
16. Disconnect starter harness connector from starter.
17. Disconnect generator harness connector from
generator.
18. Disconnect coolant reserve tank hose from radiator.
19. Remove radiator upper and lower hoses.
20. Remove upper fan shroud.
21. Remove cooling fan assembly four fixing nuts, then
the cooling fan assembly.
22. Move drive belt tensioner to loose side using wrench
then remove drive belt.23. Remove power steering pump fixing bolts, then
power steering pump. Place the power steering pump
along with piping on the body side.
24. Remove air conditioning compressor fixing bolts from
bracket and place the compressor along with piping
on the body side.
25. Remove O
2 sensor harness connectors from exhaust
front pipe.
26. Remove three exhaust pipe fixing nuts from each
bank.
27. Remove two exhaust pipe fixing nuts from each
exhaust pipe, then move exhaust pipe to rear side of
vehicle.
28. Remove flywheel dust covers.
29. Disconnect two heater hoses from engine.
30. Disconnect fuel hoses from right side of transmission.
CAUTION: Plug fuel pipes on engine side and fuel
hoses from fuel tank.
31. Remove transmission assembly. Refer to
Transmission section in this manual.
32. Support the engine by engine hoist.
33. Remove two left side engine mount fixing bolts from
engine mount on chassis side.
34. Remove two right side engine mount fixing bolts from
engine mount on chassis side.
35. Remove engine assembly.
Installation
CAUTION: W h e n a s s e m b l i n g t h e e n g i n e a n d
transmission, confirm that dowels have been
mounted in the specified positions at the engine
side. Take care that dowel positions are different
between the manual transmission and the automatic
transmission.