1998 OPEL FRONTERA lock

4D2–3 TRANSFER CASE (TOD)
6. Disconnect the wiring harness connector, transfer
control lever knob and shift lock cable and then
remove the front console.
7 . R e m o v e t h e s e l e c t o r l e v e r a s s e m b ly a n d p u t i t a s i d e .
8. Remove the transfer control lever.
9. Disconnect the breather hose.
10. Remove the left front exhaust pipe fixing bolts and
nuts, and put the exhaust pipe aside.
11. Remove the left seat belt tension rod and put the rear
proper shaft aside.
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12. Disconnect the transfer harness connector from the
top of the transfer case.
13. Disconnect the speed sensor harness connector.
14. Remove the fuel pipe clip fixing bolt on the transfer
case.
15. Support the transmission with a jack.
16. Remove the seven bolts from the transfer case.
17. Remove the transfer case assembly.
Installation
To install, follow the removal steps in the reverse order,
noting the following points:
1. Apply a thin coat of grease (Besco L2) or equivalent to
the input shaft spline.
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2. Mount the transfer case.

4D2–10
TRANSFER CASE (TOD)
6. Remove the offset lever set bolt on the right side.
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7. Remove the offset lever lock spring pin.
NOTE: When removing the spring pin, note the recess
position of the pin.
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8. Remove the offset lever.
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9. Remove the sixteen bolts and detach the transfer
cover assembly from the transfer case assembly.
NOTE: When removing the transfer cover assembly, be
careful not to damage the oil seal.
Reassembly
1. Apply liquid gasket (Loctite 598 or equivalent)
uniformly to the mating face that contacts the transfer
case.
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4D2–13 TRANSFER CASE (TOD)
2. Strike the speed gear and tone wheel with a rod or
other appropriate tool from the outside of the transfer
cover assembly, and remove the ball bearing and
speed gear and tone wheel.
NOTE: Be careful not to damage the speed gear teeth.
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3. Remove the stopper plate on the back with a
precision screwdriver or other appropriate tool
starting from the small lock of the plate.
NOTE: Be careful not to damage the stopper plate during
the work.
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4. Using a terminal pull-out tool or an equivalent tool,
push down the lock to unlatch the terminal for the coil
assembly, and pull the terminal out.
NOTE: Be careful not to damage other terminals.
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5. Remove the fixing nuts of the coil assembly from the
outside of the transfer cover assembly. Remove the
coil assembly from the transfer cover.
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4D2–18
TRANSFER CASE (TOD)
Sprocket and Mechanical Lock
Disassembled View
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Legend
(1) Strainer
(2) Hose
(3) Oil Pump Assembly
(4) Thrust Washer
(5) Mechanical Lock Hub
(6) Lock-up Sleeve(7) Lock-up Fork
(8) Chain
(9) Lower Driven Sprocket
(10) Front Tone Wheel
(11) Drive Sprocket
(12) Sprocket Spacer
Disassembly
1. Remove the sprocket spacer.
2. Remove the front tone wheel.

4D2–19 TRANSFER CASE (TOD)
3.Remove the drive sprocket, lower driven sprocket,
and chain together from the front and rear output
shafts.
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4. Remove the mechanical lock hub.
5. Remove the lock-up fork.
6. Remove the spring retainers from the connection
between the rail shaft and lock-up fork.
7. Remove the lock-up sleeve.
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8. Remove the thrust washer.
9. Remove the magnet from the strainer set position
together with the oil pump assembly.
10. Remove the strainer from the oil pump assembly.
11. Remove the hose from the oil pump assembly.

4D2–20
TRANSFER CASE (TOD)
Output Shafts and Shift Control Shaft
Disassembled View
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Legend
(1) Transfer Case Assembly
(2) Detent Spring
(3) Front Output Shaft
(4) Reduction Hub
(5) Output Shaft
(6) Reduction Fork Assembly
(7) Lock-up Shaft
(8) Spring Pin
(9) Reduction Fork(10) Cam Assembly
(11) Snap Ring
(12) Washer
(13) Cam
(14) Cam Pilot Block
(15) Shifter Shaft Assembly
(16) Shifter Lever Shaft
(17) Snap Ring
(18) Reduction Lever Assembly
(19) Snap Ring

4D2–21 TRANSFER CASE (TOD)
Disassembly
1. Remove the output shaft.
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2. Remove the detent spring.
3. Remove the cam pilot block bolts.
4. Remove the shifter shaft assembly and cam
assembly.
5. Remove the reduction fork assembly together with
reduction hub.
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6. Remove the spring pin that fixes the reduction fork to
the lock-up shaft.
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7. Remove the reduction fork.
8. Remove the lock-up shaft.
9. Using snap ring pliers, remove the snap ring from cam
pilot block.
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10. Remove the washer.
11. Remove the cam.
12. Remove the cam pilot block.

4D2–26
TRANSFER CASE (TOD)
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Inspection and Repair
When wear, damage, or any other defects are observed
during the inspection, the part or parts must be repaired or
replaced. Wash all the parts with clean solvent, and
check that old oil, metallic particles, dirt, or foreign
materials are completely removed. Blow the air into oil
holes and grooves to remove foreign materials or residual
detergent.
Chain
Check whether the face that contacts the sprocket is
free from excessive wear or damage. If defects are
observed, replace the part.
If the chain interference mark is found on the inside
w a l l o f t h e t r a n s f e r c o v e r o r t h e c h a i n i s s o s l a c k t h a t a
skipped engagement occurs between the chain and
sprocket, replace the chain.
Sprocket
Check whether the sprocket tooth surface is
excessively worn or damaged, and there is evidence
of burrs, chipping, wear, or damage on the gear
spline. Remove minor flaws or scratches with oil
stone. If excessive wear or damage is observed,
replace the part.
If excessive wear or damage is observed on the
sprocket inside sliding surface, replace the part.
Gear
Check whether the gear tooth surface is excessively
worn or damaged, and there is evidence of burrs,
chipping, wear, or damage on the gear spline.
Remove minor flaws or scratches with oil stone. If
excessive wear or damage is observed, replace the
part.
Thickness of Reduction Hub
Measure the thickness with a micrometer.
If the measurement exceeds the limit, replace the
reduction hub.
Standard : 3.05-3.30 mm (0.120-0.130 in)
Allowable limit : 2.5 mm (0.098 in)
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Lock-up Sleeve
Mount the mechanical lock hub, drive sprocket
assembly, and lock-up sleeve to the output shaft.
If the lock-up sleeve does not move smoothly, replace
the sleeve.
NOTE: Apply ATF to the area engaging the gear.
Thickness of Lock-up Sleeve
If the measurement exceeds the limit, replace the
lock-up sleeve.
Standard : 7.16-7.32 mm (0.282-0.288 in)
Allowable limit : 7.9 mm (0.311 in)
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