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Condition Value
expand_moreAir intake system
expand_moreIntake manifold
Opel diesel straight-6 2.5 L 25 DT 129 HP 16.96 lbf⋅ft
Replace screws and nuts.
Opel diesel straight-6 2.5 L X 25 TD 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 16.96 lbf⋅ft
Replace screws and nuts.
Opel diesel straight-6 2.5 L X 25 DT 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 16.96 lbf⋅ft
Replace screws and nuts.
M6 7.38 lbf⋅ft
M7 11.06 lbf⋅ft
Opel gasoline V6 2.6 L Y 26 SE 177 HP 14.75 lbf⋅ft
Opel gasoline V6 3.0 L X 30 XE 208 HP 14.75 lbf⋅ft
Opel gasoline V6 3.2 L Y 32 SE 215 HP at 6000 RPM, 290 N⋅m at 3400 RPM 14.75 lbf⋅ft
All other modifications 16.23 lbf⋅ft
Replace screws and nuts.
expand_moreAuxiliary assemblies
expand_moreAuxiliary drive belt tensioner
All Opel gasoline straight-4 2.2 L Y 22 XE engines 18.44 lbf⋅ft
All Opel gasoline straight-4 2.2 L Z 22 XE engines 18.44 lbf⋅ft
All other modifications 25.81 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
All Opel gasoline V6 3.0 L X 30 XE engines 25.81 lbf⋅ft
All Opel gasoline V6 2.6 L Y 26 SE engines 25.81 lbf⋅ft
All Opel gasoline V6 3.2 L Y 32 SE engines 25.81 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreServo pump pulley
First stage 14.75 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
expand_moreCarburetion
expand_moreHigh-pressure pump pulley
2.5 DTI with diesel straight-6 2.5 L 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM engine (2001.9–2003.7) 47.94 lbf⋅ft
expand_moreInjection nozzle (injector)
All Opel diesel straight-6 2.5 L Y 25 DT engines 6.64 lbf⋅ft
All other modifications 44.25 lbf⋅ft
expand_moreCooling system
Coolant pump 18.44 lbf⋅ft
expand_moreCoolant pump pulley
First stage 5.9 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 30°
expand_moreCylinder head
expand_moreCamshaft bearing
Opel diesel straight-4 2.2 L Y 22 DTH 118 HP 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L 25 DT 129 HP 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L X 25 TD 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L X 25 DT 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L Y 25 DT 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM 7.38 lbf⋅ft
All other modifications 5.9 lbf⋅ft
expand_moreCylinder head screws
expand_moreScrews 1-10
Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 2.2 L Y 22 DTH 118 HP, Screws 1-10.
Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 2.2 L Y 22 DTH 118 HP, Screws 1-10.
First stage 18.44 lbf⋅ft
Use new screws. See figure 1.
Second stage 65°
Third stage 65°
Fourth stage 65°
Fifth stage 65°
Sixth stage 15°
expand_moreScrews 11, 12, 13, and 14
Seventh stage 14.75 lbf⋅ft
Eighth stage 30°
Ninth stage 5°
Figure 2. Cylinder head, Cylinder head screws, Opel diesel straight-6 2.5 L 25 DT 129 HP.
Figure 2. Cylinder head, Cylinder head screws, Opel diesel straight-6 2.5 L 25 DT 129 HP.
First stage 59 lbf⋅ft
Use new screws. See figure 2.
Second stage loosen by 180°
Third stage 36.88 lbf⋅ft
Fourth stage 90100°
Fifth stage 90100°
Sixth stage Warm-up run
25 min
Seventh stage 90100°
First stage 59 lbf⋅ft
Use new screws See figure 2.
Second stage 180° detach
Third stage 36.88 lbf⋅ft
Fourth stage 90°
Fifth stage 90°
Figure 3. Cylinder head, Cylinder head screws, Opel gasoline V6 3.0 L X 30 XE 208 HP.
Figure 3. Cylinder head, Cylinder head screws, Opel gasoline V6 3.0 L X 30 XE 208 HP.
First stage 18.44 lbf⋅ft
Use new screws. See figure 3.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 15°
First stage 18.44 lbf⋅ft
Replace screws.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 15°
expand_moreAll other modifications
Figure 4. Cylinder head, Cylinder head screws, All other modifications.
Figure 4. Cylinder head, Cylinder head screws, All other modifications.
First stage 18.44 lbf⋅ft
Use new screws See figure 4.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 15°
expand_moreValve cover
Opel diesel straight-6 2.5 L 25 DT 129 HP 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L X 25 DT 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L X 25 TD 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 11.06 lbf⋅ft
Opel diesel straight-6 2.5 L Y 25 DT 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM 7.38 lbf⋅ft
All other modifications 5.9 lbf⋅ft
expand_moreEngine block
expand_moreConnecting rod bearing
First stage 14.75 lbf⋅ft
Second stage 70°
First stage 14.75 lbf⋅ft
Replace screws and nuts.
Second stage 60°
expand_moreAll other modifications
First stage 25.81 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
expand_moreCrankshaft central screws
First stage 110.63 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
First stage 73.76 lbf⋅ft
Second stage 90°
Third stage 60°
First stage 184.39 lbf⋅ft
Use new screw.
Second stage 45°
Third stage 15°
First stage 184.39 lbf⋅ft
Use new screw.
Second stage 45°
Third stage 15°
First stage 184.39 lbf⋅ft
Use new screw.
Second stage 45°
Third stage 15°
expand_moreAll other modifications
First stage 95.88 lbf⋅ft
Use new screw.
Second stage 4050°
Crankshaft pulley 14.75 lbf⋅ft
expand_moreFlywheel
First stage 29.5 lbf⋅ft
Retap thread in holes and use new screws.
Second stage 30°
Third stage 15°
First stage 33.19 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
Opel diesel straight-6 2.5 L 25 DT 129 HP 82.61 lbf⋅ft
Opel diesel straight-6 2.5 L X 25 DT 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 82.61 lbf⋅ft
Opel diesel straight-6 2.5 L X 25 TD 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 82.61 lbf⋅ft
First stage 47.94 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
Opel diesel straight-6 2.5 L Y 25 DT 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM 77.44 lbf⋅ft
Replace screws and nuts.
expand_moreAll other modifications
First stage 47.94 lbf⋅ft
Replace screws. Use screw-locking compound.
Second stage 30°
Third stage 15°
expand_moreMain bearing
First stage 66.38 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 15°
First stage 18.44 lbf⋅ft
Second stage 50°
First stage 18.44 lbf⋅ft
Replace screws and nuts.
Second stage 50°
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 15°
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 15°
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 15°
expand_moreAll other modifications
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
expand_moreVibration damper
expand_more2.5 DTI with diesel straight-6 2.5 L 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM engine (2001.9–2003.7)
First stage 29.5 lbf⋅ft
Replace bolts.
Second stage 60°
Third stage 60°
expand_moreEngine control
expand_moreCamshaft drive belt deflection pulley
Inlet camshaft 18.44 lbf⋅ft
Outlet camshaft 18.44 lbf⋅ft
All other modifications 29.5 lbf⋅ft
expand_moreCamshaft timing gear
First stage 66.38 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 30°
First stage 14.75 lbf⋅ft
Second stage 35°
First stage 14.75 lbf⋅ft
Replace screws and nuts.
Second stage 35°
expand_moreAll other modifications
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
expand_moreChain tensioner
Opel diesel straight-4 2.2 L Y 22 DTH 118 HP 6.64 lbf⋅ft
expand_moreAll other modifications
Cap 22.13 lbf⋅ft
Chain tensioner 11.8 lbf⋅ft
expand_moreTension rail bearing screws
2.5 DTI with diesel straight-6 2.5 L 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM engine (2001.9–2003.7) 14.75 lbf⋅ft
Replace the bolt
expand_moreTiming case cover
2.5 DTI with diesel straight-6 2.5 L 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM engine (2001.9–2003.7) 16.23 lbf⋅ft
expand_moreToothed belt guard
All Opel gasoline straight-4 2.2 L Y 22 XE engines 4.43 lbf⋅ft
All Opel gasoline straight-4 2.2 L Z 22 XE engines 4.43 lbf⋅ft
All other modifications 5.9 lbf⋅ft
Toothed belt tensioning roller 14.75 lbf⋅ft
expand_moreEngine lubrication
expand_moreOil drain plug
Opel diesel straight-4 2.2 L Y 22 DTH 118 HP 7.38 lbf⋅ft
M12 18.44 lbf⋅ft
M16 33.19 lbf⋅ft
Torx screws 7.38 lbf⋅ft
With hexagon-head screws 33.19 lbf⋅ft
Opel diesel straight-6 2.5 L Y 25 DT 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM 7.38 lbf⋅ft
Torx screws 7.38 lbf⋅ft
With hexagon-head screws 40.57 lbf⋅ft
Torx screws 7.38 lbf⋅ft
With hexagon-head screws 40.57 lbf⋅ft
Torx screws 7.38 lbf⋅ft
With hexagon-head screws 40.57 lbf⋅ft
expand_moreOil filter housing
Metal cap 22.13 lbf⋅ft
Plastic cap 18.44 lbf⋅ft
Opel gasoline straight-4 2.2 L Z 22 XE 142 HP 11.06 lbf⋅ft
Opel gasoline straight-4 2.2 L Y 22 XE 142 HP at 5400 RPM, 205 N⋅m at 4000 RPM 11.06 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreOil sump
Oil sump lower part 5.9 lbf⋅ft
Oil sump top part 14.75 lbf⋅ft
M6 7.38 lbf⋅ft
M8 14.75 lbf⋅ft
Opel gasoline straight-4 2.2 L Z 22 XE 142 HP 5.9 lbf⋅ft
Clean the thread and use screw-locking compound.
Opel gasoline straight-4 2.2 L Y 22 XE 142 HP at 5400 RPM, 205 N⋅m at 4000 RPM 5.9 lbf⋅ft
Clean the thread and use screw-locking compound.
M6 7.38 lbf⋅ft
M8 16.23 lbf⋅ft
expand_moreOil sump top part
expand_moreAt the gearbox
M8 14.75 lbf⋅ft
M10 29.5 lbf⋅ft
On the engine block 11.06 lbf⋅ft
expand_moreOil sump lower part
First stage 5.9 lbf⋅ft
Replace screws and nuts.
Second stage 30°
expand_moreOil sump top part
expand_moreAt the gearbox
M8 14.75 lbf⋅ft
M10 29.5 lbf⋅ft
On the engine block 11.06 lbf⋅ft
expand_moreOil sump lower part
First stage 5.9 lbf⋅ft
Replace screws and nuts.
Second stage 30°
expand_moreOil sump top part
expand_moreAt the gearbox
M8 14.75 lbf⋅ft
M10 29.5 lbf⋅ft
On the engine block 11.06 lbf⋅ft
expand_moreOil sump lower part
First stage 5.9 lbf⋅ft
Replace screws and nuts.
Second stage 30°
expand_moreEngine management
expand_moreCamshaft sensor
All Opel gasoline straight-4 2.2 L Y 22 XE engines 4.43 lbf⋅ft
All Opel gasoline straight-4 2.2 L Z 22 XE engines 4.43 lbf⋅ft
All other modifications 5.9 lbf⋅ft
Crankshaft sensor 5.9 lbf⋅ft
expand_moreGlow plugs
Opel diesel straight-4 2.2 L Y 22 DTH 118 HP 7.38 lbf⋅ft
Opel diesel straight-6 2.5 L Y 25 DT 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM 13.28 lbf⋅ft
All other modifications 16.23 lbf⋅ft
expand_moreKnock sensor
All other modifications 14.75 lbf⋅ft
expand_moreLambda sensor
All other modifications 22.13 lbf⋅ft
Use assembly paste
expand_moreExhaust system
expand_moreExhaust manifold
Opel diesel straight-6 2.5 L 25 DT 129 HP 17.7 lbf⋅ft
Replace screws and nuts.
Opel diesel straight-6 2.5 L X 25 TD 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 17.7 lbf⋅ft
Replace screws and nuts.
Opel diesel straight-6 2.5 L X 25 DT 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM 17.7 lbf⋅ft
Replace screws and nuts.
Opel diesel straight-6 2.5 L Y 25 DT 148 HP at 4000 RPM, 300 N⋅m at 1750 RPM 16.96 lbf⋅ft
Replace screws and nuts.
Opel gasoline V6 2.6 L Y 26 SE 177 HP 14.75 lbf⋅ft
Replace screws and nuts.
Opel gasoline V6 3.0 L X 30 XE 208 HP 14.75 lbf⋅ft
Replace screws and nuts.
Opel gasoline V6 3.2 L Y 32 SE 215 HP at 6000 RPM, 290 N⋅m at 3400 RPM 14.75 lbf⋅ft
Replace screws and nuts.
All other modifications 16.23 lbf⋅ft
Replace screws and nuts.
expand_moreIgnition system
Spark plugs 18.44 lbf⋅ft

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2001 Opel Omega Wagon user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Opel warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Opel Omega Wagon service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2001 Opel Omega Wagon you're not only saving money, but also also improving your technical skills and learning something new.

Opel Omega Wagon B2 model years

Units:
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