1995 Opel Omega Sedan engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace screws and nuts.
2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace screws and nuts.
2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)	16.96 lbf⋅ft16.96 lbf⋅ft23 N⋅m
Replace screws and nuts.
2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt tensioner


All Opel gasoline straight-4 2.0 L X 20 XEV engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAuxiliary drive belt tensioner


All Opel gasoline V6 2.5 L X 25 XE engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All Opel gasoline V6 3.0 L X 30 XE engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreServo pump pulley


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreCarburetion

expand_moreHigh-pressure pump pulley

expand_moreInjection nozzle (injector)


All other modifications	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreCooling system


Coolant pump	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCoolant pump pulley


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws.
Second stage	30°30°30°
Third stage	30°30°30°

expand_moreCylinder head

expand_moreCamshaft bearing


2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCylinder head screws

expand_more2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 172 N⋅m at 2800 RPM engine (1994.3–1999.9)

Figure 1. Cylinder head, Cylinder head screws, 2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 172 N⋅m at 2800 RPM engine (1994.3–1999.9).


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 1.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)

Figure 2. Cylinder head, Cylinder head screws, 2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7).


First stage	59 lbf⋅ft59 lbf⋅ft80 N⋅m
Use new screws. See figure 2.
Second stage	loosen by 180°
Third stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Fourth stage	90–100°90–100°90–100°
Fifth stage	90–100°90–100°90–100°
Sixth stage	Warm-up run
25 min
Seventh stage	90–100°90–100°90–100°

expand_more2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)

Figure 3. Cylinder head, Cylinder head screws, 2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9).


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws. See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	15°15°15°

expand_more3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws. See figure 3.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	15°15°15°

expand_moreAll other modifications

Figure 4. Cylinder head, Cylinder head screws, All other modifications.


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 4.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	15°15°15°

expand_moreValve cover


2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

expand_more2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 175 N⋅m at 2600 RPM engine (1994.3–2000.12)


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws and nuts.
Second stage	30°30°30°

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	70°70°70°

expand_moreAll other modifications


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreCrankshaft central screws

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


First stage	73.76 lbf⋅ft73.76 lbf⋅ft100 N⋅m
Second stage	90°90°90°
Third stage	60°60°60°

expand_more2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)


First stage	184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m
Use new screw.
Second stage	45°45°45°
Third stage	15°15°15°

expand_more3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)


First stage	184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m
Use new screw.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	95.88 lbf⋅ft95.88 lbf⋅ft130 N⋅m
Use new screw.
Second stage	40–50°40–50°40–50°


Crankshaft pulley	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFlywheel

expand_more2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 172 N⋅m at 2800 RPM engine (1994.3–1999.9)


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_more2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 175 N⋅m at 2600 RPM engine (1994.3–2000.12)


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°


2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	82.61 lbf⋅ft82.61 lbf⋅ft112 N⋅m
2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	82.61 lbf⋅ft82.61 lbf⋅ft112 N⋅m
2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)	82.61 lbf⋅ft82.61 lbf⋅ft112 N⋅m

expand_moreAll other modifications


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace screws. Use screw-locking compound.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	50°50°50°

expand_more2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	15°15°15°

expand_more3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreVibration damper

expand_moreEngine control

expand_moreCamshaft drive belt deflection pulley

expand_moreAll Opel gasoline straight-4 2.0 L X 20 XEV engines


Inlet camshaft	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Outlet camshaft	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreCamshaft timing gear


2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 172 N⋅m at 2800 RPM engine (1994.3–1999.9)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 175 N⋅m at 2600 RPM engine (1994.3–2000.12)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


First stage	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Second stage	35°35°35°

expand_moreAll other modifications


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Replace screws.
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreChain tensioner

expand_moreAll other modifications


Cap	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Chain tensioner	11.8 lbf⋅ft11.8 lbf⋅ft16 N⋅m

expand_moreTension rail bearing screws

expand_moreTiming case cover

expand_moreToothed belt guard


All Opel gasoline straight-4 2.0 L 20 SE engines	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
All Opel gasoline straight-4 2.0 L X 20 SE engines	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
All Opel gasoline straight-4 2.0 L X 20 XEV engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


Toothed belt tensioning roller	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication

expand_moreOil drain plug

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1994.3–1999.9)


Torx screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
With hexagon-head screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 172 N⋅m at 2800 RPM engine (1994.3–1999.9)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 175 N⋅m at 2600 RPM engine (1994.3–2000.12)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


M12	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M16	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_more3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)


Torx screws	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
With hexagon-head screws	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreOil filter housing

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


Metal cap	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Plastic cap	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreOil sump

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1994.3–1999.9)


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Oil sump lower part	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Oil sump top part	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Clean the thread and use screw-locking compound.


2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 172 N⋅m at 2800 RPM engine (1994.3–1999.9)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
2.0 with gasoline straight-4 2.0 L 114 HP at 5400 RPM, 175 N⋅m at 2600 RPM engine (1994.3–2000.12)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.

expand_more2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)


M6	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Clean the thread and use screw-locking compound.

expand_more3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)

expand_moreOil sump top part

expand_moreAt the gearbox


M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m


On the engine block	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreOil sump lower part


First stage	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Replace screws and nuts.
Second stage	30°30°30°

expand_moreEngine management

expand_moreCamshaft sensor


All Opel gasoline straight-4 2.0 L X 20 XEV engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


Crankshaft sensor	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGlow plugs


All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreKnock sensor


All Opel gasoline straight-4 2.0 L 20 SE engines	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All Opel gasoline straight-4 2.0 L X 20 SE engines	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All Opel gasoline straight-4 2.0 L X 20 XEV engines	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreLambda sensor


All Opel gasoline V6 2.5 L X 25 XE engines	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use assembly paste

expand_moreExhaust system

expand_moreExhaust manifold


2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
Replace screws and nuts.
2.5 TD with diesel straight-6 2.5 L 129 HP at 4500 RPM, 250 N⋅m at 2200 RPM engine (1994.4–2003.7)	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
Replace screws and nuts.
2.5 TD with diesel straight-6 2.5 L 129 HP engine (1994.4–2003.7)	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m
Replace screws and nuts.
2.5 V6 with gasoline V6 2.5 L 168 HP at 6000 RPM, 227 N⋅m at 3200 RPM engine (1994.3–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws and nuts.
3.0 V6 with gasoline V6 3.0 L 208 HP engine (1994.4–2001.2)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws and nuts.
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.

expand_moreIgnition system


Spark plugs	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1995 Opel Omega Sedan 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.

Maintenance Items

Engine Fastener Tightening Specifications
Front Suspension Fastener Tightening Specifications
Rear Suspension Fastener Tightening Specifications
Transmission Fastener Tightening Specifications

Service Intervals

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 Sedan 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 1995 Opel Omega Sedan you're not only saving money, but also also improving your technical skills and learning something new.

1995 Opel Omega Sedan B Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

Opel Omega Sedan B model years

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