1999 Vauxhall Omega Sedan First generation (MK1) Engine Fastener Tightening Specifications
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Condition | Value |
---|
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 16.96 lbf⋅ft |
Replace screws and nuts. | |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 16.96 lbf⋅ft |
Replace screws and nuts. | |
All Vauxhall gasoline V6 2.5 L X 25 XE engines | 14.75 lbf⋅ft |
All Vauxhall gasoline V6 3.0 L X 30 XE engines | 14.75 lbf⋅ft |
All other modifications | 16.23 lbf⋅ft |
Replace screws and nuts. |
All Vauxhall gasoline straight-4 2.0 L X 20 XEV engines | 18.44 lbf⋅ft |
All Vauxhall gasoline straight-4 2.2 L Y 22 XE engines | 18.44 lbf⋅ft |
All Vauxhall gasoline straight-4 2.2 L Z 22 XE engines | 18.44 lbf⋅ft |
All other modifications | 25.81 lbf⋅ft |
All Vauxhall gasoline V6 2.5 L X 25 XE engines | 25.81 lbf⋅ft |
All Vauxhall gasoline V6 3.0 L X 30 XE engines | 25.81 lbf⋅ft |
All other modifications | 18.44 lbf⋅ft |
First stage | 14.75 lbf⋅ft |
Replace screws. | |
Second stage | 30° |
Third stage | 15° |
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 44.25 lbf⋅ft |
First stage | hand-screwed |
Second stage | 360° |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 44.25 lbf⋅ft |
Coolant pump | 18.44 lbf⋅ft |
First stage | 5.9 lbf⋅ft |
Replace screws. | |
Second stage | 30° |
Third stage | 30° |
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 11.06 lbf⋅ft |
All Vauxhall diesel straight-4 2.0 L X 20 DTH engines | 11.06 lbf⋅ft |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 11.06 lbf⋅ft |
All other modifications | 5.9 lbf⋅ft |
First stage | 59 lbf⋅ft |
Replace screws. See figure 1. | |
Second stage | 180° detach |
Third stage | 36.88 lbf⋅ft |
Fourth stage | 90–100° |
Fifth stage | 90–100° |
Sixth stage | Warm-up run |
Seventh stage | 90–100° |
First stage | 18.44 lbf⋅ft |
Replace screws. See figure 2. | |
Second stage | 65° |
Third stage | 65° |
Fourth stage | 65° |
Fifth stage | 65° |
Sixth stage | 15° |
Seventh stage | 14.75 lbf⋅ft |
Replace screws. | |
Eighth stage | 30° |
Ninth stage | 5° |
First stage | 18.44 lbf⋅ft |
Replace screws. See figure 3. | |
Second stage | 90° |
Third stage | 90° |
Fourth stage | 90° |
First stage | 18.44 lbf⋅ft |
Replace screws. See figure 3. | |
Second stage | 90° |
Third stage | 90° |
Fourth stage | 90° |
Fifth stage | 15° |
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 11.06 lbf⋅ft |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 11.06 lbf⋅ft |
All other modifications | 5.9 lbf⋅ft |
First stage | 14.75 lbf⋅ft |
Replace screws. | |
Second stage | 70° |
First stage | 25.81 lbf⋅ft |
Replace screws. | |
Second stage | 45° |
Third stage | 15° |
First stage | 73.76 lbf⋅ft |
Replace screws. | |
Second stage | 90° |
Third stage | 60° |
First stage | 110.63 lbf⋅ft |
Replace screws. | |
Second stage | 45° |
Third stage | 15° |
First stage | 184.39 lbf⋅ft |
Replace screws. | |
Second stage | 45° |
Third stage | 15° |
First stage | 95.88 lbf⋅ft |
Replace screws. | |
Second stage | 40–50° |
Crankshaft pulley | 14.75 lbf⋅ft |
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 82.61 lbf⋅ft |
First stage | 33.19 lbf⋅ft |
Replace screws. | |
Second stage | 30° |
Third stage | 15° |
First stage | 44.25 lbf⋅ft |
Second stage | 30° |
Third stage | 15° |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 82.61 lbf⋅ft |
First stage | 47.94 lbf⋅ft |
Replace screws. Use screw-locking compound. | |
Second stage | 30° |
Third stage | 15° |
First stage | 18.44 lbf⋅ft |
Replace screws. | |
Second stage | 50° |
First stage | 66.38 lbf⋅ft |
Replace screws. | |
Second stage | 60° |
Third stage | 15° |
First stage | 36.88 lbf⋅ft |
Replace screws. | |
Second stage | 60° |
Third stage | 15° |
First stage | 36.88 lbf⋅ft |
Replace screws. | |
Second stage | 45° |
Third stage | 15° |
Inlet camshaft | 18.44 lbf⋅ft |
Outlet camshaft | 18.44 lbf⋅ft |
Inlet camshaft | 18.44 lbf⋅ft |
Outlet camshaft | 18.44 lbf⋅ft |
All other modifications | 29.5 lbf⋅ft |
First stage | 14.75 lbf⋅ft |
Second stage | 35° |
First stage | 66.38 lbf⋅ft |
Replace screws. | |
Second stage | 60° |
Third stage | 30° |
All Vauxhall gasoline straight-4 2.0 L X 20 SE engines | 33.19 lbf⋅ft |
First stage | 36.88 lbf⋅ft |
Replace screws. | |
Second stage | 60° |
Third stage | 15° |
Cap | 44.25 lbf⋅ft |
Cap | 22.13 lbf⋅ft |
Chain tensioner | 11.8 lbf⋅ft |
All Vauxhall gasoline straight-4 2.0 L X 20 SE engines | 2.95 lbf⋅ft |
All Vauxhall gasoline straight-4 2.0 L X 20 XEV engines | 4.43 lbf⋅ft |
All Vauxhall gasoline straight-4 2.2 L Y 22 XE engines | 4.43 lbf⋅ft |
All Vauxhall 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 |
M12 | 18.44 lbf⋅ft |
M16 | 33.19 lbf⋅ft |
All Vauxhall diesel straight-4 2.0 L X 20 DTH engines | 7.38 lbf⋅ft |
All Vauxhall gasoline straight-4 2.0 L X 20 SE engines | 33.19 lbf⋅ft |
Torx screws | 7.38 lbf⋅ft |
With hexagon-head screws | 33.19 lbf⋅ft |
All Vauxhall gasoline V6 2.5 L X 25 XE engines | 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 | 33.19 lbf⋅ft |
Metal cap | 22.13 lbf⋅ft |
Plastic cap | 18.44 lbf⋅ft |
All Vauxhall diesel straight-4 2.0 L X 20 DTH engines | 18.44 lbf⋅ft |
All Vauxhall gasoline V6 3.0 L X 30 XE engines | 18.44 lbf⋅ft |
All other modifications | 11.06 lbf⋅ft |
M6 | 7.38 lbf⋅ft |
M8 | 14.75 lbf⋅ft |
Oil sump lower part | 5.9 lbf⋅ft |
Oil sump top part | 14.75 lbf⋅ft |
All Vauxhall gasoline straight-4 2.0 L X 20 SE engines | 7.38 lbf⋅ft |
Clean the thread and use screw-locking compound. |
At the gearbox | 29.5 lbf⋅ft |
Oil sump lower part | 14.75 lbf⋅ft |
Oil sump top part | 14.75 lbf⋅ft |
Clean the thread and use screw-locking compound. |
All Vauxhall gasoline V6 2.5 L X 25 XE engines | 11.06 lbf⋅ft |
Clean the thread and use screw-locking compound. |
M8 | 14.75 lbf⋅ft |
M10 | 29.5 lbf⋅ft |
On the engine block | 11.06 lbf⋅ft |
First stage | 5.9 lbf⋅ft |
Replace screws and nuts. | |
Second stage | 30° |
All Vauxhall gasoline straight-4 2.2 L Y 22 XE engines | 5.9 lbf⋅ft |
Clean the thread and use screw-locking compound. | |
All Vauxhall gasoline straight-4 2.2 L Z 22 XE engines | 5.9 lbf⋅ft |
Clean the thread and use screw-locking compound. |
All Vauxhall gasoline straight-4 2.0 L X 20 XEV engines | 4.43 lbf⋅ft |
All Vauxhall gasoline straight-4 2.2 L Y 22 XE engines | 4.43 lbf⋅ft |
All Vauxhall 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 |
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 16.23 lbf⋅ft |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 16.23 lbf⋅ft |
All other modifications | 7.38 lbf⋅ft |
All Vauxhall gasoline straight-4 2.0 L X 20 SE engines | 9.59 lbf⋅ft |
All Vauxhall gasoline straight-4 2.0 L X 20 XEV engines | 9.59 lbf⋅ft |
All other modifications | 14.75 lbf⋅ft |
All Vauxhall gasoline V6 2.5 L X 25 XE engines | 40.57 lbf⋅ft |
All other modifications | 22.13 lbf⋅ft |
Use assembly paste |
All Vauxhall diesel straight-6 2.5 L 25 DT engines | 17.7 lbf⋅ft |
Replace screws and nuts. | |
All Vauxhall diesel straight-6 2.5 L X 25 DT engines | 17.7 lbf⋅ft |
Replace screws and nuts. | |
All Vauxhall gasoline V6 2.5 L X 25 XE engines | 14.75 lbf⋅ft |
Replace screws and nuts. | |
All Vauxhall gasoline V6 3.0 L X 30 XE engines | 14.75 lbf⋅ft |
Replace screws and nuts. | |
All other modifications | 16.23 lbf⋅ft |
Replace screws and nuts. |
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 1999 Vauxhall 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 Vauxhall warranty policy for your region. In some regions DIY service may invalidate your warranty.
Table of Contents
- Air Conditioning Compressor Oil Capacity
- Air Conditioning Refrigerant Capacity
- Automatic Transmission Fluid Capacity
- Axle Oil Capacity
- Brake Fluid Capacity
- Cooling Fluid Capacity
- Engine Oil Capacity
- Fluid and Lubricant Specifications
- Manual Transmission Oil Capacity
- Engine Fastener Tightening Specifications
- Front Suspension Fastener Tightening Specifications
- Rear Suspension Fastener Tightening Specifications
- Transmission Fastener Tightening Specifications
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 Vauxhall 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 1999 Vauxhall Omega Sedan you're not only saving money, but also also improving your technical skills and learning something new.
1999 Vauxhall Omega Sedan generations
In 1999 Vauxhall offered 2 generations of the Omega Sedan. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.