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Condition Value
expand_moreAir intake system
expand_moreIntake manifold
17 D (4EE1) engine 16.23 lbf⋅ft
X17D (4EE1) engine 18.44 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 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 diesel straight-4 1.7 L 17 DR engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.8 L C 18 NZ engines 13.28 lbf⋅ft
All Opel gasoline straight-4 2.0 L C 20 NE engines 13.28 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.6 L X 16 XEL engines 18.44 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreAuxiliary drive belt tensioner
All Opel gasoline straight-4 1.8 L C 18 XEL engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.6 L X 16 XEL engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.8 L X 18 XE engines 18.44 lbf⋅ft
All Opel gasoline straight-4 2.0 L X 20 XEV engines 18.44 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreAir-conditioning compressor
M10 25.81 lbf⋅ft
M8 18.44 lbf⋅ft
Air-conditioning compressor bracket 25.81 lbf⋅ft
Air-conditioning compressor pressure line 29.5 lbf⋅ft
expand_moreAlternator
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
M10 screws 25.81 lbf⋅ft
M8 screws 18.44 lbf⋅ft
M10 screws 35.4 lbf⋅ft
M8 screws 17.7 lbf⋅ft
M10 screws 25.81 lbf⋅ft
M8 screws 18.44 lbf⋅ft
expand_moreAll other modifications
M10 29.5 lbf⋅ft
M8 22.13 lbf⋅ft
Generator bracket 29.5 lbf⋅ft
expand_morePower steering pump bracket
All Opel diesel straight-4 1.7 L 17 DR engines 25.81 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DTL engines 25.81 lbf⋅ft
All other modifications 18.44 lbf⋅ft
Hydraulic lines at the servo-steering pump 20.65 lbf⋅ft
Servo pump pulley 18.44 lbf⋅ft
expand_moreServo steering pump
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
Nuts 29.5 lbf⋅ft
Screws 18.44 lbf⋅ft
Tensioning screws 18.44 lbf⋅ft
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 29.5 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 29.5 lbf⋅ft
Nuts 29.5 lbf⋅ft
Screws 18.44 lbf⋅ft
Tensioning screws 18.44 lbf⋅ft
expand_moreAll other modifications
On the engine block 22.13 lbf⋅ft
expand_moreCarburetion
Fuel-distributing pipe 5.9 lbf⋅ft
Injection hoses 18.44 lbf⋅ft
Injection nozzle (injector) 51.63 lbf⋅ft
expand_moreInjection pump
At the bracket 18.44 lbf⋅ft
M6 8.85 lbf⋅ft
expand_moreInjection pump pulley
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 50.89 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 50.89 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreCharging
Turbo charger 22.13 lbf⋅ft
expand_moreCooling system
expand_moreCoolant pump
M6 5.9 lbf⋅ft
All Opel diesel straight-4 1.7 L 17 DR engines 18.44 lbf⋅ft
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 18.44 lbf⋅ft
M6 5.9 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 18.44 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DTL engines 18.44 lbf⋅ft
expand_moreAll other modifications
M6 5.9 lbf⋅ft
M8 14.75 lbf⋅ft
Coolant pump pulley 7.38 lbf⋅ft
expand_moreCylinder head
expand_moreCamshaft bearing
17 D (4EE1) engine 5.9 lbf⋅ft
X17D (4EE1) engine 18.44 lbf⋅ft
All other modifications 5.9 lbf⋅ft
expand_moreCylinder head screws
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
First stage 18.44 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
Fourth stage 45°
Fifth stage Warm-up run
Sixth stage 30°
Seventh stage 15°
Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 1.7 L 17 DT (TC4EE1).
Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 1.7 L 17 DT (TC4EE1).
First stage 29.5 lbf⋅ft
Use new screws See figure 1.
Second stage 6075°
Third stage 6075°
Figure 2. Cylinder head, Cylinder head screws, Opel gasoline straight-4 1.4 L C 14 SE.
Figure 2. Cylinder head, Cylinder head screws, Opel gasoline straight-4 1.4 L C 14 SE.
First stage 18.44 lbf⋅ft
Use new screws See figure 2.
Second stage 60°
Third stage 60°
Fourth stage 60°
First stage 18.44 lbf⋅ft
Use new screws.
Second stage 60°
Third stage 60°
Fourth stage 60°
First stage 18.44 lbf⋅ft
See figure 2.
Second stage 90°
Third stage 90°
Fourth stage 90°
First stage 18.44 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 15°
First stage 18.44 lbf⋅ft
Use new screws See figure 2.
Second stage 90°
Third stage 90°
Fourth stage 90°
First stage 18.44 lbf⋅ft
Use new screws See figure 2.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 45°
First stage 18.44 lbf⋅ft
Use new screws.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 45°
First stage 18.44 lbf⋅ft
Use new screws See figure 2.
Second stage 90°
Third stage 90°
Fourth stage 45°
First stage 18.44 lbf⋅ft
Use new screws See figure 2.
Second stage 90°
Third stage 90°
Fourth stage 90°
Fifth stage 15°
expand_moreAll other modifications
First stage 18.44 lbf⋅ft
Replace screws. See figure 2.
Second stage 60°
Third stage 60°
Fourth stage 60°
expand_moreValve cover
17 D (4EE1) engine 5.9 lbf⋅ft
X17D (4EE1) engine 7.38 lbf⋅ft
All other modifications 5.9 lbf⋅ft
expand_moreEngine block
expand_moreConnecting rod bearing
expand_moreAll Opel gasoline straight-4 1.4 L 14 SE engines
First stage 18.44 lbf⋅ft
Replace screws and nuts.
Second stage 30°
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
First stage 25.81 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
First stage 18.44 lbf⋅ft
Replace screws and nuts.
Second stage 100115°
First stage 25.81 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
First stage 18.44 lbf⋅ft
Replace screws and nuts.
Second stage 30°
First stage 25.81 lbf⋅ft
Second stage 45°
Third stage 15°
First stage 25.81 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
expand_moreAll other modifications
First stage 18.44 lbf⋅ft
Second stage 30°
expand_moreCrankshaft central screws
expand_moreM12
First stage 66.38 lbf⋅ft
Second stage 30°
Third stage 15°
Otherwise 40.57 lbf⋅ft
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 144.56 lbf⋅ft
expand_moreM12
First stage 66.38 lbf⋅ft
Second stage 30°
Third stage 15°
Otherwise 40.57 lbf⋅ft
expand_moreM10
With fan belt 40.57 lbf⋅ft
expand_moreWith ribbed V-belt
First stage 40.57 lbf⋅ft
Use new screw.
Second stage 45°
Third stage 15°
expand_moreM12
expand_moreWith ribbed V-belt
First stage 70.07 lbf⋅ft
Use new screw.
Second stage 30°
Third stage 15°
expand_moreM10
First stage 40.57 lbf⋅ft
Replace screws.
Second stage 45°
Third stage 15°
expand_moreM12
First stage 66.38 lbf⋅ft
Replace screws.
Second stage 30°
Third stage 15°
Otherwise 40.57 lbf⋅ft
Replace screws.
First stage 70.07 lbf⋅ft
Use new screw.
Second stage 30°
Third stage 15°
First stage 70.07 lbf⋅ft
Use new screw.
Second stage 30°
Third stage 15°
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 144.56 lbf⋅ft
expand_moreM12
First stage 95.88 lbf⋅ft
Use new screw.
Second stage 4050
expand_moreM16
First stage 184.39 lbf⋅ft
Use new screw.
Second stage 4050
expand_moreAll other modifications
First stage 95.88 lbf⋅ft
Use new screw.
Second stage 4050°
Crankshaft pulley 14.75 lbf⋅ft
expand_moreFlywheel
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
First stage 47.94 lbf⋅ft
Replace screws and nuts.
Second stage 30°
Third stage 15°
expand_more17 D (4EE1) engine
First stage 47.94 lbf⋅ft
Replace screws and nuts.
Second stage 30°
Third stage 15°
expand_moreX17D (4EE1) engine
First stage 22.13 lbf⋅ft
Replace screws and nuts.
Second stage 4560°
First stage 25.81 lbf⋅ft
Replace screws and nuts.
Second stage 30°
Third stage 15°
First stage 44.25 lbf⋅ft
Second stage 30°
Third stage 15°
First stage 47.94 lbf⋅ft
Second stage 30°
Third stage 15°
First stage 25.81 lbf⋅ft
Replace screws and nuts.
Second stage 30°
Third stage 15°
First stage 47.94 lbf⋅ft
Replace screws and nuts.
Second stage 30°
Third stage 15°
First stage 47.94 lbf⋅ft
Second stage 30°
Third stage 15°
expand_moreAll other modifications
First stage 25.81 lbf⋅ft
Second stage 30°
Third stage 15°
expand_moreMain bearing
First stage 36.88 lbf⋅ft
Second stage 45°
Third stage 15°
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 64.91 lbf⋅ft
Replace and lightly oil the screw.
First stage 36.88 lbf⋅ft
Second stage 45°
Third stage 15°
First stage 36.88 lbf⋅ft
Second stage 45°
Third stage 15°
First stage 36.88 lbf⋅ft
Second stage 45°
Third stage 15°
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 64.91 lbf⋅ft
Replace and lightly oil the screw.
First stage 36.88 lbf⋅ft
Second stage 45°
Third stage 15°
expand_moreAll other modifications
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 45°
Third stage 15°
expand_moreEngine control
expand_moreCamshaft drive belt deflection pulley
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 59 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.6 L X 16 XEL engines 18.44 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 59 lbf⋅ft
All other modifications 29.5 lbf⋅ft
expand_moreCamshaft timing gear
expand_moreAll Opel gasoline straight-4 1.4 L 14 SE engines
First stage 36.88 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 15°
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
First stage 55.32 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 5°
expand_more17 D (4EE1) engine
First stage 55.32 lbf⋅ft
Replace screws and nuts.
Second stage 60°
Third stage 5°
X17D (4EE1) engine 10.33 lbf⋅ft
First stage 36.88 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 and nuts.
Second stage 60°
Third stage 15°
First stage 51.63 lbf⋅ft
Use new screw.
Second stage 60°
Third stage 5°
First stage 36.88 lbf⋅ft
Replace screws.
Second stage 60°
Third stage 15°
All other modifications 33.19 lbf⋅ft
expand_moreToothed belt guard
All Opel gasoline straight-4 1.8 L C 18 XEL engines 4.43 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 4.43 lbf⋅ft
All Opel gasoline straight-4 1.6 L X 16 XEL engines 4.43 lbf⋅ft
All Opel gasoline straight-4 1.8 L X 18 XE engines 4.43 lbf⋅ft
All Opel gasoline straight-4 2.0 L X 20 XEV engines 4.43 lbf⋅ft
All other modifications 2.95 lbf⋅ft
Toothed belt guard at the bottom 2.95 lbf⋅ft
Toothed belt guard at the top 2.95 lbf⋅ft
expand_moreToothed belt tensioning roller
All Opel diesel straight-4 1.7 L 17 DR engines 18.44 lbf⋅ft
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines 14.01 lbf⋅ft
All Opel gasoline straight-4 1.8 L C 18 NZ engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.8 L C 18 XEL engines 18.44 lbf⋅ft
All Opel gasoline straight-4 2.0 L C 20 NE engines 18.44 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines 14.01 lbf⋅ft
All Opel diesel straight-4 1.7 L X 17 DTL engines 18.44 lbf⋅ft
All Opel gasoline straight-4 1.8 L X 18 XE engines 18.44 lbf⋅ft
All other modifications 14.75 lbf⋅ft
expand_moreToothed belt tightener
All Opel diesel straight-4 1.7 L X 17 DTL engines 18.44 lbf⋅ft
All Opel gasoline straight-4 2.0 L X 20 XEV engines 14.75 lbf⋅ft
expand_moreEngine lubrication
Oil cooler lines 22.13 lbf⋅ft
expand_moreOil drain plug
All Opel gasoline straight-4 1.4 L 14 SE engines 33.19 lbf⋅ft
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
Torx screws 7.38 lbf⋅ft
With hexagon-head screws 33.19 lbf⋅ft
expand_more17 D (4EE1) engine
One-part sump 33.19 lbf⋅ft
Two-part oil sump 7.38 lbf⋅ft
X17D (4EE1) engine 57.53 lbf⋅ft
All Opel gasoline straight-4 1.8 L C 18 NZ engines 33.19 lbf⋅ft
All Opel gasoline straight-4 1.8 L C 18 XEL engines 33.19 lbf⋅ft
All Opel gasoline straight-4 2.0 L C 20 NE engines 33.19 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 33.19 lbf⋅ft
All Opel gasoline straight-4 1.6 L X 16 XEL engines 33.19 lbf⋅ft
One-part sump 33.19 lbf⋅ft
Two-part oil sump 7.38 lbf⋅ft
All Opel gasoline straight-4 1.8 L X 18 XE engines 33.19 lbf⋅ft
Torx screws 7.38 lbf⋅ft
With hexagon-head screws 33.19 lbf⋅ft
All other modifications 40.57 lbf⋅ft
Oil filter 11.06 lbf⋅ft
Oil filter housing 11.06 lbf⋅ft
expand_moreOil lines
expand_moreOil feed lines
On the engine block 14.75 lbf⋅ft
expand_moreReturn line
On engine sump 33.19 lbf⋅ft
Replace sealing rings.
Oil pump 5.9 lbf⋅ft
expand_moreOil sump
All Opel gasoline straight-4 1.4 L 14 SE engines 5.9 lbf⋅ft
Clean the thread and use screw-locking compound.
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
expand_moreAt the gearbox
Oil sump top part 29.5 lbf⋅ft
expand_moreOil sump lower part
First stage 5.9 lbf⋅ft
Second stage 30°
expand_moreOn the engine block
Oil sump top part 14.75 lbf⋅ft
One-part sump 5.9 lbf⋅ft
expand_more17 D (4EE1) engine
One-part sump 5.9 lbf⋅ft
Clean the thread and use screw-locking compound.
expand_moreOtherwise
expand_moreOil sump top part
At the gearbox 29.5 lbf⋅ft
On the engine block 14.75 lbf⋅ft
expand_moreOil sump lower part
First stage 5.9 lbf⋅ft
Second stage 30°
X17D (4EE1) engine 7.38 lbf⋅ft
expand_moreAt the gearbox
M10 29.5 lbf⋅ft
M8 14.75 lbf⋅ft
On the engine block 7.38 lbf⋅ft
One-part sump 5.9 lbf⋅ft
Use screw-locking compound.
All Opel gasoline straight-4 1.8 L C 18 NZ engines 7.38 lbf⋅ft
Clean the thread and use screw-locking compound.
All Opel gasoline straight-4 1.8 L C 18 XEL engines 7.38 lbf⋅ft
Clean the thread and use screw-locking compound.
All Opel gasoline straight-4 2.0 L C 20 NE engines 7.38 lbf⋅ft
Clean the thread and use screw-locking compound.
At the gearbox 14.75 lbf⋅ft
On the engine block 7.38 lbf⋅ft
All Opel gasoline straight-4 1.6 L X 16 XEL engines 5.9 lbf⋅ft
Clean the thread and use screw-locking compound.
expand_moreAt the gearbox
Oil sump top part 29.5 lbf⋅ft
expand_moreOil sump lower part
First stage 5.9 lbf⋅ft
Second stage 30°
expand_moreOn the engine block
Oil sump top part 14.75 lbf⋅ft
One-part sump 5.9 lbf⋅ft
All Opel gasoline straight-4 1.8 L X 18 XE 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.
expand_moreAll other modifications
expand_moreAt the gearbox
M10 29.5 lbf⋅ft
M8 14.75 lbf⋅ft
On the engine block 5.9 lbf⋅ft
expand_moreEngine management
Crankshaft sensor 5.9 lbf⋅ft
Glow plugs 14.75 lbf⋅ft
expand_moreKnock sensor
All Opel gasoline straight-4 1.8 L C 18 XEL engines 14.75 lbf⋅ft
All Opel gasoline straight-4 1.4 L X 14 XE engines 14.75 lbf⋅ft
All Opel gasoline straight-4 1.8 L X 18 XE engines 14.75 lbf⋅ft
All other modifications 9.59 lbf⋅ft
Lambda sensor 22.13 lbf⋅ft
Use assembly paste
expand_moreEngine mounting
Engine bracket 44.25 lbf⋅ft
Use new locking washers.
expand_moreEngine mounting
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
expand_moreOn chassis
Front 47.94 lbf⋅ft
Use screw-locking compound.
At the bracket 44.25 lbf⋅ft
On chassis 47.94 lbf⋅ft
Use screw-locking compound.
expand_moreOn chassis
Front 47.94 lbf⋅ft
Use screw-locking compound.
At the bracket 44.25 lbf⋅ft
On chassis 47.94 lbf⋅ft
Use screw-locking compound.
expand_moreAll other modifications
At the bracket 25.81 lbf⋅ft
Use screw-locking compound.
On chassis 47.94 lbf⋅ft
Use screw-locking compound.
expand_moreExhaust system
expand_moreExhaust manifold
17 D (4EE1) engine 16.23 lbf⋅ft
X17D (4EE1) engine 22.13 lbf⋅ft
All other modifications 16.23 lbf⋅ft
Replace screws and nuts.
Exhaust pipe 18.44 lbf⋅ft
expand_moreFuel supply
Fuel lines 11.06 lbf⋅ft
expand_moreIgnition system
expand_moreSpark plugs
All Opel gasoline straight-4 1.4 L C 14 SE engines 14.75 lbf⋅ft
All other modifications 18.44 lbf⋅ft
expand_moreStart system
expand_moreStarter
expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines
M10 33.19 lbf⋅ft
M12 44.25 lbf⋅ft
M10 33.19 lbf⋅ft
M12 44.25 lbf⋅ft
expand_moreAll other modifications
M10 33.19 lbf⋅ft
M12 44.25 lbf⋅ft
M8 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 1998 Opel Astra 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.

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 Astra 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 1998 Opel Astra Sedan you're not only saving money, but also also improving your technical skills and learning something new.

1998 Opel Astra Sedan generations

In 1998 Opel offered 2 generations of the Astra Sedan. Engine fastener tightening specifications may vary in different generations. Be sure that you are looking at the rigt modification.

Opel Astra Sedan F facelift model years

Units:
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