1998 Opel Astra Sedan engine fastener tightening specifications

in your garage to make future searches easy.

Condition	Value

expand_moreAir intake system

expand_moreIntake manifold

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines


17 D (4EE1) engine	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
X17D (4EE1) engine	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


All Opel gasoline straight-4 1.4 L X 14 XE engines	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 diesel straight-4 1.7 L 17 DR engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.8 L C 18 NZ engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All Opel gasoline straight-4 2.0 L C 20 NE engines	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m
All Opel gasoline straight-4 1.4 L X 14 XE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.6 L X 16 XEL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAuxiliary drive belt tensioner


All Opel gasoline straight-4 1.8 L C 18 XEL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.4 L X 14 XE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.6 L X 16 XEL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.8 L X 18 XE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 2.0 L X 20 XEV engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAir-conditioning compressor


M10	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Air-conditioning compressor bracket	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Air-conditioning compressor pressure line	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAlternator

expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines


M10 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
M8 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines


M10 screws	35.4 lbf⋅ft35.4 lbf⋅ft48 N⋅m
M8 screws	17.7 lbf⋅ft17.7 lbf⋅ft24 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


M10 screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
M8 screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


M10	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
M8	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m


Generator bracket	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_morePower steering pump bracket


All Opel diesel straight-4 1.7 L 17 DR engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All Opel diesel straight-4 1.7 L X 17 DTL engines	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


Hydraulic lines at the servo-steering pump	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m
Servo pump pulley	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreServo steering pump

expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines


Nuts	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Tensioning screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


Nuts	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Tensioning screws	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


On the engine block	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreCarburetion


Fuel-distributing pipe	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Injection hoses	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Injection nozzle (injector)	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreInjection pump


At the bracket	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
M6	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m

expand_moreInjection pump pulley


All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	50.89 lbf⋅ft50.89 lbf⋅ft69 N⋅m
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	50.89 lbf⋅ft50.89 lbf⋅ft69 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCharging


Turbo charger	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreCooling system

expand_moreCoolant pump

expand_moreAll Opel gasoline straight-4 1.6 L 16 LZ2 engines


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All Opel diesel straight-4 1.7 L 17 DR engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll Opel gasoline straight-4 1.4 L C 14 NZ engines


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L X 17 DTL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Coolant pump pulley	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines


17 D (4EE1) engine	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
X17D (4EE1) engine	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCylinder head screws

expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	45°45°45°
Fifth stage	Warm-up run
Sixth stage	30°30°30°
Seventh stage	15°15°15°

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines

Figure 1. Cylinder head, Cylinder head screws, Opel diesel straight-4 1.7 L 17 DT (TC4EE1).


First stage	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use new screws See figure 1.
Second stage	60–75°60–75°60–75°
Third stage	60–75°60–75°60–75°

expand_moreAll Opel gasoline straight-4 1.4 L C 14 SE engines

Figure 2. Cylinder head, Cylinder head screws, Opel gasoline straight-4 1.4 L C 14 SE.


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 2.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_moreAll Opel gasoline straight-4 1.6 L C 16 NZ engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_moreAll Opel gasoline straight-4 1.8 L C 18 NZ engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°

expand_moreAll Opel gasoline straight-4 1.8 L C 18 XEL engines


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

expand_moreAll Opel gasoline straight-4 2.0 L C 20 NE engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°

expand_moreAll Opel gasoline straight-4 1.4 L X 14 XE engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	45°45°45°

expand_moreAll Opel gasoline straight-4 1.6 L X 16 XEL engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	45°45°45°

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	45°45°45°

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


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 2.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	15°15°15°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 2.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_moreValve cover

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines


17 D (4EE1) engine	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
X17D (4EE1) engine	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

expand_moreAll Opel gasoline straight-4 1.4 L 14 SE engines


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

expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines


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_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws and nuts.
Second stage	100–115°100–115°100–115°

expand_moreAll Opel gasoline straight-4 1.8 L C 18 XEL engines


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_moreAll Opel gasoline straight-4 1.6 L X 16 XEL engines


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

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


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

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


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_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	30°30°30°

expand_moreCrankshaft central screws

expand_moreAll Opel gasoline straight-4 1.6 L 16 LZ2 engines

expand_moreM12


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°


Otherwise	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m


All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	144.56 lbf⋅ft144.56 lbf⋅ft196 N⋅m

expand_moreAll Opel gasoline straight-4 1.4 L C 14 NZ engines

expand_moreM12


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°


Otherwise	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreAll Opel gasoline straight-4 1.4 L C 14 SE engines

expand_moreM10


With fan belt	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreWith ribbed V-belt


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Use new screw.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreM12

expand_moreWith ribbed V-belt


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Use new screw.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.6 L C 16 NZ engines

expand_moreM10


First stage	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreM12


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws.
Second stage	30°30°30°
Third stage	15°15°15°


Otherwise	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.

expand_moreAll Opel gasoline straight-4 1.4 L X 14 XE engines


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Use new screw.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.6 L X 16 XEL engines


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Use new screw.
Second stage	30°30°30°
Third stage	15°15°15°


All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	144.56 lbf⋅ft144.56 lbf⋅ft196 N⋅m

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

expand_moreM12


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

expand_moreM16


First stage	184.39 lbf⋅ft184.39 lbf⋅ft250 N⋅m
Use new screw.
Second stage	40–50

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_moreAll Opel diesel straight-4 1.7 L 17 DR engines


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines

expand_more17 D (4EE1) engine


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreX17D (4EE1) engine


First stage	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Replace screws and nuts.
Second stage	45–60°45–60°45–60°

expand_moreAll Opel gasoline straight-4 1.4 L C 14 SE engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.8 L C 18 NZ engines


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

expand_moreAll Opel gasoline straight-4 1.8 L C 18 XEL engines


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel gasoline straight-4 1.4 L X 14 XE engines


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

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


First stage	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing

expand_moreAll Opel gasoline straight-4 1.6 L 16 LZ2 engines


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


All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	64.91 lbf⋅ft64.91 lbf⋅ft88 N⋅m
Replace and lightly oil the screw.

expand_moreAll Opel gasoline straight-4 1.4 L C 14 NZ engines


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

expand_moreAll Opel gasoline straight-4 1.4 L C 14 SE engines


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

expand_moreAll Opel gasoline straight-4 1.4 L X 14 XE engines


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


All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	64.91 lbf⋅ft64.91 lbf⋅ft88 N⋅m
Replace and lightly oil the screw.

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


First stage	36.88 lbf⋅ft36.88 lbf⋅ft50 N⋅m
Second stage	45°45°45°
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_moreEngine control

expand_moreCamshaft drive belt deflection pulley


All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	59 lbf⋅ft59 lbf⋅ft80 N⋅m
All Opel gasoline straight-4 1.4 L X 14 XE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.6 L X 16 XEL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	59 lbf⋅ft59 lbf⋅ft80 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreCamshaft timing gear

expand_moreAll Opel gasoline straight-4 1.4 L 14 SE engines


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 Opel diesel straight-4 1.7 L 17 DR engines


First stage	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Replace screws.
Second stage	60°60°60°
Third stage	5°5°5°

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines

expand_more17 D (4EE1) engine


First stage	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	5°5°5°


X17D (4EE1) engine	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m

expand_moreAll Opel gasoline straight-4 1.8 L C 18 XEL engines


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

expand_moreAll Opel gasoline straight-4 1.4 L X 14 XE engines


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

expand_moreAll Opel gasoline straight-4 1.6 L X 16 XEL engines


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 Opel diesel straight-4 1.7 L X 17 DTL engines


First stage	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m
Use new screw.
Second stage	60°60°60°
Third stage	5°5°5°

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


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


All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreToothed belt guard


All Opel gasoline straight-4 1.8 L C 18 XEL engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel gasoline straight-4 1.4 L X 14 XE engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel gasoline straight-4 1.6 L X 16 XEL engines	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All Opel gasoline straight-4 1.8 L X 18 XE engines	4.43 lbf⋅ft4.43 lbf⋅ft6 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	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m


Toothed belt guard at the bottom	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
Toothed belt guard at the top	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt tensioning roller


All Opel diesel straight-4 1.7 L 17 DR engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
All Opel gasoline straight-4 1.8 L C 18 NZ engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.8 L C 18 XEL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 2.0 L C 20 NE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel diesel straight-4 1.7 L X 17 DT (TC4EE1) engines	14.01 lbf⋅ft14.01 lbf⋅ft19 N⋅m
All Opel diesel straight-4 1.7 L X 17 DTL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 1.8 L X 18 XE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreToothed belt tightener


All Opel diesel straight-4 1.7 L X 17 DTL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All Opel gasoline straight-4 2.0 L X 20 XEV engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication


Oil cooler lines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreOil drain plug


All Opel gasoline straight-4 1.4 L 14 SE engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines


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

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines

expand_more17 D (4EE1) engine


One-part sump	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Two-part oil sump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


X17D (4EE1) engine	57.53 lbf⋅ft57.53 lbf⋅ft78 N⋅m


All Opel gasoline straight-4 1.8 L C 18 NZ engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Opel gasoline straight-4 1.8 L C 18 XEL engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Opel gasoline straight-4 2.0 L C 20 NE engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Opel gasoline straight-4 1.4 L X 14 XE engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All Opel gasoline straight-4 1.6 L X 16 XEL engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


One-part sump	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Two-part oil sump	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


All Opel gasoline straight-4 1.8 L X 18 XE engines	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

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


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


All other modifications	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m


Oil filter	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Oil filter housing	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreOil lines

expand_moreOil feed lines


On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreReturn line


On engine sump	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Replace sealing rings.


Oil pump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreOil sump


All Opel gasoline straight-4 1.4 L 14 SE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
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⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreOil sump lower part


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

expand_moreOn the engine block


Oil sump top part	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


One-part sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines

expand_more17 D (4EE1) engine


One-part sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.

expand_moreOtherwise

expand_moreOil sump top part


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil sump lower part


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


X17D (4EE1) engine	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreAll Opel gasoline straight-4 1.4 L C 14 SE engines

expand_moreAt the gearbox


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


On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
One-part sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use screw-locking compound.


All Opel gasoline straight-4 1.8 L C 18 NZ engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
All Opel gasoline straight-4 1.8 L C 18 XEL engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.
All Opel gasoline straight-4 2.0 L C 20 NE engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.

expand_moreAll Opel gasoline straight-4 1.4 L X 14 XE engines


At the gearbox	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m


All Opel gasoline straight-4 1.6 L X 16 XEL engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines

expand_moreAt the gearbox


Oil sump top part	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreOil sump lower part


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

expand_moreOn the engine block


Oil sump top part	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


One-part sump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All Opel gasoline straight-4 1.8 L X 18 XE engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.

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


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.

expand_moreAll other modifications

expand_moreAt the gearbox


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


On the engine block	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine management


Crankshaft sensor	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Glow plugs	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreKnock sensor


All Opel gasoline straight-4 1.8 L C 18 XEL engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.4 L X 14 XE engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.8 L X 18 XE engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m


Lambda sensor	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
Use assembly paste

expand_moreEngine mounting


Engine bracket	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
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⋅ft47.94 lbf⋅ft65 N⋅m
Use screw-locking compound.

expand_moreAll Opel gasoline straight-4 1.8 L C 18 XEL engines


At the bracket	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
On chassis	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Use screw-locking compound.

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines

expand_moreOn chassis


Front	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Use screw-locking compound.

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


At the bracket	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
On chassis	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Use screw-locking compound.

expand_moreAll other modifications


At the bracket	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Use screw-locking compound.
On chassis	47.94 lbf⋅ft47.94 lbf⋅ft65 N⋅m
Use screw-locking compound.

expand_moreExhaust system

expand_moreExhaust manifold

expand_moreAll Opel diesel straight-4 1.7 L 17 DT (TC4EE1) engines


17 D (4EE1) engine	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
X17D (4EE1) engine	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m


All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.


Exhaust pipe	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreFuel supply


Fuel lines	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


All Opel gasoline straight-4 1.4 L C 14 SE engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreStart system

expand_moreStarter

expand_moreAll Opel diesel straight-4 1.7 L 17 DR engines


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M12	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreAll Opel diesel straight-4 1.7 L X 17 DTL engines


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M12	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m

expand_moreAll other modifications


M10	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
M12	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
M8	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 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.

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 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.

G

T Platform (T-body, GM2700, GM3000) 1979-2012

1998 Opel Astra Sedan F facelift Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

1998 Opel Astra Sedan generations

G

Opel Astra Sedan F facelift model years

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