1998 Opel Astra Hatchback engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace screws and nuts.

expand_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


Lower section of intake manifold	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.
Upper section of intake manifold	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


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

expand_moreIntake manifold support


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll other modifications


On intake manifold	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Support on cylinder head	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt deflection pulley


All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAuxiliary drive belt tensioner

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)


M10	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
M8	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


With air-conditioning	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
2.0 DI with diesel straight-4 2.0 L 80 HP engine (1998.2–2005.1)	30.98 lbf⋅ft30.98 lbf⋅ft42 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAir-conditioning compressor


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)


Front	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Rear	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_more1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)


M8	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAir-conditioning compressor bracket


All Opel gasoline straight-4 2.0 L C 20 SEL engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All Opel gasoline straight-4 1.6 L X 16 SZR engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Opel diesel straight-4 1.7 L X 17 DTL engines	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All Opel gasoline straight-4 2.0 L X 20 XEV engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAir-conditioning compressor pressure line


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Replace sealing rings.

expand_moreAlternator

expand_more1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)


Bottom	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Top	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_more1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)


At the bracket	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
Bottom	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


Bottom	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Top	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreGenerator bracket

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


On the engine block	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Otherwise	13.28 lbf⋅ft13.28 lbf⋅ft18 N⋅m


All other modifications	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_morePower steering pump bracket


At the subframe	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m

expand_moreHydraulic lines at the servo-steering pump


Manufacturer Delphi	19.91 lbf⋅ft19.91 lbf⋅ft27 N⋅m
Manufacturer TRW	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreServo steering pump


At the bracket	5.16 lbf⋅ft5.16 lbf⋅ft7 N⋅m

expand_moreVacuum pump


All Opel diesel straight-4 1.7 L X 17 DTL engines	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreCarburetion


Injection pump drive wheel	20.65 lbf⋅ft20.65 lbf⋅ft28 N⋅m

expand_moreExhaust gas return valve


All Opel gasoline straight-4 1.2 L X 12 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreExhaust recirculation pipe


All Opel gasoline straight-4 1.2 L X 12 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Opel gasoline straight-4 1.8 L X 18 XE1 engines	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreFuel-distributing pipe


1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreInjection hoses


All Opel diesel straight-4 1.7 L X 17 DTL engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreInjection nozzle (injector)


All Opel diesel straight-4 1.7 L X 17 DTL engines	51.63 lbf⋅ft51.63 lbf⋅ft70 N⋅m

expand_moreAll other modifications


First stage	hand-screwed
Second stage	360°360°360°


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

expand_moreInjection pump pulley


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

expand_moreCharging

expand_moreTurbo charger


All Opel diesel straight-4 1.7 L X 17 DTL engines	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreTurbocharger oil feed line

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


At the turbocharger	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m
On the engine block	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll other modifications

expand_moreAt the turbocharger


Support	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Otherwise	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace sealing rings.

expand_moreOn the engine block


Support	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Otherwise	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


Union nuts	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreTurbocharger oil return line

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


At the turbocharger	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCooling system

expand_moreCoolant drain plug


Coolant pump	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCoolant pump


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
2.0 DI with diesel straight-4 2.0 L 80 HP engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new screws with the screw- locking compound.

expand_moreCoolant pump pulley


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Fan wheel	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreRadiator mounting


Bottom	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreCylinder head

expand_moreCamshaft bearing


2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
2.0 DI with diesel straight-4 2.0 L 80 HP engine (1998.2–2005.1)	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_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)

Figure 1. Cylinder head, Cylinder head screws, 1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9).


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 1.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

expand_more1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 1.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	45°45°45°

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


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	45°45°45°
Fifth stage	Test run
Sixth stage	30°30°30°
Seventh stage	15°15°15°

expand_more1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)


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°
Fifth stage	45°45°45°

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


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°
Fifth stage	15°15°15°

expand_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Use new screws See figure 1.
Second stage	65°65°65°
Third stage	65°65°65°
Fourth stage	65°65°65°
Fifth stage	65°65°65°
Sixth stage	15°15°15°

expand_moreAll other modifications


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Replace screws. See figure 1.
Second stage	90°90°90°
Third stage	90°90°90°
Fourth stage	90°90°90°
Fifth stage	45°45°45°

expand_moreValve cover


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

expand_moreEngine block

expand_moreConnecting rod bearing

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)

expand_moreM6


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Second stage	60°60°60°
Third stage	15°15°15°

expand_moreM6,5


First stage	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
Second stage	60°60°60°
Third stage	15°15°15°

expand_more1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)


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

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


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

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


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_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


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

expand_moreCrankcase ventilation


Crankcase ventilation pipe	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use new seals.

expand_moreCrankshaft central screws

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace screws and nuts.
Second stage	45°45°45°

expand_more1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Replace screws.
Second stage	30°30°30°
Third stage	15°15°15°

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


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

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


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

expand_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


First stage	110.63 lbf⋅ft110.63 lbf⋅ft150 N⋅m
Replace screws and nuts.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreAll other modifications


First stage	70.07 lbf⋅ft70.07 lbf⋅ft95 N⋅m
Use new screw.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreCrankshaft pulley


All Opel gasoline straight-4 1.2 L X 12 XE engines	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All Opel gasoline straight-4 1.8 L X 18 XE1 engines	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Use new screw.
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreFlywheel

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)


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

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


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_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


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_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


First stage	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
Replace screws and nuts.
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
Clean the thread, use new screws and screw-locking compound.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)

expand_moreM6


First stage	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Second stage	60°60°60°

expand_moreM8


First stage	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Second stage	60°60°60°

expand_more1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)


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

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


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

expand_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 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_moreEngine control

expand_moreCamshaft drive belt deflection pulley


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_moreAll other modifications


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

expand_moreCamshaft timing chain guide rail


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


Camshaft timing chain slip rail	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Use screw-locking compound.
Camshaft timing chain tensioner	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCamshaft timing chain tensioning rail


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreCamshaft timing gear

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)


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


1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


First stage	55.32 lbf⋅ft55.32 lbf⋅ft75 N⋅m
Replace screws.
Second stage	60–65°60–65°60–65°

expand_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws and nuts.
Second stage	60°60°60°
Third stage	30°30°30°

expand_moreAll other modifications


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_moreChain tensioner


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


Chain tensioner locking screws	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
Control drive chain guide rail	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreInlet camshaft wheel


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_moreOutlet camshaft wheel


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_moreTiming case cover

expand_moreAll Opel gasoline straight-4 1.2 L X 12 XE engines


M10	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreToothed belt guard at the bottom


2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt guard at the top


2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
All other modifications	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreToothed belt tensioning roller


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	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 gasoline straight-4 1.8 L X 18 XE1 engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication

expand_moreOil cooler


All Opel diesel straight-4 1.7 L X 17 DTL engines	3.69 lbf⋅ft3.69 lbf⋅ft5 N⋅m

expand_moreOil cooler lines


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreOil drain plug

expand_more1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)


Torx screws	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
With hexagon-head screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 143 N⋅m at 4000 RPM engine (1998.2–2005.1)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM engine (1998.2–2005.1)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)


Aluminium oil sump (Torx screws)	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
Aluminium oil sump (hexagon-head screws)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreWith hexagon-head screws


Sheet-steel sump	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


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

expand_more1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)


Torx screws	10.33 lbf⋅ft10.33 lbf⋅ft14 N⋅m
With hexagon-head screws	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


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	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Replace sealing rings.

expand_moreOil filter


All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m
Slightly oil sealing lips.

expand_moreOil filter housing

expand_moreAll Opel gasoline straight-4 1.8 L X 18 XE1 engines


On the engine block	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil lines

expand_moreAll other modifications


At the turbocharger	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreOil pressure sensor


1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreOil pump


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 143 N⋅m at 4000 RPM engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreOil sump

expand_more1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)


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


1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 143 N⋅m at 4000 RPM engine (1998.2–2005.1)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM engine (1998.2–2005.1)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.
1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
Clean the thread and use screw-locking compound.

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)

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_more1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
Clean the thread and use screw-locking compound.

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


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_more2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)

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	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreAll other modifications


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreEngine management

expand_moreCamshaft sensor


All other modifications	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreCrankshaft sensor


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreGlow plugs


All Opel diesel straight-4 1.7 L X 17 DTL engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	7.38 lbf⋅ft7.38 lbf⋅ft10 N⋅m

expand_moreKnock sensor


1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 143 N⋅m at 4000 RPM engine (1998.2–2005.1)	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
1.6 16V with gasoline straight-4 1.6 L 99 HP at 6000 RPM, 150 N⋅m at 3600 RPM engine (1998.2–2005.1)	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreLambda sensor


1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
Use assembly paste
All other modifications	22.13 lbf⋅ft22.13 lbf⋅ft30 N⋅m

expand_moreEngine mounting

expand_moreEngine bracket

expand_moreAll other modifications


On engine mounting	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreEngine mounting

expand_more1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)

expand_moreAt the axle support


Front	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_moreOn chassis


Right	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m


On engine bracket	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m

expand_more1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)


On chassis	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws.
On the engine block	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m

expand_moreAll other modifications


On chassis	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Replace screws.
On engine bracket	40.57 lbf⋅ft40.57 lbf⋅ft55 N⋅m
Replace screws.

expand_moreSubframe


First stage	66.38 lbf⋅ft66.38 lbf⋅ft90 N⋅m
Replace screws.
Second stage	45°45°45°
Third stage	15°15°15°

expand_moreExhaust system

expand_moreCatalytic converter


1.2 16V with gasoline straight-4 1.2 L 64 HP at 5600 RPM, 110 N⋅m at 4000 RPM engine (1998.2–2000.9)	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_moreExhaust manifold

expand_more1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)


X14XE engine	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.
Z14XE engine	8.85 lbf⋅ft8.85 lbf⋅ft12 N⋅m
Replace screws and nuts.


1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	21.39 lbf⋅ft21.39 lbf⋅ft29 N⋅m
Replace screws and nuts.
All other modifications	16.23 lbf⋅ft16.23 lbf⋅ft22 N⋅m
Replace screws and nuts.

expand_moreExhaust manifold heat shields


1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m
All other modifications	7.38–8.85 lbf⋅ft7.38–8.85 lbf⋅ft10–12 N⋅m

expand_moreExhaust pipe

expand_more1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)


Collar screws	25.81 lbf⋅ft25.81 lbf⋅ft35 N⋅m
Nuts	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)	14.75–18.44 lbf⋅ft14.75–18.44 lbf⋅ft20–25 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m


Exhaust pipe bracket	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreExhaust pipe rear


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
1.6 with gasoline straight-4 1.6 L 74 HP at 5200 RPM, 128 N⋅m at 2800 RPM engine (1998.2–2000.9)	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m


Exhaust system middle heat protection plate	2.95 lbf⋅ft2.95 lbf⋅ft4 N⋅m

expand_moreFuel supply


Fuel filter housing	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m

expand_moreFuel lines


All other modifications	11.06 lbf⋅ft11.06 lbf⋅ft15 N⋅m

expand_moreIgnition system

expand_moreSpark plugs


All other modifications	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreStart system

expand_moreStarter


1.4 16V with gasoline straight-4 1.4 L 89 HP at 6000 RPM, 125 N⋅m at 4000 RPM engine (1998.2–2005.1)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
1.4 16V with gasoline straight-4 1.4 L 89 HP engine (1998.2–2005.1)	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more1.6 16V with gasoline straight-4 1.6 L 99 HP at 5800 RPM, 135 N⋅m at 3400 RPM engine (1998.2–2005.1)


Bottom	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Top	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m

expand_more1.7 TD with diesel straight-4 1.7 L 67 HP at 4500 RPM, 132 N⋅m at 2400 RPM engine (1998.2–2000.8)


At the gearbox	44.25 lbf⋅ft44.25 lbf⋅ft60 N⋅m
On the engine block	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m

expand_more1.8 16V with gasoline straight-4 1.8 L 114 HP at 5400 RPM, 170 N⋅m at 3400 RPM engine (1998.2–2000.9)


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_more2.0 16V with gasoline straight-4 2.0 L 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine (1998.2–2005.1)


At the gearbox	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m
On the engine block	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m


2.0 DI with diesel straight-4 2.0 L 80 HP at 4300 RPM, 185 N⋅m at 1800 RPM engine (1998.2–2005.1)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
2.0 DI with diesel straight-4 2.0 L 80 HP engine (1998.2–2005.1)	33.19 lbf⋅ft33.19 lbf⋅ft45 N⋅m
All other modifications	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 Hatchback 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

Chassis and Body Fastener Tightening Specifications
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 Hatchback 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 Hatchback you're not only saving money, but also also improving your technical skills and learning something new.

1998 Opel Astra Hatchback generations

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

F facelift

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

1998 Opel Astra Hatchback G Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

1998 Opel Astra Hatchback generations

F facelift

Opel Astra Hatchback G model years

Suggest edit