1994 Opel Astra Cabriolet engine fastener tightening specifications

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Condition	Value

expand_moreAir intake system

expand_moreIntake manifold


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

expand_moreAuxiliary assemblies

expand_moreAuxiliary drive belt tensioner


All Opel gasoline straight-4 2.0 L C 20 NE engines	13.28 lbf⋅ft13.28 lbf⋅ft18 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 1.8 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_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 gasoline straight-4 1.8 L C 18 XEL engines


Bottom	25.81 lbf⋅ft25.81 lbf⋅ft35 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

expand_moreGenerator bracket


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 1.8 L X 18 XE engines	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m
All other modifications	29.5 lbf⋅ft29.5 lbf⋅ft40 N⋅m


Power steering pump bracket	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
Servo pump pulley	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreServo steering pump


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 1.8 L X 18 XE engines	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

expand_moreCooling system

expand_moreCoolant pump


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 1.8 L X 18 XE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreAll other modifications


M6	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCylinder head


Camshaft bearing	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreCylinder head screws

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

Figure 1. 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 1.
Second stage	60°60°60°
Third stage	60°60°60°
Fourth stage	60°60°60°

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


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

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


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

expand_moreAll other modifications


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°


Valve cover	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreEngine block

expand_moreConnecting rod bearing

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 other modifications


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

expand_moreCrankshaft central screws

expand_moreAll Opel gasoline straight-4 1.4 L C 14 SE 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 1.6 L X 16 SZ 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 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 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 2.0 L C 20 NE engines


First stage	44.25 lbf⋅ft44.25 lbf⋅ft60 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
Replace screws and nuts.
Second stage	30°30°30°
Third stage	15°15°15°

expand_moreMain bearing


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


Camshaft drive belt deflection pulley	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m

expand_moreCamshaft timing gear

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 2.0 L C 20 NE 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°


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 1.8 L X 18 XE engines	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


All Opel gasoline straight-4 2.0 L C 20 NE engines	18.44 lbf⋅ft18.44 lbf⋅ft25 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 N⋅m

expand_moreEngine lubrication

expand_moreOil drain plug

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


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


All Opel gasoline straight-4 2.0 L C 20 NE engines	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
Oil pump	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreOil sump

expand_moreAll Opel gasoline straight-4 1.8 L C 18 XEL 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
Clean the thread and use screw-locking compound.
Second stage	30°30°30°


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


Camshaft sensor	4.43 lbf⋅ft4.43 lbf⋅ft6 N⋅m
Crankshaft sensor	5.9 lbf⋅ft5.9 lbf⋅ft8 N⋅m

expand_moreKnock sensor


All Opel gasoline straight-4 2.0 L C 20 NE engines	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All Opel gasoline straight-4 1.6 L X 16 SZ engines	9.59 lbf⋅ft9.59 lbf⋅ft13 N⋅m
All other modifications	14.75 lbf⋅ft14.75 lbf⋅ft20 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 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 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


Exhaust manifold	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_moreIgnition system


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

expand_moreStart system

expand_moreStarter


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 1.8 L X 18 XE engines	33.19 lbf⋅ft33.19 lbf⋅ft45 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 1994 Opel Astra Cabriolet 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 Cabriolet 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 1994 Opel Astra Cabriolet you're not only saving money, but also also improving your technical skills and learning something new.

1994 Opel Astra Cabriolet generations

In 1994 Opel offered 2 generations of the Astra Cabriolet. 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

Opel Astra Cabriolet F model years

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1993
logo_opel

1994

1994 Opel Astra Cabriolet F Engine Fastener Tightening Specifications

Table of Contents

Conquer your fears and never give up!

1994 Opel Astra Cabriolet generations

F facelift

Opel Astra Cabriolet F model years

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